Best Bike Drivetrain Chain Tension Idlers. Reviews September, 2020

SANTITY Single Speed Bike Chain Tensioner, Lightweight Aluminum Alloy Rear Derailleur Chain Tensioner with Sprocket Bike Folding Bicycle Guide Wheel Cylcling Tool Replacement Accessories

Search only SANTITY brand name
SANTITY Single Speed Bike Chain Tensioner, Lightweight Aluminum Alloy Rear Derailleur Chain Tensioner with Sprocket Bike Folding Bicycle Guide Wheel Cylcling Tool Replacement Accessories

Current price: 13.58 USD

Saving: $4.41 (25%)


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Weight: 0.11464037624 Pounds

  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.

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Coherny Single Speed Bike Chain Tensioner Lightweight Aluminum Alloy Bicycle Replacement Accessories

Search only Coherny brand name
Coherny Single Speed Bike Chain Tensioner Lightweight Aluminum Alloy Bicycle Replacement Accessories

Current price: 15.99 USD


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  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain

More Info

JRL Black Shifter Jackshaft Kit Chain Tensioner 415 Chain 66cc 80cc Gas Motorized Bike

Search only JRL brand name
JRL Black Shifter Jackshaft Kit Chain Tensioner 415 Chain 66cc 80cc Gas Motorized Bike

Current price: 119.99 USD


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  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal

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Quintessentialz Chain Guide Mountain Bike Tensioner Custom Design

Search only Quintessentialz brand name
Quintessentialz Chain Guide Mountain Bike Tensioner Custom Design

Current price: 11.99 USD


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  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.

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DONSP1986 New Spring Chain Tensioner Kit/New Chain Idler Assy for 48cc/60cc/66cc/80cc Gas Motor Bicycle

Search only DONSP1986 brand name
DONSP1986 New Spring Chain Tensioner Kit/New Chain Idler Assy for 48cc/60cc/66cc/80cc Gas Motor Bicycle

Current price: 16.99 USD


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  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.

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CyclingDeal Archer Bike Bicycle Road MTB Aluminum Chain Tensioner Black - Single Fixie BMX Speed Fixed Gear Internal Gear Chain Tensioner

Search only CyclingDeal brand name
CyclingDeal Archer Bike Bicycle Road MTB Aluminum Chain Tensioner Black - Single Fixie BMX Speed Fixed Gear Internal Gear Chain Tensioner

Current price: 19.99 USD


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Height: 1.9685 Inches

Length: 4.7244 Inches

Width: 4.3307 Inches

Weight: 0.440924524 Pounds

  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.
  • ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a 1 year warranty !
  • Weight: 200g. Made in Taiwan
  • Rear Sprocket: Min. 18T, Max. 25T. Applicable Dropout Width: 5-9mm
  • For single speed. ​Fit Chain Size: 1/2" x 3/32"
  • To avoid from chain drop. Material: Forged 6061 Aluminum. 11T Plastic pulley

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Forart Chain Tension Idlers Bike Single Speed Aluminum Chain Tensioner Bicycle Replacement Accessories(Ship from USA)

Search only Forart brand name
Forart Chain Tension Idlers Bike Single Speed Aluminum Chain Tensioner Bicycle Replacement Accessories(Ship from USA)

Current price: 12.99 USD


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Weight: 2.20462262 Pounds

  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.
  • ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a 1 year warranty !
  • Weight: 200g. Made in Taiwan
  • Rear Sprocket: Min. 18T, Max. 25T. Applicable Dropout Width: 5-9mm
  • For single speed. ​Fit Chain Size: 1/2" x 3/32"
  • To avoid from chain drop. Material: Forged 6061 Aluminum. 11T Plastic pulley
  • Suitable for people who like cycling
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This single-speed converter is very suitable for the bicycle that suits for mountainous terrain

More Info

SHIMANO (Shimano) ALFINE CT-S510 Chain tensioner ICTS510S

Search only SHIMANO brand name
SHIMANO (Shimano) ALFINE CT-S510 Chain tensioner ICTS510S

Current price: 19.13 USD


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Height: 4.724409444 Inches

Length: 6.299212592 Inches

Width: 6.299212592 Inches

  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.
  • ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a 1 year warranty !
  • Weight: 200g. Made in Taiwan
  • Rear Sprocket: Min. 18T, Max. 25T. Applicable Dropout Width: 5-9mm
  • For single speed. ​Fit Chain Size: 1/2" x 3/32"
  • To avoid from chain drop. Material: Forged 6061 Aluminum. 11T Plastic pulley
  • Suitable for people who like cycling
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This single-speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Shimano article number I-CTS510S
  • Shimano SPARE PART Alfine chain tensioner

More Info

B-Labs C.Guide Eco Chain Tensioner

Search only B-Labs brand name
B-Labs C.Guide Eco Chain Tensioner

Current price: 37.5 USD


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Height: 2.52 Inches

Length: 1.42 Inches

Width: 0.75 Inches

  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.
  • ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a 1 year warranty !
  • Weight: 200g. Made in Taiwan
  • Rear Sprocket: Min. 18T, Max. 25T. Applicable Dropout Width: 5-9mm
  • For single speed. ​Fit Chain Size: 1/2" x 3/32"
  • To avoid from chain drop. Material: Forged 6061 Aluminum. 11T Plastic pulley
  • Suitable for people who like cycling
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This single-speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Shimano article number I-CTS510S
  • Shimano SPARE PART Alfine chain tensioner
  • Pivoting chain tube follows the chain line on 2 or 3 chaining setups
  • Split design fits over the gear cable and chain, no disassembly required
  • Zip-ties quickly onto a variety of chain stays
  • Plastic Guide and clamp with TPE elastomer for quiet, smooth chain retention

More Info

JRL Black Spring Loaded Chain tensioner for 49cc 66cc 80cc Engine Motor Kit Motorized Bike Bicycle Well Made

Search only JRL brand name
JRL Black Spring Loaded Chain tensioner for 49cc 66cc 80cc Engine Motor Kit Motorized Bike Bicycle Well Made

Current price: 14.99 USD


Check price and availability


  • 💎EASY INSTALLATION - This derailleur pulley guide is lightweight and mini, easy to install and use.
  • 💎SAVE EFFORT - This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts.
  • 💎GOOD PERFORMANCE - Floating pulley and spring design can fit various sizes of gear, and prevent chain from skidding out from the crank.
  • 💎HIGH QUALITY - Made of high-quality aluminum alloy material, hard, stable and durable. The delicate guide wheel adopts CNC fine processing technology.
  • 💎APPLICATION - This bicycle chain tensioner suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers.
  • Suitable for people who like cycling
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • This single speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Package Include:1 x Jackshaft Kit 1 x Chain Tensioner
  • New Shifter Kit/Motorized Bike Jackshaft Kit For Regular Bicycle 66cc 80cc Gas Motorized Bicycle Manual excluded.Fits 415 Chain less noise,ride motorized bike as normal bike with pedal
  • ⦁What you get: 1 Chain Guide with 2 lower attachments, 2 Zipties ⦁Weight: 1.2 oz with zipties - Dimensions: 2.3 inches wide x 2 inches height, 1.2 inches thick.
  • ⦁Remember to Remove the Red Backing of the Tape to help prevent the Chain Guide from moving1 Year Warranty, Manufactured by 3D Printer, Made in the U.S.A.
  • ⦁Robust Design, Fits over Gear Cable, 2 Lower Attachments, Opens up So you Don't have to Remove Chain
  • New Improved Model - Allows you to Install Chain Guide without Removing Chain, Can be installed on any chain with or without Quick Chain Link Silent, Smooth Operation, Easy Install, Get Rid of Chain Slap - Fits Most Bikes Normal and Fat Bikes
  • IMPORTANT PLEASE READ: Thank for your patience We are currently fulfilling Order Ourselves and with Prime. Orders fulfilled through us with be Shipped Out Same-Day (M-Sat 12pm Pacfic) Shipping is still free with Shipping USPS First Class Mail with Tracking takes 2 to 5 days in U.S.
  • Tools Required when you install it
  • Simple, clean design, and very effective. Improve your bike's reliability!
  • cut off a little engine chain guard to make it compatible with the new spring chain tensioner if uncompatible with engine chain guard.Forget this point if your bike doesn’t get the engine chain guard;
  • Spring Chain Tensioner Kit for 2 stroke kit 48cc/66cc/80cc; Engine kit is not included! This listing is only for the chain tensioner kit.
  • Material: Steel . Two colors of item are delivered at random.
  • ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a 1 year warranty !
  • Weight: 200g. Made in Taiwan
  • Rear Sprocket: Min. 18T, Max. 25T. Applicable Dropout Width: 5-9mm
  • For single speed. ​Fit Chain Size: 1/2" x 3/32"
  • To avoid from chain drop. Material: Forged 6061 Aluminum. 11T Plastic pulley
  • Suitable for people who like cycling
  • This bike chain tensioner is lightweight and easy to install
  • The floating pulley and spring adjustment can achieve perfect chain tension
  • Made of high-quality aluminum alloy, this bicycle chain tensioner is durable
  • This single-speed converter is very suitable for the bicycle that suits for mountainous terrain
  • Shimano article number I-CTS510S
  • Shimano SPARE PART Alfine chain tensioner
  • Pivoting chain tube follows the chain line on 2 or 3 chaining setups
  • Split design fits over the gear cable and chain, no disassembly required
  • Zip-ties quickly onto a variety of chain stays
  • Plastic Guide and clamp with TPE elastomer for quiet, smooth chain retention
  • The design is beautifully simple and it just simply works.No more worry about chain tension.
  • Package Include:1 x Chain Tensioner Kit
  • Chain Tensioner Spring Loaded For 49cc 66cc 80cc Engine Motorized Bike

More Info

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