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Your cart is empty. This AlveyTech chain tensioner is made to use with our 48cc - 80cc 2-stroke bicycle engine kits. The chain tensioner is an important part of the drive system and should be replaced if damaged or lost. A faulty chain tensioner can be identified by a loose chain that falls off during ride time.
Specifications:
Length: 5-1/5"
Roller diameter: 1-3/4"
Isaiah Moore
Reviewed in the United States on January 5, 2025
easy instalation, good quallity for the price.
tommy Richards
Reviewed in the United States on September 17, 2024
I have a motorized bicycle and needed to replace the one that came with the kit. This was delivered as promised, fit great, and works like a charm. Recommend it too others
Justbrigid444
Reviewed in the United States on July 24, 2022
WITH SOME MODIFICATION IT WILL WORK
RCA
Reviewed in the United States on January 13, 2022
Like how this can hold firmly and even too line up chain. Adjustment of tension is easy too do and keeps great tension.
Kam14
Reviewed in the United States on June 7, 2019
Good part, fit and works okay. Different than pictured though. As of this review the picture shows the two bolt, vertical slot, two metal pieces model but the one that came has four smaller bolts an angled slot and three metal pieces (like some other listings on Amazon). Not a big deal although the other kind is a tad easier to install (fewer parts, bigger bolt heads, all use the same socket size).
Andrew
Reviewed in the United States on December 8, 2017
Works great
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