Product Description
"Material: Steel Spring Chain Tensioner Kit for 2 stroke kit 49cc 50cc 66cc 80cc; Engine kit is not included! This listing is only for the chain tensioner. Some frames (for example, some mountain bikes with three piece pedal cranks) don t have much room between the pedals and engine. Make sure you have at least 5/16" (8mm) of clearance. 3/8" (9.5mm) or more would be ideal. This chain tension-er is assembled by quality bolts clamp with bearing fitted roller. Simple, clean design, and very effective. Improve your bike s reliability! Replacement parts,non original. "
