The GPM MX010 chain tension adjuster set is an aluminum 7075-T6 aftermarket accessory designed for 1/4-scale Promoto-MX motorcycle models. It provides a positive method to set and maintain chain tension on the RC dirt bike platform without altering the stock swingarm geometry.
Functionally, the adjuster replaces plastic or stamped parts at the axle plate to offer repeatable indexing for tension and small incremental changes. The set includes multiple shim offsets so you can fine-tune chain alignment and preload during setup or after drivetrain maintenance.
LOS262002A set of chain tensioner has five specifications: -.50, -.25, 0, +.25, +.50.
Use this set when you need a durable metal adjustment point and repeatable setup during drivetrain tuning or after replacing the chain or rear hub assembly.
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