If you ride a 50cc, 70cc, 90cc, 110cc, 125cc, or even a 250cc Chinese ATV or quad (like Coolster, TaoTao, Kazuma, or Buyang), this 12mm chain axle adjuster is a must-have. It's basically a simple upgrade that makes chain adjustments way easier and keeps your ride running smoothly.

Made from solid steel, this block won't bend or corrode, and it holds your wheel perfectly in place while you tighten the chain. That means better performance, less slippage, and longer life for your chain and sprockets. The design includes a handy bolt slot so the blocks stay put even when you remove the axle – so you only need one wrench to adjust everything. Measurements: axle opening is 0.47\\\ (12mm), total length is about 4 inches. Keep your quad tuned up and ready for daily adventures without the struggle.