- Flywheel Adjustable Gear Number: 8 speed. Made to work with all modern index gears. Works with most derailleurs including Shimano etc. Suits mountain bikes, hybrids, trekking, sports bikes, kids bikes etc
- Tooth ratio:11-32/34T Cassette Cogs. Fits all standard screw on type hubs
- Great for an upgrade or as a replacement for broken or worn out freewheels. Weight: 305grams (approx). Material:high tension steel, wear-resistant,nickel-plated surface, bright silver, no rust!
- Nice Performance: The shift will be smoother and quieter
- Tips: The cassette flywheel must be a cassette hub before it can be installed
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