Cyclists and bike mechanics, these VANZACK flywheels are exactly what you need for speed upgrades or replacements. You get three 12-tooth flywheels with a 34mm inner diameter - perfect for 7-speed cassette systems. The steel construction is durable and built to handle regular use without wearing out quickly. Here's the cool part about 12-tooth flywheels: they actually increase your speed compared to standard 16-tooth models. The math works out to about a 30% speed increase because of the smaller circumference - your chain has less distance to travel per pedal rotation. The threading is precise and clean, so installation is straightforward if you know your way around bike components. They rotate smoothly and provide reliable chain engagement without skipping or slipping. The brown finish looks decent and should hold up well against rust and corrosion. At about 5.3x5.3x2.65cm each, they're compact but substantial. Whether you're building up a new bike, replacing worn components, or looking for that speed advantage, these flywheels deliver solid performance. For the price per flywheel, getting three in the package is great value - you'll have spares for future use or can share with riding buddies. Just make sure they're compatible with your specific bike setup before ordering. If you're tired of sluggish acceleration or want to maximize your pedaling efficiency, upgrading to these 12-tooth flywheels can make a noticeable difference in your ride quality and speed.
Free 30-day returns 
Free 30-day returns
