Chromeplate Bicycle Flywheel Rear Free Wheel Replacement Accessory for Mountain Bike6 speed

Feature: 1. High strength bicycle flywheel, wear resistance, nickel plated surface, bright, no rust. 2. Technology of fine quenching, high precision positioning of tooth form, weight loss by punching holes, and variable speed positioning groove technology. 3. Nickel plating improves durability, and the drilled gear helps reduce weight. 4. Wonderful accessory for mountain bike. 5. 5 different speed for you to choose, meet your different needs. Specification: Item type: Bicycle Rear FlywheelCondition: 100percent brand newMaterial: metalColor: As picture shown Options: 6 speed, 7 speed, 8 speed, 9 speed, 10 speed6 speed flywheel size: Approx. 11.5x11.5x3.2cm4.5x4.5x1.3in7 speed flywheel size: Approx. 11.5x11.5x3.5cm4.5x4.5x1.4in8 speed flywheel size: Approx. 11.8x11.8x3.7cm4.6x4.6x1.5in9 speed flywheel size: Approx. 13x13x4cm5.1x5.1x1.6in10 speed flywheel size: Approx. 15x15x4.2cm5.9x5.9x1.7in . Package List: 1 x Bicycle FlywheelHigh strength bicycle flywheel, wear resistance, nickel plated surface, bright, no rust. Technology of fine quenching, high precision positioning of tooth form, weight loss by punching holes, and variable speed positioning groove technology. Nickel plating improves durability, and the drilled gear helps reduce weight. Wonderful accessory for mountain bike. 5 different speed for you to choose, meet your different needs.