Product Name: Bicycle card flywheel
Brand: Sunshine sz
Color: Silver
Speed category: 10 speed, general 20 speed road bike
Gear ratio: 11-12-13-15-17-19-21-23-25-28t
Weight: About 293 g
Description: Highway card flywheel, 10 speed 11-28t, accurate positioning, compatible with Shimano and SRAM speed change kit