JT RaceLite Aluminum Rear Sprocket YCRF_rain_gear 52 pitch tracks that are

52 pitch tracks that are 14" x 128" and 15" x 128"

5" outer diameter

Thermal insulation

or a scooter

Consider this

JT RaceLite Aluminum Rear Sprocket YCRF_rain_gear 52 pitch tracks that arePrecision CNC machined to JT's uncompromising standards from certified 7075 T6 Ergal aviation grade aluminum alloy, the JT RaceLite sprocket range is designed and engineered to withstand extreme pro race conditions, providing maximum strength and durability at minimum weight. FEATURES Made from the latest generation of computer design and control metal cutting equipment for maximum durability RaceLite sprockets are made of anodized 7075 T6 aluminum