Three Prime 9 Cassette 9-Speed Cogs:12-14-16-18-22-28-34-40-46 serviceability and rear engagement upgrades

serviceability and rear engagement upgrades

Two Aquaguard YKK zips on the drive side with internal velcro dividers for compartmentalization

water bottle pockets and blinker light attachment

allowing kids to revel in the joy of discovery while parents rest assured that their child is always within sight

Three Prime 9 Cassette 9-Speed Cogs:12-14-16-18-22-28-34-40-46 serviceability and rear engagement upgradesThe Box Three Prime 9 cassette is a great all around cassette option. All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. It also features weight reducing holes on the cogs. The Box Three Prime 9 offers ultra wide ratio with consistent progressions Prime 9 technology offers the same range as a 12 speed drivetrain, with fewer gears to shift through Fewer parts, reduced weight, and increased durability Cogs