SRAM DUB T47 Ceramic Bottom Bracket - T47 85.5mm Road Black MFPN=BAG0407 4 mm or 22

4 mm or 22

There's no need for your child to deal with complex gear changes when riding

Big steps between cogs are suited for electric-assist riding reducing double shifts and maximizing component life

Tool screws through lever pivot to remove cover plates and hollow pivot bolt

Tool-free reach adjustment for customized feel to each rider

SRAM DUB T47 Ceramic Bottom Bracket - T47 85.5mm Road Black MFPN=BAG0407 4 mm or 22SRAM DUB T47 Ceramic Bottom Bracket T47 85. 5mm Road Black. The game changing DUB family goes ceramic. While DUB has been simplifying the game eliminating compatibility frustration and confusion for years the DUB ceramic bottom bracket gives riders an additional option for even more silky smooth performance. This is a whole other level in bottom bracket friction reduction thanks to its high efficiency ceramic bearings. Whats more the DUB ceramic