Sram -BB DUB BB30 Bottom Bracket Kids MTB Each product is designed to

Each product is designed to ensure that your bike maintains its Super Hero performance by keeping the Super-Villains "Squeaky Chain'

Gentle sweep and broad platform is designed for seated climbing

Ramping and shift positions are largely kept the same as the original manufacturer but Miche give you alternative ratios

SHIMANO XTR - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width

Sram -BB DUB BB30 Bottom Bracket Kids MTB Each product is designed toThe SRAM DUB bottom bracket series has a simple jobconnect your crankarms and protect the smooth, long lasting application of power to your drivetrain. To allow that singular focus, we've engineered the DUB spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket specification.