Birzman SRAM DUB T47 BB Socket MFPN=WH21TURRBST35XD29R ISM's Performance Recreation saddles are

ISM's Performance Recreation saddles are based on the same platform as ISM's Performance Short saddles but feature extra padding for more long-mile comfort

All new 3-speed hub

Reduces rider fatigue while simultaneously increasing raceday reliability

Rotor Mount Center Lock Freehub Body Shimano Micro Spline Primary Color Purple Hub Weight 227g Hub Spoke Type J-bend Hub Spacing 148mm Axle Type 12mm TA Hub Drilling 24H Position Rear

5 Weight 575 Actuation Wireless Remote Diameter 31

Birzman SRAM DUB T47 BB Socket MFPN=WH21TURRBST35XD29R ISM's Performance Recreation saddles areExternal bearing bottom bracket socket Constructed using CNC machined hardened steel 1 2" drive compatible Model SRAM DUB T47 BB Socket Description Bottom Bracket Socket Color Silver