Wheels Manufacturing PF30 Eccentric Bottom Bracket For 24mm Shimano Systems BLK Stroke-2.75 Box Two™ External bottom brackets

Box Two™ External bottom brackets feature cold-forged and CNC-machined alloy cups dual-labyrinth bearing covers and precision sealed bearings

tire size 29" tire width 2

Model Big Ben Size 29" Width 2

A spring upgrade that increases air-spring volume

The hands remain free during transport

Wheels Manufacturing PF30 Eccentric Bottom Bracket For 24mm Shimano Systems BLK Stroke-2.75 Box Two™ External bottom bracketsEccentric bottom bracket for adjusting chain tension on frames with vertical dropouts. Convert a PF30 frame to a single speed or fixed gear drivetrain Bottom Bracket Shell I. D. 46 BB Frame Interface PF30 BB Shell Width (mm) 73 Weight 182 Spindle Interface Type RaceFace EXI Defined Color Black