Ascent Revolution Bottom Brackets - BB86 Size:SRAM GXP Size fits 20 - 25

Size fits 20 - 25 mm tyres

5 mm to ensure good support without being bulky

and the Presta and Schrader compatible ABS-1 Pro Chuck for fast

A spring loaded piston to the on/off lever for smoother shifting

Bottom bracket: T47 Asymmetric

Ascent Revolution Bottom Brackets - BB86 Size:SRAM GXP Size fits 20 - 25ETA:: 1 2 Weeks The Revolution BB86 BB provides the ultimate in press fit bottom bracket performance. A precision machined custom one piece full Aluminum 6061 T6 shell enforces the alignment between the two halves for impeccable smoothness. A specially narrowed neck helps to provide clearance for internal frame fittings and cables, improving the compatibility with more frames. We use top grade NTN 6805 LLB precision steel bearings for durability,