BSA 30 Bottom Bracket flat bar- pair We equipped Sirrus X 4

We equipped Sirrus X 4

Air positive chamber with IVA (Incremental Volume Adjust) selfcontained volume spacer system

Designed with Body Geometry attributes at the forefront

we developed the S-Works 7 Vent to keep you comfortable on even the hottest days

LIGHTEST IN CLASS: Starting with premium butted and double-butted E5 alloy

BSA 30 Bottom Bracket flat bar- pair We equipped Sirrus X 4The Wheels Manufacturing BSA 30 bottom bracket threaded to 30mm is their solution to running a 30mm spindle crankset in a BSA (English) threaded frame. This bottom bracket features high quality aluminum cups and fully serviceable bearings. Enduro ABEC 3 sealed bearings are replaceable Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races provide smooth crank rotation Machined aluminum cups with durable anodized finish