Profile/Madera Race Cassette Driver Race Box Hex Lab Mini Front-Load

Box Hex Lab Mini Front-Load Stem Specification SIZE CLAMP MATERIAL PROCESS RISE STACK HEIGHT STEERER TUBE WEIGHT SIZE: 40mm CLAMP: 28

S&M will periodically change them without prior notification

Star shape wall structure for added strength

Cold forged and CNC machined

Profile/Madera Race Cassette Driver Race Box Hex Lab Mini Front-LoadSPECS: INTERNALS: 4 sealed bearings USES: On standard Profile or Madera cassette hubs with use of 12T 18T Profile cogs HUB FIT: Standard Profile or Madera cassette hubs only (not Elite hubs) CHAIN FIT: 3 32" recommended (1 8" chains will work as well) Cogs, Pawls, and Springs sold separately. This driver does not come with a lock ring. MATERIAL: Heat treated chromoly, Machined Titanium or CNC Machined Aluminum Weight: Aluminum: 3oz 85g Chromoly: 4.