Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Black CheckoutTitle=SRAM Titanium T25 Rotor Bolt Kit - Silver Low-profile tread with diamond knurling

Low-profile tread with diamond knurling to reduce rolling resistance and enhance grip in dusty or loose conditions with paddle knobs providing extra braking bite

Caliper includes 4 phenolic plastic pistons

Using a proprietary natural bioremediation process

5" internal/external 25/29mm hole 28h ERD 562mm color gray weight 418g

Reba has always signified RockShox quality and performance

Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Black CheckoutTitle=SRAM Titanium T25 Rotor Bolt Kit - Silver Low-profile tread with diamond knurlingTECH SPECS Primary Color Black Headset Position Complete Steerer Tube 1 1 8 1. 5 Upper Cup 44mm S. H. I. S. ZS44 28. 6 ZS56 40 Bearing Grade Stainless Steel Lower Cup 56mm Material Aluminum Headset Type ZeroStack SHIS Lower ZS56 40 Crown Race Diameter 40mm SHIS Upper ZS44 28. 6