Race Face AR 40 Offset 27.5" Rim 32h Gray Model=Headset Lowers RF has optimized flex for

RF has optimized flex for the alloy bar

Glass filled Nylon

The ATRA (Advanced Training Resistance Aluminum) Speed Reducer has a machined aluminum bearing retainer for the best heat dissipation and strength

and ButterCups

intense sessions

Race Face AR 40 Offset 27.5" Rim 32h Gray Model=Headset Lowers RF has optimized flex forAsymmetrical rim builds up with more balanced left right spoke tension Sleeved 6061 aluminum with 4. 5mm spoke hole offset Tubeless ready with strong tire retention bead Offset: 25mm 3mm, 30 35 40mm 4. 5mm Rim tape and valves are not included TECH SPECS model AR 40 Offset size 27. 5" internal external 40 44mm hole 32h ERD 554mm color gray weight 585g