AR40 - Front / White / None (Front Wheel Only) MFPN=DROPOUT-19 More aggressive tread than the

More aggressive tread than the other Surly fat tire options

Bead blasted black finish with polished highlights Stem Angle (deg) -6 Length 130 Material Aluminum S

Model Pro5 Front/Rear Rear (XD) Axle/Spacing (mm) 12x142 Hole 32 Spoke J-Bend Brake 6-Bolt Color Black Weight 311g

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AR40 - Front / White / None (Front Wheel Only) MFPN=DROPOUT-19 More aggressive tread than theThe AR40 is the latest addition to the Foundation lineup. Featuring an aerodynamically optimized 40mm rim depth front and rear with a 25mm internal rim width, the AR40 is designed to deliver ultimate versatility for the road ride and racer looking for performance on and off road. Ultimate versatility for the on and off road rider with 1515g Wheelset Weight Avg. (+ 3%), Inner Rim Width: 25mm, Aero optimized tire size: 27mm, Tested and qualified to