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The idea behind the Spire Crank was to take the proven 2 & ½ piece system and combine it with a super tough, box-section arm design that will remain incredibly stiff and dent resistant.
After a year of testing from Bruno Hoffmann and the rest of the PRO team, the end result is a super strong and reliable crank built to shred.
Now available in a super-short 160mm version for use with shorter 12.5″-13″ chainstay frames.
Tubular heat-treated 4130 crmo arms & crmo axle
160mm, 170mm or 175mm
22mm crmo ultra hollow
Black, satin oilslick, c.p.
Strong, lightweight crank / RSD & LSD compatible / 22mm hollow heat-treated spindle / smooth and rounded ankle friendly spindle boss
901g (31.78oz) 170mm
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