The Primo Pro cranks feature a 3-pc design with heat-treated chromoly crank arms that square off near the pedal bosses to prevent denting, wrap welded spindle and pedal bosses for strength, a 22mm hollow heat-treated chromoly spindle and hollow chromoly spindle bolts to help reduce weight without sacrificing strength. RHD/LHD. Note: Includes arms, spindle and bolts only. Spindle: 22mm Hollow Chromoly Spindle Bolts: 15x1mm Hollow Flush Mount (x2) Spindle Splines: 48 Sprocket Bolt: 10x1.5mm (x1) / 8x1.25mm Nano (x1) Weight: 33.2 oz (w/o BB)
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