Surly Ultra New Hub Axle Kit for 120mm Rear Fix/Free Black CheckoutTitle=Full Speed Ahead Gossamer Tandem Front Crankset - 175mm BB Shell Width (mm) 68

BB Shell Width (mm) 68 BB Shell Width (mm) 73

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Surly Ultra New Hub Axle Kit for 120mm Rear Fix/Free Black CheckoutTitle=Full Speed Ahead Gossamer Tandem Front Crankset - 175mm BB Shell Width (mm) 68Surly Ultra New Hub Axle Kit for 120mm Rear Fix Free Black. Surly Ultra New Axle Kits are for upgrading the internals of your existing Surly New hubs or replacing the internals on your Surly Ultra New hubs. Each kit contains an axle two 6901 cartridge bearings two aluminum dust shields two stainless steel cones two stainless steel 6x1mm bolts and two stainless steel bolt washers Axle is quick release and bolt on compatible; bolts included QR is NOT