Industry Nine Rear Bearing Kit for 1/1 MTN Micro Spline CheckoutSpec= Dropout #663 29/33mm internal/external width

29/33mm internal/external width

Fat bikes: If your fat bike has a 170/177 rear hub spacing

Streamlined design to avoid leg contact

Low-profile tread with diamond knurling to reduce rolling resistance and enhance grip in dusty or loose conditions with paddle knobs providing extra braking bite

Industry Nine Rear Bearing Kit for 1/1 MTN Micro Spline CheckoutSpec= Dropout #663 29/33mm internal/external width1 1 6 bolt and Center Lock rear replacement bearings. *Image is representative of a sample bearing kit. HG XD version includes: 2 15307A3 steel bearings, 1 15267A3 steel bearing, 1 152610A3 steel bearing MS version includes: 2 15307A3 steel bearings, 2 61802A3 steel bearings, 1 152610A3 steel bearing TECH SPECS Number MS Material Steel