32 hole, 6-hole disc brake mount, for 12 mm thru axle, suitable for e-bikes, black aluminum hub body, ball bearing, robust steel freehub body, 27-tooth ratchet freehub system, 3 pawl arrangement Axle Thru axle 12 mm Installation Rear wheel Number of pawls 3 pcs. Type Item Design Cassette Brake mount Hub Disc - 6-hole Braking surface yes , no E-bike type ready Installation width 148 mm (Boost) Flange diameter 68 mm Freehub body Micro Spline Freehub system 27 teeth For Wheel Standard Gears 12-speed Main color black Chain line 47.4 mm Bearing type Ball bearing Material freehub body Steel Material hub body Aluminum Hub model Core DB Number of spoke holes 32 hole Spoke hole diameter for 2.00 and 2.34 mm Spoke type J-Bend Text Wheel configuration suitable for e-bike