<p>Brand: Novatec D741/D742SB</p><p>Sealed bearings: front 2 bearings, rear 4 bearings</p><p>O.L.D.: Front 100mm / Rear 135mm</p><p>Hole: 28holes</p><p>Weight: Front Hubs : ± 177g</p><p>Rear Hubs : ± 437g</p><p>Installation: Supports 8/9/10 /11S flywheel can be installed directly (8/9/10S gaskets are required).</p>