You spend less time changing wheels and hit your marks every time with RFX Pro Series Rear Axle Blocks. The integrated axle holder grips one side so you can tighten with a single spanner, while tighter tolerances deliver more precise alignment than standard blocks. Features CNC 7075 aerospace aluminum construction delivers strength without adding weight to your machine CAD-designed profile reduces material where you don&';t need it for the lightest possible setup Built-in axle holder locks one side in place so you can wrench with one hand and get back on the track faster Tighter tolerances ensure improved fit and more accurate wheel alignment every adjustment Anodized finish with laser-etched RFX logo gives your swingarm a clean, finished appearance