- Integrated caliper receiver post to ensure precise measurement for true chain alignment - Ultra-slim design precision CNC’d from 6061 T-6 billet aluminum - Manufactured with tighter tolerances than O.E.M. parts - Reversible design to keep your axle adjustment bolts from extending beyond their service range - Laser engraved ‘WC’ logos - Anodized in Blue, Red, Black, Green or Silver (raw) - Made in the USA