AB-10280
Billet aluminum axle adjustment blocks have machined grooves for more accurate chain adjustments.
Choose 20mm axle for all RR/RS/RR-S and XTrainer or 25mm axle for 2025-on RX and RR Race, 2026-on RX, RR Race, and RR X-Pro models.
Beta Billet Red Chain Blocks
Beta Original Parts
