OEM-quality chain tensioner designed for 12mm wheel axles.

Direct replacement for Derbi Senda and compatible models including Gilera SMT, RCR, Aprilia RX, and SX. Installs in place of the original with no modifications required.

• Axle diameter: 12mm
• OEM Reference: AP00H01302172 / 00H01302172
• For Derbi Senda 50cc and select Gilera and Aprilia models

Before installation, confirm your rear wheel axle diameter matches 12mm to ensure proper fitment.