XRay Xca Aluminium 7075 T6 Hard Coated Pinion Gear - 21T (2nd)

The XRay XR348521 XCA Aluminium 7075‑T6 Hard Coated Pinion Gear is a 21T 2nd‑gear option engineered for strength, low weight and long service life. Created on a dedicated gear machine, it features ultra‑precise tooth shaping and ultra‑true running for smooth, vibration‑free performance.

Fine internal threading allows straightforward fitment to XCA clutchbells (standard or lightweight), and the finely etched tooth count makes identification quick at the track. Offered within XRay’s XCA pinion range to help dial in the ideal gear ratio for different circuits.

Features

• 7075‑T6 aluminium construction with hard‑coated finish
• Lightweight with high durability
• Ultra‑precise tooth profile; ultra‑true, vibration‑free running
• Fine internal threading for easy installation on XCA clutchbells
• Finely etched tooth number for quick identification
• Manufactured on a specialised gear machine
• Available in popular sizes for ratio tuning

Suggested Compatibility

• XRay RX8 using XCA clutchbells (standard or lightweight versions)