XRAY 348521 21T Aluminium Pinion for XCA Clutchbells Performance Builds  [XR-348521]

XRAY 348521 XCA Aluminum Pinion Gear - 21T (2nd) - 7075 T6 - Hard Coated
Price:
AUD$33.30
Brand:
XRAY
Model:
XR-348521
Condition:
Brand New
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Race-Grade 21T Pinion for Reliable Drive

The XRAY 348521 XCA Aluminium Pinion Gear is manufactured to tighten up drivetrain response while staying light. Built from 7075 T6 aluminium with a hard coat, this 21-tooth pinion balances strength and low mass, making it suitable for racers tuning their gear ratios for crisp acceleration.

True Running and Reduced Vibration

Precision gear cutting ensures accurate tooth form and concentricity, which lowers vibration and helps the drivetrain run smoother. The internal thread design fits both standard and lightweight XCA clutchbells for hassle-free swaps.

Quick Identification and Setup Options

Numbered tooth markings let you spot the 21T at a glance during setup changes. A range of tooth counts allows you to tailor your final drive to suit motor torque and circuit layout.

Specifications

  • Material: 7075 T6 Aluminium
  • Tooth Count: 21T
  • Compatibility: XCA Clutchbells
  • Coating: Hard Coated

A practical upgrade for competitors, the XRAY 348521 pinion brings a good mix of lightness and durability to help refine on-track performance.
Remark :
Due to limited stock availability, please notice that some XRAY items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Does this fit both lightweight and standard XCA clutchbells?

Yes. The XRAY 348521 is threaded to accept both lightweight and standard XCA clutchbells without modification.

Are there recommended motor pairings for a 21T?

A 21T pinion suits medium-torque motors where a balance of acceleration and top speed is needed. Try small steps up or down to match your motor and circuit.

How should I store spare pinions to avoid damage?

Keep pinions in a small parts box separated from heavier items to prevent nicks to the hard coat and to preserve tooth accuracy.

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