XRAY 338518 18T Lightweight Pinion Gear for NT1  [XR-338518]

XRAY 338518 XCA Aluminum 7075 T6 Hardcoated Pinion Gear - 18T (1st)
Price:
AUD$33.61
Brand:
XRAY
Model:
XR-338518
Condition:
Brand New
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alt="XRAY 338518 XCA Aluminum 7075 T6 Hardcoated Pinion Gear - 18T (1st)" title="XRAY 338518 XCA Aluminum 7075 T6 Hardcoated Pinion Gear - 18T (1st)"

Race-grade 18T pinion for XRAY NT1

The XRAY 338518 pinion is crafted for the NT1 chassis from 7075 T6 aluminium with a protective hardcoat to extend working life. Its 18-tooth cutting is produced to strict tolerances to promote stable rotation and reduce drivetrain vibration.

Durable finish with racing in mind

Built for club and national level drivers, the XRAY 338518 keeps weight low while offering a coated surface that resists pitting. The result is dependable tooth engagement across long practice runs and events.

Simple fitment and clear size marking

Fitting is hassle-free thanks to compatible threading for XCA clutchbells in both standard and light variants. Tooth count is clearly marked on each gear to speed up ratio swaps trackside.

Specifications

  • Material: 7075 T6 Aluminum
  • Tooth Count: 18T
  • Compatibility: XRAY NT1
  • Coating: Hardcoated

A practical upgrade for NT1 users, the XRAY 338518 provides precise gearing and robust service for regular racing and practice sessions.
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.

Do I need a special clutchbell for this pinion?

No special clutchbell is required as long as it uses the XCA thread standard; both standard and lightweight XCA clutchbells will accept this pinion.

What signs show the hardcoat is worn?

Look for shiny spots, pits or uneven wear on the tooth faces. If meshing becomes noisy or inconsistent, inspect the pinion and replace if necessary.

Should I match pinion material to spur gear material?

Matching hardness is useful; a hardcoated aluminium pinion pairs well with a well-maintained spur. Monitor wear and adjust materials if you see uneven degradation.

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