Arrowmax AM-601021 21T Ultra Pinion Gear Modul1 Spring Steel  [AM-601021]

Arrowmax AM-601021 Ultra Pinion 21T Modul1 (spring steel)
Price:
£8.11
Brand:
Arrowmax
Model:
AM-601021
Condition:
Brand New
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Durable Arrowmax Ultra Pinion 21T for Modul1

The Arrowmax AM-601021 Ultra Pinion 21T Modul1 is a resilient pinion crafted for modelers who demand steady, repeatable drivetrain behaviour. Its spring steel composition helps the gear cope with sustained loads while keeping accurate tooth alignment.

What Spring Steel Adds to a Pinion

Spring steel provides a blend of toughness and controlled elasticity that preserves tooth form under shock and high RPM, resulting in dependable engagement and fewer sudden failures.

Matching the 21T to Modul1 Systems

The 21-tooth option offers a practical gearing point for many Modul1 spurs, delivering a mix of usable acceleration and attainable top speed. It installs on standard Modul1 pinion shafts with routine fitting steps.

Will this pinion fit my existing Modul1 setup?

In most cases yes, the Arrowmax AM-601021 21T is designed around Modul1 standards and suits common spur gears and shafts used across many RC cars.

Is this pinion better than standard steel pins?

Spring steel typically offers improved fatigue resistance and controlled flex compared with softer steels, which helps with gear longevity under demanding use.

Any advice for changing pinion ratios?

When changing pinions, note the effect on acceleration and motor load, check motor temps during test runs, and balance spur and pinion sizes for desired performance.

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