GPM Racing 4140 Medium Carbon Steel Front Freewheel Axle Set for Tamiya 1/10 Bbx Bb-01 (BBX021/PIN)

Precision front freewheel axle for BBX BB-01

This matched axle pair provides a direct RC-scale replacement for the front freewheel used on the TAMIYA BBX BB-01 chassis. Produced from 4140 medium carbon steel, the components are intended to alter the rotating mass at the freewheel to modify acceleration response while maintaining the original drivetrain geometry.

Supplied as two pieces, the set is aimed at hobbyists and tuners seeking a predictable inertia change at the front freewheel assembly for 1/10 scale electric vehicles. Verify compatibility with the listed model before installation and observe standard assembly checks during fitment.

Packing includes

• Front freewheel axle set - 2pcs

Compatible Models

• TAMIYA-1/10 BBX BB-01 CHASSIS-58719

How does reducing rotating mass affect acceleration?

Reducing rotating mass lowers the inertia the motor must overcome, which sharpens initial throttle response. The axle pair focuses this change at the front freewheel to influence front-end acceleration behaviour.

Are there any fitment checks recommended?

Confirm axle length and retaining features against the compatible model entry, ensure bearings and seals seat correctly, and verify freewheel operation before road testing.

What benefits does 4140 steel provide here?

4140 medium carbon steel offers a strong, fatigue-resistant material choice that balances durability with the manufacturing tolerances needed for consistent aftermarket axle replacements. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM's factory, so please allow around 14 days for dispatch.