Yokomo BD-503D 40T diff pulley for BD7/BD5 [BD-503D]

Price:

USD$2.30

Brand:

Yokomo

Model:

BD-503D

GTIN:

3888

Not Available

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Spares / Hop-ups - Yokomo - BD7 category

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Description
FAQ

40T diff pulley overview

This is a replacement differential pulley sized for 1/10 on-road RC use, supplied as a single diff pulley intended for BD7 and BD5 related drivetrains. The part is an RC-scale accessory designed to alter ring geometry by using a larger diameter pulley, which affects differential wrap and torque transfer characteristics when tuning corner behaviour.

Compatibility is broad across Yokomo BD-series and DP/DP-DIB variants; when switching to this pulley verify mesh and bearing clearance, and confirm your spur and pinion alignment to maintain smooth operation. The component is sold as one piece and intended for hobby-grade differential tuning rather than any real vehicle application.

Packing includes

Diff Pulley - 1 pcs

Remark :

Due to limited stock availability, please notice that some Yokomo 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.

What chassis does this pulley fit?

It is compatible with BD7 and BD5 related models listed in the product notes including a range of MRTC-BD7 and DP-DIB variants; check your model code against the supported list before ordering.

How does the larger diameter affect handling?

A larger pulley changes belt/wrap and effective diff engagement geometry, which can influence mid-corner traction and throttle response; tune diff oil and preload accordingly.