Kyosho UMW513B 26T Idler Gear for RB5 - Track Focused [KY-UMW513B]

Kyosho UMW513B - SP Idler Gear (26T/RB5)

Price:

AUD$11.45

Brand:

Kyosho

Model:

KY-UMW513B

GTIN:

4548565455799

Condition:

Brand New

Quantity:

Quantity Discount
Unit	Price	You Save
2	$10.05 each	$2.79 or 12%
3+	$9.56 each	$5.67 or 17%

Write a review

Description
FAQ

Fit the Kyosho UMW513B to Improve RB5 Gear Stability

The Kyosho UMW513B is a 26-tooth idler that helps the RB5 deliver a steadier transfer of power. It is useful for club racers and weekend drivers aiming for more predictable drivetrain behaviour.

Why Choose This Gear

Compatibility: Specifically matched to the Kyosho RB5 chassis and its gear train layout.
Durability: Designed to withstand regular on-track use and handling stresses.
Performance: Reduces erratic gear engagement to aid consistent lap times.

Remark :

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

Is this a direct replacement for the stock idler?

Yes, it is intended as a direct swap with the stock RB5 idler, keeping factory mounting and alignment points.

Will it affect gearing ratios?

The tooth count is 26T, so it will not change the pinion-spur ratio by itself; it mainly influences mesh quality and reliability.

Any tips to avoid gear noise after install?

Set mesh carefully with paper, ensure bearings spin freely, and run the drivetrain slowly by hand to detect any binding before powering up.