Kyosho MZW703H Hard Caster Upper Arm Set Track Tune for MR-04  [KY-MZW703H]

Kyosho MZW703H - Hard Caster Setting Upper Arm Set (MR-04)
Price:
CAD$14.03
Brand:
Kyosho
Model:
KY-MZW703H
GTIN:
4548565473373
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $11.99 each $4.08 or 15%
3+ $11.40 each $7.90 or 19%
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Stiffer Steering with Kyosho MZW703H Upper Arm Set

The Kyosho MZW703H Hard Caster Setting Upper Arm Set fits the MR-04 chassis and is aimed at improving steering consistency and overall stability. This upgrade helps drivers refine handling when pushing lap times or running practice sessions.

Sharper Handling on the MR-04 Platform

Installing the MZW703H upper arms delivers a firmer caster setup that tightens steering response and reduces vague feel at speed. The parts are engineered to match MR-04 geometry for reliable alignment and predictable corner entry.

Built for Reliable Performance

Manufactured with durable materials, the Kyosho MZW703H Upper Arm Set resists wear from frequent track use while keeping setup changes precise. It is a straightforward upgrade for racers and hobbyists focused on consistent vehicle dynamics.
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.

Will this work with my MR-04 conversion parts?

The MZW703H is made for MR-04 geometry; most MR-04 conversions that keep the original mounting points will accept it, but measure mounting interfaces before fitting.

How does a hard caster setting change cornering?

A harder caster bias sharpens turn-in and stabilises the car mid corner, though it can feel firmer at low speed and may need steering trim adjustments.

Any setup tips after installing these arms?

Recheck toe and camber, run a few warmup laps, and adjust front toe or steering link lengths to dial in the change to your driving style.

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