Kyosho Mini-Z MR-03 Wide Front Upper Suspension Mount MR3-20/BU Technical Upgrade by 3Racing  [MR3-20/BU]

Kyosho Mini-Z MR-03 Wide Front Upper Suspension Mount - 3RACING MR3-20/BU
Price:
USD$7.00
Brand:
3Racing
Model:
MR3-20/BU
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Performance front upper mount for MR-03 chassis tuning

This front upper suspension mount is made for the Kyosho Mini-Z MR-03 platform and is catalogued as MR3-20/BU. It provides a larger lateral offset for the upper link pick-up compared with the standard MR-03 bracket, enabling more precise adjustments to front roll centre and steer responsiveness.

Used as a direct replacement for the OEM front upper mount, the component allows setup changes to be isolated to the upper link geometry without altering lower arm or hub configurations. This makes it useful when fine tuning understeer/oversteer balance for race conditions.

Fitment is a straight swap into the MR-03 upper mount points on the chassis; no conversion hardware is specified. Confirm mounting hole alignment on your variant and perform standard torque and travel checks after installation to ensure predictable behaviour on-track.

How does lateral offset affect roll centre?

Moving the upper link outwards typically raises the effective front roll centre height and alters roll stiffness distribution, which can change transient turn-in and mid-corner balance.

What setup sequence is recommended after fitting?

Start with baseline toe and camber, run progressive spring and damping tests, then trim steering rate and roll damping to find the target balance for your track lines.

Any installation cautions for racers?

Ensure screw lengths do not protrude into moving parts and verify there is no interference with servo linkages or body mounts when the steering is at full lock.