Yokomo Z2-30RUMWA Aluminium Wide Rear Upper Arm Mount  [Z2-30RUMWA]

Yokomo Z2-30RUMWA Aluminum rear upper arm mount (Wide) for YZ-2 DTM3/CAL3
Price:
£15.30
Brand:
Yokomo
Model:
Z2-30RUMWA
GTIN:
0639342216581
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 £23.21 each £-15.81 or -52%
3+ £20.88 each £-16.73 or -36%
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Wider Rear Upper Arm Mount for Stable Handling

The Yokomo Z2-30RUMWA is an aluminium rear upper arm mount tailored for the YZ-2 DTM3 and CAL3 chassis. Its wide form helps align the rear suspension for steadier behaviour during corner entry and mid-corner phases.

Lightweight Strength for Racing

Forged from aluminium, this mount aims to cut flex without adding unnecessary mass. The wide specification improves component alignment and delivers a more repeatable rear setup for time trials and race days.

Where It Fits and How to Use It

Fits a range of chassis including B-YZ2DTM31-1 and B-YZ2CAL31-1 along with SOR and ROR models. Installation follows the original mounting points and is suitable for anyone comfortable with basic RC assembly.

Suitable Models

  • B-YZ2DTM31-1
  • B-YZ2CAL31-1
  • SOR-010
  • ROR-010
  • ROR-010RTR
  • ROR-010RTR-1
  • SOR-020
  • SOR-020D
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.

Will this improve lap time consistency?

By reducing rear-end flex and keeping suspension geometry stable, the mount can make the car more predictable lap to lap, which helps drivers run consistent lines and braking points.

Is swapping to aluminium worth it over plastic?

Aluminium provides improved rigidity and longevity versus plastic. For racers chasing repeatable handling and reduced part wear, it is usually a worthwhile upgrade.

Any setup checks after fitting?

Recheck upper link heights and suspension droop after installing the mount and adjust camber if necessary. Small shock or anti-roll bar adjustments can help rebalance the chassis.

Will it affect tyre wear?

Improved rear stability can lead to more even tyre wear if the rest of the setup is balanced. Monitor temperatures and wear patterns to fine tune the setup after the change.

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