XRAY 309823 T4F21 Front Bumper Weight and Foam Set  [XR-309823]

XRAY 309823 - T4F21 Balancing Bumper Weight Front 170g & Foam Bumper
Price:
CAD$95.42
Brand:
XRAY
Model:
XR-309823
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Tune Balance on Your T4F21 with the XRAY 309823 Front Weight

For drivers aiming to fine tune their XRAY T4F21 on low to medium grip asphalt, the XRAY 309823 balancing bumper weight with foam bumper is a practical upgrade. The 170g front weight replaces the stock 30g kit weight to shift more mass forward, helping the car hook up better through turn-in and giving improved stability down the straights.

How the XRAY 309823 Helps on Asphalt

This 170g bumper weight is built specifically for the T4F21 chassis and adds measurable front bite where grip is limited. By loading the front end, you get more predictable steering and reduced understeer in medium traction conditions, which is useful for racers who want tighter entry control and steadier lap times.

Fitment and Simple Swap

The XRAY 309823 is designed to fit the XRAY T4F21 exactly, so installation is a direct swap for the factory 30g bumper weight. The foam bumper included maintains front protection while the heavier weight installs quickly for an immediate handling change.
Remark :
Due to limited stock availability, please notice that some XRAY 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 fit other T4 generations?

This part is engineered for the T4F21 geometry and mounting points, so it is not guaranteed to fit earlier or different T4 variants without modification.

What driving conditions benefit most from the 170g weight?

Tracks with low to medium asphalt grip see the biggest gains; the extra front mass helps with turn-in bite and mid-corner stability rather than high grip surfaces where balance needs differ.

Any tips for installing the foam and weight?

Remove the stock 30g bumper, fit the foam around the bumper mount as shown in your manual, then secure the 170g weight using the same mounting points. Check clearance and front ride height after fitting.

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