XRAY 301237 - X4F High-Density Foam Bumper Race Tuning  [XR-301237]

XRAY 301237 - X4F Foam Bumper For 100g Weight - Hard
Price:
AUD$36.48
Brand:
XRAY
Model:
XR-301237
Condition:
Brand New
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Front-End Protection with Tuneable Weight

The XRAY 301237 - X4F foam bumper combines dense foam durability with capacity for a 100g weight, giving a simple way to alter front mass and reduce instability on slick surfaces. It is built to withstand knocks while keeping consistent feel lap after lap.

Compatibility with Adjustable and Fixed Posts

Fitment works with both eccentric body posts and fixed body posts, giving flexibility when swapping shells or setups. The 100g integration makes it straightforward to refine balance for races or practice runs.
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.

How do I test the effect of the 100g weight?

Try short test runs, changing only the front ballast. Note changes to turn-in and mid-corner speed to decide the ideal placement and amount.

Is the bumper easy to replace after a crash?

Yes, the bumper is straightforward to remove and replace. Keep a spare on hand if you run hard tracks where impacts are likely.

Does it change body mount geometry?

It is designed to work with existing body post positions, so geometry changes are minimal. Use eccentric posts if you need finer adjustments.

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