Yokomo YOKYAS975 Big Bore Rear Shock Spring Compatible with B-MAX2/B-MAX4III  [YOKYAS975]

Yokomo YAS-975 - Big bore shock Rear spring (Yellow) for B-MAX2/B-MAX4III series
Price:
£8.18
Brand:
Yokomo
Model:
YOKYAS975
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Fitment and Compatibility Details

This replacement spring is designed for the rear big-bore shocks used on the Yokomo B-MAX2 and B-MAX4III chassis. It comes finished in yellow and is dimensioned to suit the larger shock bodies and travel associated with those units.

Fitment is conventional: remove the shock cap, change the spring while keeping spacers and preload collars in their original order, then reassemble and restore your previous preload before further setup work. No special hardware beyond normal shock service tools is required.

As a tuning item the spring affects rear roll stiffness, traction, and weight transfer during cornering and acceleration. Use spring swaps alongside adjustments to oil and piston selection to achieve the desired handling characteristics for your chassis.

Compatibility

  • B-MAX2
  • B-MAX4III
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 spring fit both B-MAX2 and B-MAX4III shock assemblies?

Yes. The spring is produced to match the seat dimensions and travel of the big-bore rear shocks used on both B-MAX2 and B-MAX4III models. Check physical fit when first installing to confirm alignment.

Can this spring be used on non-Yokomo big-bore shocks?

Fitment on other brands depends on seat diameter and travel. Verify that the spring seats correctly and does not bind; when in doubt compare against the OEM spring dimensions or trial-fit on a bench.

Is it acceptable to run different spring types front and rear?

Yes, mixing different spring profiles front to rear is a common method to change handling balance. Make incremental adjustments and test to find the combination that suits your driving style and track surface.

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