Yokomo YOKYAS975 Big bore rear shock spring for B-MAX2/B-MAX4III series  [YOKYAS975]

Yokomo YAS-975 - Big bore shock Rear spring (Yellow) for B-MAX2/B-MAX4III series
Price:
USD$11.00
Brand:
Yokomo
Model:
YOKYAS975
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Big-bore Rear Shock Spring

This is an RC-scale replacement spring intended for the rear big-bore shocks used on Yokomo B-MAX2 and B-MAX4III chassis. The component is supplied in yellow and is specified as a big bore type to match larger shock bodies and travel profiles typical of those shock units.

Installation is straightforward for anyone familiar with shock servicing: remove the shock cap, swap the spring while keeping track of any spacers or preload collars, and reassemble to the original preload settings before making track-side adjustments. No special parts beyond standard shock service tools are required.

Functionally the spring serves as a tuning element for the rear suspension, affecting roll stiffness, rear traction, and weight transfer during cornering and acceleration. Changing to a different spring profile changes how the rear end responds to surface changes and can be used alongside shock oil and piston tuning to refine handling balance.

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.

What does "big bore" indicate for this spring?

It indicates the spring is intended for use in larger diameter shock bodies often called big-bore shocks, matching their travel and spring seat dimensions.

How will fitting this spring change handling?

Expect changes in rear roll stiffness and traction; a stiffer spring generally reduces squat and can sharpen turn-in, while a softer spring can increase rear grip but may reduce responsiveness.

Do I need special tools to install the spring?

No special tools are required beyond common shock service items such as a shock cap wrench, hex driver for removing the shock from the car, and a clean workspace to retain small parts.

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