D-MAX On-Road 48P 81T Spur Gear for Tuning - SG-4881S Yokomo  [SG-4881S]

Yokomo SG-4881S Precision Spur 48P 81T for Slipper
Price:
AUD$4.74
Brand:
Yokomo
Model:
SG-4881S
GTIN:
3888
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Setup and tuning spur for D-MAX dual clutch

This 48P, 81-tooth spur (SG-4881S) is manufactured for compatibility with D-MAX series dual clutch and slipper-equipped drivetrains. It serves as a precise option for adjusting gearing and verifying mesh performance on on-road cars.

Assembly tips: check pinion-to-spur mesh before final tightening, adjust slipper preload relative to your chassis baseline, and confirm clutch engagement feels consistent after installation. Proper shim placement and bearing alignment are key to preventing early failure.

Tuning impact: switching to an 81T spur alters the final drive ratio, allowing you to trade peak acceleration for higher top speed or vice versa depending on pinion selection. Many competitive drivers use 81T as a conservative baseline for slipper setups on D-MAX dual clutch units.

Compatibility

Compatible with D-MAX series dual clutch systems and slipper-equipped drivetrains as stated in the product description.
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.

How will the SG-4881S change my gearing feel?

Moving to an 81T spur reduces overall gearing compared with smaller spurs, producing a smoother delivery and potentially higher top speed depending on pinion choice. Expect a different acceleration curve that may require pinion adjustments.

Any special mesh advice for tuning runs?

Set a consistent mesh using a card or feeler, then perform short runs to detect any slipping or noise. Small mesh tweaks can noticeably affect gear engagement and overall drive feel during timed laps.

Should I alter slipper settings for performance tuning?

Yes. Because changing spur tooth count affects torque at the slipper, retune preload and engagement to suit the target handling and traction levels for your track conditions.

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