It is the large gear driven by the pinion. The pinion and spur tooth counts together set the gear ratio, which affects speed and acceleration.
Spur Gears
RC spur gears to pair with your pinion and set the gear ratio.

Xray Spur Gear 81T 48dp 3-Pad Slipper Clutch #365881
SKU: 3658819,50 €In stock (4)Delivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 84T / 48
SKU: 3057848,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 84T 48dp 3-Pad Slipper Clutch #365884
SKU: 3658849,50 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 87T / 48
SKU: 3057878,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 87T 48dp 3-Pad Slipper Clutch #365887
SKU: 3658879,50 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 90T / 48
SKU: 3057908,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 93T / 48
SKU: 3057938,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 96T / 48
SKU: 3057968,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Spur Gear 99T / 48
SKU: 3057998,11 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Steel Spur Gear 54T / 48 + Composite Spur Gear Adapter
SKU: 38565427,23 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Xray Steel Spur Gear 65T / 48 + Composite Spur Gear Adapter
SKU: 38566527,23 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Frequent Questions & Answers
What does an RC spur gear do?
How do I choose a spur gear?
Match its pitch to your pinion (such as 48dp or Mod 1), then use the tooth count with the pinion to set your ratio.
When should I replace a spur gear?
Replace it if teeth are chipped, worn or stripped. A damaged spur skips under power and can wreck the pinion too.







