I only use yeah racing pin ions because of the quality and price.
This set is an absolute MUST HAVE for people who are after more speed out of their RC car.
The tamiya XV-01 can fit a 35 tooth when using the standard slipper clutch option from tamiya.
Over 68 kph with my setup and I've only just started with my modifications.
Highly recommended products from yeah racing.
nice little case, these gears are extremely light weight yet strong, group screw is metric which is a big + threads are strong, no sign of them going to strip when tightening.
well worth the coin a must for any racer.