seems to work just fine in a HB racing D216 Buggy. You will need a different bearing for it to mate up to the tranny shaft. https://www.amainhobbies.com/xlpower-5x10x4mm-t17-mr105zz-bearing-4-xlp70t17/p762483
got two for the price of one compared the HB product.
Centax-3 V2 Pinion Gear. This pinion gear features the same tooth pitch as the previous gears but now have an improved tooth shape for better efficiency and durability. The tooth count is ...
This is an optional Serpent Aluminum Idler Gear, ...
for the Spyder Buggy SRX 2RM 2wd 1/10, Spyder Buggy SRX-2MM 2wd 1/10, and the Spyder SC truck. This is a machined version of the 27T idler gear in top quality hard-coated ...