Any suggestions

[chadowens]

Any pinions with 3.125 shaft work with granite blx spur gear?

 

[Yas]

Any 32dp pitch pinion gear will work with the spur. The stock motor mount accepts between 10-26 teeth or so... I don't know the exact limits on the pinion sizes, so take that approximate with a pinch of salt

If you're using the stock 3200kv 3660 motor, 3mm bore pinions will not fit on the shaft as it is 5mm

 

[RCBro80]

https://www.aliexpress.com/item/400...earchweb0_0,searchweb201602_,searchweb201603_

 

[Jerry-rigged]

Look for pinions listed with a 1/8" bore, 32p. they are very common, as lots of 1/10 scale will use this size.

Amain search is odd, it will let you search for 5mm pinion, but not for 1/8" bore. But, here is their list of 32p pinions, just don't pick one of the 5mm bore ones and you will be good.
https://www.amainhobbies.com/32-pitch-mod-.8-pinion-gears-option-parts-cars-trucks/c1866

If you are not sure what tooth you need, you can get a set of gears from amazon -
13t-17t, for a Granite/Bigrock-
https://www.amazon.com/Hobbypark-Me...rds=pinion+gear+32p+set&qid=1614172255&sr=8-9

17t-21t, for the typhon/Senton -
https://www.amazon.com/Hardened-Pin...rds=pinion+gear+32p+set&qid=1614172373&sr=8-6