C4.1 Gearing on a 7.5

[paulc]

As title gearing for a 7.5 please

[gazhillAE]

78
24

:thumbsup:

[paulc]

Cheers is a 78t standard size what comes with the b4 i don't have the kit yet !

[oddski77]

Cheers is a 78t standard size what comes with the b4 i don't have the kit yet !

The kit come with 81 spur. 78/24 = 81/25. Check http://www.gearchart.com/index.cfm?fuseaction=chart.create for a full chart plot. Aint 8,45 final output a bit low? Eg Novak rec a output at 9,5 for a 7.5T(2wd buggy).

[Richard Lowe]

It depends a lot on the brand of motor, with the kit 81t spur I'd start on about a 23t pinion (on the small side for a 7.5) and go from there :)

[tyreman]

I've got my speed passion 7.5v3 on 75/27.

[chuckie stella]

I've got my speed passion 7.5v3 on 75/27.

You're an animal though!! :woot:

Reedy - 78/23

[paulc]

I'll be using speed passion motors aswell looks like spur gears and pinions on the shopping list !

[oddski77]

What do you achieve by using a smaller(or bigger) spur, exept from a wider range to use a handful of pinions?

[chuckie stella]

What do you achieve by using a smaller(or bigger) spur, exept from a wider range to use a handful of pinions?

Weight distribution on my B4.1