Sx2 Gearing

[Rob_B]

Ran my sx2 four or 5 times since new, on inspection i have noticed that it looks like a small stone may have got in and has knackered the teeth slightly on the idler gears, tried to order some but everywere out of stock of the kit ones i think 24/33. what difference would it make if i were to change these round? Would i have to change spur size pinion etc? Will be running a 5.5. Thanks

[lochness42]

Originally Posted by Rob_B

Ran my sx2 four or 5 times since new, on inspection i have noticed that it looks like a small stone may have got in and has knackered the teeth slightly on the idler gears, tried to order some but everywere out of stock of the kit ones i think 24/33. what difference would it make if i were to change these round? Would i have to change spur size pinion etc? Will be running a 5.5. Thanks

well yes you'll have to change your gearing - check your manual - there are gear charts for all internal ratio combinations. just find the same FDR that you've used before

handlingwise on Cat it shouldn't make huge difference (more on cougar)

[autonm]

Originally Posted by Rob_B

Ran my sx2 four or 5 times since new, on inspection i have noticed that it looks like a small stone may have got in and has knackered the teeth slightly on the idler gears, tried to order some but everywere out of stock of the kit ones i think 24/33. what difference would it make if i were to change these round? Would i have to change spur size pinion etc? Will be running a 5.5. Thanks

Ive had many a problem with idler gears and the metal gear too.

Ive ran several weeks indoors, idler cover always on. After 2 nights of racing the metal gear had a slight groove in it - the next week the idler itself melted.

Replaced the idler, metal idler gear and also the large spur gear.... 2 nights later the new metal idler had a slight groove in it. I checked the dust cover for debris etc - nothing.

So Im still not sure how this groove gets there - and fingers crossed then next stage is not for the plastic idler to melt again.

[Big G]

I run a 20T pinion with a 81T spur on my 5.5

[Rob_B]

Originally Posted by Big G

I run a 20T pinion with a 81T spur on my 5.5

Is that with the kit gearing aswell? thanks

[Big G]

yes 23/33