I have a 2011 Pro with a clutch kit, can, and PA head. I am thinking about doing some re-gearing just to get a little more bottom end torque (don't need it really because these sleds are responsive as is but a little extra never hurts). Anyone done anything yet? Does the clutching have to be altered if gearing is slightly changed?
Pro Gearing
- Thread starter slimboydew2
- Start date
M
Mountain800
Member
19-43 gearing, stock chain...works really good for me...I do most trees/boondocking 
Is that a big change from the stock set up or just enough to give a bit more bottom end and takes a bit away from the top end?
Im running a 19/42 with a stock chain 2.5 challenger extream and anti ratchet drivers. I haven't been able to test it in the backcountry yet, but I know I haven't lost much top end track speed. I raced my buddy on flat ground with 2012 Pro RMK with stock 20/42 gears and I took him off the line but we were neck and neck when we let off.
I have an '11 pro 155 that is completely stock other than lighter weights. I changed to 19/42 gearing so that I could gear down a little, but not have to change the chain. I have been pleased with the results. It has a little more snap on the bottom and I have not seen a big change in the top, but I also don't ride in areas that have long open trails where I would be racing. As you said these sleds already have pretty good bottom end grunt, but I think you will be happy if you gear it down.
Right on. Thanks for the tips.
2011 Pro RMK stock gearing is 20/42
D
dude
Well-known member
Thanks... Tuff.
C
crankbraker
New member
I went with the 19/43 and a CE 2.5 track on a 163. I had to change weights last year to keep the rs up I went with 60.5 and had good luck with that I ride at 7500 to 10500 ft.
M
Mountainmonster
Member
1 have a 2012 with a 174 2.5, went from 20/42 to 19/43 and no clutching changes. Holds full rpm and pulls like a tank, by far the best set up i've run to date.
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