Author Topic: Supermoto Gearing  (Read 376 times)

seabeegt

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Supermoto Gearing
« on: April 06, 2014, 01:57:03 am »
So right now I'm running 15/42 with 17" wheels and I lost some top end from switching over from the enduro setup. I was running the exact same gearing with 18/21" wheels. Anyone know where I can get a smaller rear sprocket that'll fit the 690 cush hub?
Shay with tha guage and Nilla with tha nine.... word to your mutha.

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coarsegoldkid

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Re: Supermoto Gearing
« Reply #1 on: April 06, 2014, 11:41:11 am »
How much top end did you lose.  And do you know how the SMC is geared?

seabeegt

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Re: Supermoto Gearing
« Reply #2 on: April 08, 2014, 05:26:57 am »
 hmmmm. I dunno. I used to cruise 80 mph at aobut 5k and now it takes 6k to get that outta her. Suppose I didn't lose too much. Just feels like she has to work harder to do the job she's used to doing. Figures about right. Runnin' the same pace, just with shorter legs.  :-\
Shay with tha guage and Nilla with tha nine.... word to your mutha.

Guymcfly

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Re: Supermoto Gearing
« Reply #3 on: October 17, 2014, 10:05:23 am »
Did you end up finding your 42? If not Sidewinder do custom size sprockets.

Bartlioni

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Re: Supermoto Gearing
« Reply #4 on: October 17, 2014, 02:52:13 pm »
Interesting.  I'm puzzled.  At the risk of asking a dumb question, did you reset your speedo for the new tire / rim combination?  A 15/42 setup should feel like you gave up first gear and added a 'seventh' gear based on the shift points.  I'm running 16/45 which is the same gear ratio as you're running.  My minimum speed in sixth gear before she starts to bog down is around 55mph.  Yours should be about the same although I'm beginning to suspect the shift points may not be identical although the ratios are the same.  I'll be doing some experiments to see if my hunch is correct in the not-so-distant future.  (I'm going to try the 15/42 combination and see if there's a difference in the shift points from the 16/45.)  My hunch is that there is, but I have no evidence to back it up yet.  Just a theory) 
- Bartlioni

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thedubsack85

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Re: Supermoto Gearing
« Reply #5 on: October 21, 2015, 12:28:53 pm »
15/42 is stock gearing. it's where I'm at right now and i like it but i might go 16/42 like above and a few of my friends have.. we shall see!