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Mini sprint gearing
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3/18/18, 12:37 AM |
#1
Mini sprint gearing
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Member
Join Date: Nov 2009 Posts: 49 |
I have an 04/06 r1 could someone give me an idea on gearing for Montpellier. i have a 14 front sprocket thank you in advance
Possible a range i want to hit putumville |
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3/19/18, 12:51 PM |
#2
Re: Mini sprint gearing
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Member
Race Count This Year: 17 Race Count Last Year: 13 Join Date: Nov 2008 Posts: 172 |
I run 13 x 51 in second gear at Montpelier, or 12.24 final. I also use 84" RR tires. If you run the 82" RR, you could get away with less gear.
Bill |
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3/19/18, 8:41 PM | #3 | |
Member
Join Date: Nov 2009 Posts: 49 |
Sweet thanks is there any way i could pull off a 14 front tooth if i matched the final gear ratio
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3/20/18, 6:09 AM |
#4
Re: Mini sprint gearing
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Member
Race Count This Year: 17 Race Count Last Year: 13 Join Date: Nov 2008 Posts: 172 |
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3/20/18, 7:20 AM | #5 | |
Member
Join Date: Nov 2009 Posts: 49 |
I looked last night and to match gwar ratio i would need a 55. So i take it that is the gear ratio to shoot for and i believe the 14 55 would be a taller gear than what you run would it hurt me
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3/20/18, 8:42 AM |
#6
Re: Mini sprint gearing
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Senior Member
Race Count This Year: 19 Race Count Last Year: 22 Join Date: Jul 2011 Posts: 2,259 |
51/13 is 3.923, 55/14 is 3.928, so numerically very close; the biggest difference is you would have to add 4 pins to your chain or suck the rear axle in to get the right chain tension. Also a tiny bit more rotating mass, not sure if it would be enough to affect acceleration, but it's there nevertheless. Depending on whether or not you already have a 51 or 55-tooth rear sprocket you may be better off to replace your front sprocket; sprockets are sort of "consumables" anyway, you should replace them periodically. Saves chains and grief in the long run...
__________________
Jim Jones
Midwest Thunder Speed2 Midget #97
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Last edited by jjones752; 3/20/18 at 8:45 AM. |
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3/20/18, 9:34 AM | #7 | |
Member
Join Date: Nov 2009 Posts: 49 |
Well i changed from the bailey gear hub to hyper i had a 52 rear sprocket but it wont fit on tbe hyper deal so i have to either buy a rear sprocket to go with my 14 front or buy a new front and rear so just trying to figure out my best option. My main track will be Montpellier but i might hit some mmsa stuff so trying to figure out how i can be close in gearing that it wont be a big change in gearing if i go hit like a 3/8 mile
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3/20/18, 2:04 PM |
#8
Re: Mini sprint gearing
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Member
Join Date: Mar 2011 Posts: 182 |
Go buy the 13 and a 51. You need to build up your gear selection anyways if you plan on traveling at all.
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3/20/18, 2:11 PM | #9 | |
Member
Join Date: Nov 2009 Posts: 49 |
Thank you guys for helping
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3/20/18, 2:12 PM | #10 | |
Member
Join Date: Nov 2009 Posts: 49 |
So do i get the 13 and than build my rear sprocets from that
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Mini sprint gearing
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