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Discussion Starter #1
I am looking at building my 400HO up,adding bigger tires.

How can I recalibrate the speedo/odo for larger tires? We road ride legal up here, so it is important.


Thanks,

Will
2012 Sportsman 400HO.
 

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I don't think I would worry too much about it. You would need a bigger tire than the 400 would want to turn and speeds faster than you will likely be going to make much difference. I jumped a tire size on my truck (1.2" larger diameter) and the speedo is only off by 2.5 mph at 65 mph.
This calculator might make a believer out of you. Hope it helps.
25/10-R12 vs 27/11-R12 Tire Comparison - Tire Size Calculator
 

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Discussion Starter #3 (Edited)
Perfect!! Thank you!! Wont worry about it.

Thanks for the link, keeping that!!


Thanks,

Will
2012 Sportsman 400HO.
 

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Which tires did you decide on?
 

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Discussion Starter #5
I think i am now going with 27"s. i would love a set of Outlaw Radials, but if not, Radial Reptiles will be what I go with.


Thanks,

Will
2012 Sportsman 400HO.
 
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