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Discussion Starter · #1 ·
Hi all,

I am prepping a 2004 KTM 85SX for mini-moto. I put some scooter tires on the stock 17"/14" wheels to get my feet wet, but I am looking into true mini moto wheels for the future.

Has anyone here setup an 85SX with 12's or 14's? I thought about making a KTM 65SX front wheel fit the 85, but the 85 has a 17mm axle and 65 has 15mm axle (as far as I understand). So, I considered getting new bearings with the OD of the 85 hub bore and a 15mm ID, but this doesn't ensure that the caliper/rotor will line up right (and if the rotor is not aligned and offset in the wrong direction, it's an impossible task). I have access to a lathe and I can make spacers if need be. This all said, this may result in wheels that are still too narrow to fit a tire of sufficient width.

So, i'm seeking advice/experience on setting the bike up. I believe my need for help is specific to the KTM 85 as it has a different size axle than the japanese bikes...as far as I understand.

Any help appreciated!
 

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