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WR450F Sumo conversation

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As the title states I’m about to convert my 2017 WR450 into a Sumo.

before I start ordering my wheel set could someone please give me some help in regards to rear wheel/tyre size.

Im going with a 4.25”,I think a 5” with be to much. Also think that I won’t be able to run anything bigger than a 150 section tyre as the swing arm seems rather narrow compared to the KTM’s and Bergs’s Iv raced many years back,I was running a 5” wheel with 160 tyres on these.

Anyone who has a WR which can comment on tire sizes and wheel sizes and chain clearance on the tires your comments will be appreciated.

 

 

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As the title states I’m about to convert my 2017 WR450 into a Sumo.

before I start ordering my wheel set could someone please give me some help in regards to rear wheel/tyre size.

Im going with a 4.25”,I think a 5” with be to much. Also think that I won’t be able to run anything bigger than a 150 section tyre as the swing arm seems rather narrow compared to the KTM’s and Bergs’s Iv raced many years back,I was running a 5” wheel with 160 tyres on these.

Anyone who has a WR which can comment on tire sizes and wheel sizes and chain clearance on the tires your comments will be appreciated.

 

 

hi 5 inches too wide. with the smallest 160 will push the chain at least 1/2 inch aside. The speed gauge can be removed without getting the wrong codes. However, you must replace it with a distance of approximately 11 mm. I drive with 4.5 rim 150 tire.

 

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10 hours ago, bezerk72 said:

hi 5 inches too wide. with the smallest 160 will push the chain at least 1/2 inch aside. The speed gauge can be removed without getting the wrong codes. However, you must replace it with a distance of approximately 11 mm. I drive with 4.5 rim 150 tire.

 

Thanks for confirming my thoughts on this👍

What brake set up are you running upfront? The deal iv been quoted on for the wheels includes a Motomaster 320mm floating disk! From past experience 320’s are a headache,I used to have one fitted to my old race sumo along with a 6 pot Beringer calliper and to remove the wheel I used to have to undo the brake disk off the hub to get enough clearance to remove the caliper,I swapped to a 310mm which made the job of removing the front wheel a doddle! 

Im just planning on putting a braided line on the front and rear brakes and see how that goes for the time been,I think a 6 pot Beringer will be over kill for road use and the odd hill climb.

Edited by Qball1982

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