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X_Infantry
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2,934 Posts
Discussion Starter #1 (Edited)
For those wanting to put some trick wheels on there machine - There may be some issues that need some attention..

Remember this shot ? Marchesini Supermotos



Wheel Specs:

Marchesini Supermotos - 3.5 x 17 front / 5.0 x 17 rear

Pilot Power - Front 160/60ZR17 / Rear 120/70ZR17
 

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X_Infantry
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2,934 Posts
Discussion Starter #2 (Edited)
The problem when running a nice fat wheel & tire is the chain gets real close to rubbin on the tires edge.. So a spacer needs to be placed under the rear sprocket.. Here are the adjustments that had to be done to my WR for the YZ Supermotos..

1/4 Spacer Rear Sprocket - (Custom Water Jet cut aluminum spacer - Launchzone Kit)





Longer sprocket bolts were also needed for the added distance.. (Launchzone Kit)





A 1/8 spacer also needs to be placed under the Counter sprocket to keep the chain inline & safety wired on since the factory lock can not be used anymore.. (Launchzone Kit)

NEED PIC..

1/16 Spacer Left Side Axel - (Get sprocket away from swingarm welds - Launchzone Kit)





Had to grind down lower chain guide mount welds & swingarm welds a little as rear sprocket was rubbing.



And finally the chain guard itself needs to be shimmed out using standard washers due to the fact of the chain being out farther & the alignment is off on that now..
 

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Convention main man
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13,733 Posts
Excellent write up!!! This is the best one I have seen yet for how to get the spacing right for supermoto..and specifically for the 5" rear.

right now I Have the 4.25 rear wheel, I get some chain rub on the tire even with that wheel, but not much. I would like to get some marchesini wheels for my bike with at least 4.5 rear...maybe 5" at some point.

awesome pics too!!
 

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X_Infantry
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Discussion Starter #7 (Edited)
Burned ALOT of time messin with these wheels but the pay off is well worth it.. I got a unheard of deal on the Marchesini's - $1170 shipped brand new from Championsonline on Ebay... Read tons of bits & pieces about this conversion issue but nothing solid so I put this together..
Chamiponsonline said there some spacing mods that needed done but thats it for info.. Spent alot of time getting the wheels setup proper - Delt with Steve (Launchzone) for about 2 months helping each other with this wheel kit getting the sizing perfect & this is what his kit uses now.. The parts are machined perfect - he also sells a few other custom motard parts & rides a Yamaha..
 

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Convention main man
Joined
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13,733 Posts
Burned ALOT of time messin with these wheels but the pay off is well worth it.. I got a unheard of deal on the Marchesini's - $1170 shipped brand new from Championsonline on Ebay... Read tons of bits & pieces about this conversion issue but nothing solid so I put this together..
Chamiponsonline said there some spacing mods that needed done but thats it for info.. Spent alot of time getting the wheels setup proper - Delt with Steve (Launchzone) for about 2 months helping each other with this wheel kit getting the sizing perfect & this is what his kit uses now.. The parts are machined perfect - he also sells a few other custom motard parts & rides a Yamaha..

Yeah, I heard several things about the Machesini's and fitment...but no answers to it until this thread. :thumbup

And holy crap!!! that is an insane deal on those wheels!!! Do they still have them at that price???
 

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X_Infantry
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2,934 Posts
Discussion Starter #9
They were getting rid of there stock DIRT CHEAP last year probably due to the fact no one was willing to deal with the fitting issues.. Watched a set go with no bids then bid on the next set with no competition.. They are said to be about 3lbs less than Excells best spoked wheels, plus ya dont have to mess with tubes or any of that junk..
 

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Convention main man
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13,733 Posts
They were getting rid of there stock DIRT CHEAP last year probably due to the fact no one was willing to deal with the fitting issues.. Watched a set go with no bids then bid on the next set with no competition.. They are said to be about 3lbs less than Excells best spoked wheels, plus ya dont have to mess with tubes or any of that junk..
yeah, actually my main reason to get them would be the fact that they are tubeless! I had tubes, lol. I wish I could come across a deal like you did!
 

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Convention main man
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13,733 Posts
ok, cool.
 

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Last Minute Racing
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970 Posts
Hey Fozz, excellent write up! I love the wheel porn as well haha. I cant afford the marchesini wheels so ill just go with excells/talon/heavy duty spokes for now ( i know a race team guy that cna get them for me new for like 1/2 price) but my question is what width rear do i need? I have 04 yam WR 450f and i dont want to trim the tire to make fit,i dont want it rubing & dont want the chain to slap the rim and mark it all up. I was told that thats not a problem on the WR only the YZ and that a 5 inch rear & a 160 will wokr great, will i need any wheel shims to make this work? Ishould need a 3.5 front wheel as well correct? These will both be 17s. Im sure ill be talking to you ALOT more about getting this WR going.Itll mostly be a street/play bike with some track days & maybe a race here or there.

Thanks for your time
Dave
 

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X_Infantry
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2,934 Posts
Discussion Starter #14 (Edited)
Hell ya Dave - I'll help ya out as best I can.. Im really no expert but learned alot on this project build.. From the massive amount of time spent reading / talking to good racers the sizes I got should be right on..

Wheel: 3.5 x 17 front - 5.0 x 17 rear
Tire: 120/70ZR17 front - 160/60ZR17 rear

If you want a 5 in. rear w/ 160 - your gonna need the Launchzone spacers..
This is not just nessessary for Marchesini / Forged wheels its for Excells also...

Later - Mike
 

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Last Minute Racing
Joined
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970 Posts
Hell ya Dave - I'll help ya out as best I can.. Im really no expert but learned alot on this project build.. From the massive amount of time spent reading / talking to good racers the sizes I got should be right on..

Wheel: 3.5 x 17 front - 5.0 x 17 rear
Tire: 120/70ZR17 front 160/60ZR17 rear

If you want a 5 in. rear w/ 160 - your gonna need the Launchzone spacers..
This is not just nessessary for Marchesini / Forged wheels its for Excells also...

Later - Mike


160 FRONT!!!!!!!!! HOLLY COW that must be the secret i was mising LMAO :riding

Thanks for the info. Ill need alittle help on picking out a good "economy" brake setup for the front.I want a good one but cant afford the best right now.

I want to hump your Raven

Dave
 

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Last Minute Racing
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970 Posts
lol musta just been my eyes :confused: lol

I thought it was a new speed secret or something ya'll do up there in penn. :rock
 

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Convention main man
Joined
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13,733 Posts
Hey Fozz, excellent write up! I love the wheel porn as well haha. I cant afford the marchesini wheels so ill just go with excells/talon/heavy duty spokes for now ( i know a race team guy that cna get them for me new for like 1/2 price) but my question is what width rear do i need? I have 04 yam WR 450f and i dont want to trim the tire to make fit,i dont want it rubing & dont want the chain to slap the rim and mark it all up. I was told that thats not a problem on the WR only the YZ and that a 5 inch rear & a 160 will wokr great, will i need any wheel shims to make this work? Ishould need a 3.5 front wheel as well correct? These will both be 17s. Im sure ill be talking to you ALOT more about getting this WR going.Itll mostly be a street/play bike with some track days & maybe a race here or there.

Thanks for your time
Dave
dave, just be forewarned, the rear tire is probably going to get some rubbing from the chain no matter what you do. It isn't a big deal though. But you don't want it hitting the wheel. Mine rubs the tire some but not the wheel at all. It doesn't bother me though.
 

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Last Minute Racing
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970 Posts
ok thanks chad. i saw this pic on another post and looked like a neat "safety" device to gaurd against wheel rub.I need to check into those wheel spacers.Whats a set of those sell for?

 

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Convention main man
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13,733 Posts
Graves also makes a piece that is supposed to stop the rubbing.
 
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