ST/SS wheels fit a 907ie?

discussions specific to the 907IE
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moto949
Posts: 9
Joined: Sat Jul 16, 2016 11:31 pm
model: 907 I.E.
year: 1993
Location: USA

ST/SS wheels fit a 907ie?

Post by moto949 »

Hi folks,

Anyone know if those gray 5 spoke oem Marchesinins that come with ST2, ST4 and 800SS/1000SS models will bolt onto a '93 907? I've looked closely at photos of both wheel versions, and the brake carrier holes seem to match but there's no way of my guessing about the axle diameters/lengths or spacer requirements. Any real world experience on this? The fact that I've never found a google photo of this swap makes me think it can't be done for some reason. I hope I'm wrong 'cause I like that 5 spoke look!

thanks!
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Derek
paso grand pooh-bah
Posts: 768
Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: ST/SS wheels fit a 907ie?

Post by Derek »

The ST wheels have 25mm axles back and front. I think they could be made to fit with the correct bearings and spacers where necessary. They also use a different speedo drive so you'd probably have to make same changes there, or perhaps you could use the ST drive if the ratio is the same.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)


Scotland
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ducinthebay
paso grand pooh-bah
Posts: 1323
Joined: Sat Sep 03, 2005 12:00 am
model: 750 Sport
year: 1990
Location: SF Bay Area

Re: ST/SS wheels fit a 907ie?

Post by ducinthebay »

Early SS and Monster wheels use the 17mm axles which are easy to swap out, but trying to use a wheel with a 25mm axle in a 17mm suspension will require some tricks to say the least. Not an easy swap. I just put a new Sport Classic wheel (25mm axle) on a 1990 Sport swingarm, (17mm) and there was some lathe work, and some mill work and special parts made, and a mix of parts from different years, etc. In short, if I let a shop mechanic change my tire, It is unlikely he will get it back together right. It works, and looks right on the bike, but I spent a lot of time making that damn wheel fit and line up right. Not a simple thing, but can be done.
One of the big challenges is that if you have bearing that is made for 17mm axle, the width is different than a bearing made for a 25mm axle, even though the outside diameter is the same. So the spacing in the forks or swingarm are now different. It gets complicated quickly.

Cheers, Phil
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
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