I've just recently swapped out a 4.5" rear wheel and steel swingarm from my 2000 M750. I now have an aluminum DSS with a 5.5" rear wheel and cush drive for a 5.5" wheel.
I just ordered new chain & sprockets from Jeff @ Monsterparts and I'm ready to install them. (15 front & 43 rear)
Front sprocket is the plate & bolt type with "raised" shoulder. Which side of the front sprocket will now face the engine after swapping in the 5.5" rear wheel with cush drive? The pre-swap (4.5" setup) had the "raised" shoulder facing outwards. Does the same apply with the new swap?
thanks
Flip the front sprocket and verify correct chain alignment between the front/rear sprockets. Presumably your new swingarm now has the rub blocks in the correct locations.
I used a profi laser tool for confirmation (4.5 --> 5.5 wheel on M695).
Worse case, you need to shim the front sprocket a little to get correct alignment and modify or change the chain sliders.
BK
Front sprocket with flat side out should be correct.
But.
There was the '01 M900 with 5.5 wheel and 'split offset' front sprocket.
Do you know the origin of your wheel and carrier?
mine runs fine with the 5.5 wheel on a steel swing arm and the sprocket in the original orientation. there is the tiniest bit of rub maybe, but its not even enough to mark the tyre. spose it also depends on the tyre brand and make as well. my tyre is a road pilot 2 180.
Quote from: Speeddog on July 25, 2011, 11:29:02 PM
Front sprocket with flat side out should be correct.
But.
There was the '01 M900 with 5.5 wheel and 'split offset' front sprocket.
Do you know the origin of your wheel and carrier?
I'm not sure what model year the 5.5" wheel & carrier is from, but visibly looking at the 4.5" & 5.5" carriers there is a slight difference on the mating surface as to where the sprocket lays. The inner raised shoulder protrudes thru the sprocket with the 4.5 carrier, while with the 5.5 carrier it is flush with the sprocket surface. I'm guessing this is where the offset difference is to accomodate for the increase in wheel width?
so just flip the front sprocket so the flat side is out? I'm about to do the install so I can finally get my bike on the road.
Quote from: COP TZR on July 28, 2011, 02:47:38 PM
so just flip the front sprocket so the flat side is out? I'm about to do the install so I can finally get my bike on the road.
Worked for me for an OE 4.5" to OZ 5.5" wheel swap. Front sprocket flipped to flat side out.
Verify correct chain alignment and chain slider position with the new setup!
BK
Quote from: BK_856er on July 28, 2011, 03:32:08 PM
Worked for me for an OE 4.5" to OZ 5.5" wheel swap. Front sprocket flipped to flat side out.
Verify correct chain alignment and chain slider position with the new setup!
BK
awesome. I'll be trying it out in a couple hours.
I've flipped the front sprocket so the "flat" side faces outwards. Visually it seems to line up with the rear sprocket. I haven't put a straight edge on it yet.
Now what are you supposed to do with the chain slider? Do you dremmel down the raised center ridge flat? Its not aligned with the sprockets and I figure this will pose an issue. Could it "de-rail" the chain off the sprocket if its not aligned? I might be able to back out the 3 screws that hold it to the side of the swingarm, and space it out accordingly using little washers.
Advice?
I thought maybe because you were changing swingarms your chain sliders would line up post-conversion. If that's not the case, you can try to use a different chain slider, or do like I did (suggested by Stu if I remember right) and just cut/grind off the ridge. Been working fine for me for over a year.
Everything I know about the 5.5" conversion I learned here:
http://www.ducatimonsterforum.org/index.php?topic=34503.0 (http://www.ducatimonsterforum.org/index.php?topic=34503.0)
Sounds like you're almost there! [Dolph]
BK
finally done! Swap is complete. The chain run looks pretty damn straight and aligned. Even used a flat bar to prove. I never ended grinding the ridge off the top of the slider. Chain rollers are touch the edge of it. Figure worst case scenario the chain will wear down the ridge if needed and "bed" itself in.