• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

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449 supermoto build - rear wheel spacing and chain slap

teuchter

teuchter

Husqvarna
AA Class
So I got my front wheel issues resolved and now I'm on to the rear wheel. I have a 5" Rexfelgen rim running a 160/60/17 Bridgestone tire. As is common with SM build, I don't have much (zero) clearance between the rear tire and chain.
rear 1.JPGrear 2.JPGrear 3.JPG

So I guess my options to resolve the clearance issue are
1) Offset the rear wheel towards the brake and offset the sprocket from the hub
2) Offset the sprocket from the hub only (resulting in misalignment between front and rear sprockets)
3) Run a different tire profile
4) A combination of the above.

Anyone else put a 5" rim in a 449 swingarm and resolve the clearance?
Any advice?
 
Why did you decide to go with such an agressive setup? 4.5" with a150 stone is perfect for the 450/500 cc bikes. Anything more is just asking for headaches with no performance gain. The 150 steers quicker and sticks just as hard
 
With the chain moving along with the tire, how much rubbing is actually happening? I'm thinking with the tighter chain tension on the CTS you might get away with it on a street bike as long as the tire is not getting chewed up too badly. That said, a narrower tire as suggested above is probably the easiest fix.
 
J-train said:
Why did you decide to go with such an agressive setup? 4.5" with a150 stone is perfect for the 450/500 cc bikes. Anything more is just asking for headaches with no performance gain. The 150 steers quicker and sticks just as hard
Click to expand...
Bought the wheels used and researched before I bought them to find plenty of people with 449/511 with 5" rear installed
 
R Stephen, did you offset your rear rim? Which tires are you running?

I think the road tires are more prone to chain rub than slicks or motard tires.
 
Mike-AK said:
With the chain moving along with the tire, how much rubbing is actually happening? I'm thinking with the tighter chain tension on the CTS you might get away with it on a street bike as long as the tire is not getting chewed up too badly. That side, a narrower tire as suggested above is probably the easiest fix.
Click to expand...
The first picture above shows the chain is just contacting the tire at the widest point. I'd like about 3mm clearance minimum.
 
If it's that close tanding still it will tear that tire up quick. My setup has at least 1/4" to 3/8" clearance and the chain still hits on the tight right handers leaner over off the throttle. I am going to try and snug the chain up. It's mostly just cosmetic damage on the edge of the tire though, nothing major.
 
J-train said:
If it's that close tanding still it will tear that tire up quick. My setup has at least 1/4" to 3/8" clearance and the chain still hits on the tight right handers leaner over off the throttle. I am going to try and snug the chain up. It's mostly just cosmetic damage on the edge of the tire though, nothing major.
Click to expand...
On the bikes with CTS (449/511) the chain tension is more constant so can cope with slightly tighter clearance I reckon.
 
I have a 5in rim on my 511, way better selection of tyres (road and slicks), if it's just hitting the tyre and not the rim who cares...
 
Which tire are you running caiman? Do you have clearance issues?

PS I lived in Darwin and Perth for 8 years. Aus is awesome.
 
Running Goldpseed Ultra streets currently, not clearance issues, ran Contiattack SM's before with slight rub. If you get knocked back for chain rub then your scrutineers are doing it wrong.
 
So I changed to a 150/60R17 profile michelin 2CT on the back and now have ~6mm clearance to the chain

For future ref, 160/60 street tires are too wide for the 449/511

160 supermoto slicks tires work because they have a different profile
 
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