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Discussion Starter #1
On my way home, I get onto the freeway by making a sharp
turn around a clover leaf onramp. This slows me down,
so I really have to punch it once I'm near the freeway entry.

It turns out, that the freeway entry at this point has two depressions in the pavement. This causes the suspension to drop, then compress all the way, then drop again.

I tried riding this route on my old Honda Shadow and he shock
of being on full throttle and the suspension bouncing up and down
caused a lot of strain on the drive line, which blew the clutch out.

I see there is a lot of interest in this forum about preserving the
belts and trany. I thought I would share this experience. Being on
full throttle with the suspension pumping up and down puts a lot
of strain on the transmition.

In my case, the clutch blew. On a Burgie, I dont know what would
be the weakest link. (?)
 

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Interesting post. Have you determined whether chain tension had anything to do with the clutch failure? Or do you think it had more to do with load/unload stresses? Any other ideas out there?

It also sounds like generally a dangerous situation no matter what type of vehicle you ride/drive. Has it been address by the highway department at all? If not, maybe you might point it out to them.

Happy motoring.

Steve
 

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Discussion Starter #3
Dangerous

This particular Shadow has a drive shaft.

The reason for the dip in the pavement is that the asphalt
seems to have settled just before a bridge. On the other
side of the bridge, the same situation, settled pavement.

So, you hit a low spot just as you're cranking up the bike
to avoid getting run over, hit the bridge (high spot), then,
drop on the other side of the bridge.
 

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Florida Bridges

If any of you ride in Florida having a drop off on both sides of a bridge is pretty much expected. 4 to 6 inches is a real shocker on your back and I would think on the bike as well. Our flat stright roads look perfectly flat but have spots that drop many inches and makes you want a better suspension on your burgman. I don't know of any transmission problems caused from this yet, but a whole lot of back aches.
 

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It really shouldn't cause any transmission problem. In most cases, you are not going to be at full throttle anyway going over a dip like that - the natural tendency is to slow down when approaching a known bump.
 
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