The extra layer of rubber is heavier, to be sure. I just figured it
would round out the stress edges more. There doesn't appear to be any
flex anywhere in the seat or handle.

You could drill a hole on the back edge and install a rubber "foot"
about 1" in diameter, sticking straight out the back. Even better would
be one on each back corner as well. This temporary fix would not affect
the saddle strength and would help immensely with UPD damage. Get the
feet at the local hardware store.

For the best protection, though, especially off-road in rocks and the
like, the back bumper would be ideal. The back bumper would cover up
any holes you have drilled, in the CF or in the leather.

Maybe your buddies at uni.com.nz would have a couple of Miyata seat
seconds kicking around that you could buy the back bumper off of.

If you have any concerns at all about fibers simply wear breathing
protection. It's not worth a lifetime of respiratory problems to mess
with.

Good luck with the rest of your project, Rowan!


--
U-Turn - Mounting a Revolution

Weep in the dojo... laugh in the battlefield.

'Strongest Coker Wheel in the World'
(http://www.unicyclist.com/gallery/albup39)

-- Dave Stockton
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