How hot is too hot for CF

[Roaduser]

certainly does look blocked..

from all the shots of that exhaust posted the exhaust looks like a free standing item with no obvious mounting points to be seem, looks really good. i like it a lot!! 

[DucNaked]

It looks like from the back you can see the blinkers just fine. 
Ducati Monster 1100 Schollis Interpretation der neuen Monster

[Roaduser]

in that video the can appears to be spaced further away from the underseat. either way, its beautiful and you'll make ot work im sure...

and DAMN that is a HUGE number plate!!!

[antibling]

The weak part of CF products is the epoxy resin.  Many of them begin to distort around 200F.  Some HT prepregs claim they can go to ~200C.  Your can will be fine as long as the packing is ok.  When it blows out (after many miles) and the hot exhaust hits the inside of the can, it will damage it.  Probably will start at the inboard end, and you may be able to chop the damaged part off and keep riding.  For now, enjoy it.   

it isn't so much the absolute heat, as it is the environment overall.  resin systems and the fibers can take the heat alone, decades of spacecraft are proof of that (thought not quite to 200C).  they can take the contact with hydrocarbons at ambient temps or a carbon rear tire hugger/chain guard wouldn't last that long.  However, heat it up, pump hot caustic exhaust gasses through it and problems arise. 

both the resin and the fibers individually are combustible, it's only a matter of time before the sleeve corrodes from the inside out if not protected.  i've seen pictures, read threads, about them cracking in half around the ring clamp that attaches it to the subframe which makes sense as it's a high stress region.  making sure the packing never lets the gasses come in contact with the CF is key, but not an easy thing to check as exhaust pulses will scour it out of one section and another may look untouched.  it is a wonder to me that it's not standard procedure to line the inside with a thin sheet of aluminum.

muffler casing really isn't an appropriate use of CF IMO, but they sure are pretty... (eyeballing the CF arrow pipes on my bike with uneasy lust...)

[battlecry]

CF corrodes aluminum.  One practice is to bond a fiberglass layer to the CF to insulate the two incompatible materials.  You can use an inspection mirror and a small streamlight flashlight to inspect the packing through the interior grille tube on some slipons. 

[DucNaked]

Thanks for all the replies and info.