courtesy of "J.D." - Ducati part number is
46010301A. Ducati calls it a chain guard.
Sprocket cover over chain guard.
Ducati Case Guard - Chain Guard
by David M. Young for webBikeWorld.com
The old saying, “An ounce of prevention
is worth a pound of cure” is a rather appropriate
description of this small item. However the word
“pound” should be replaced with “a couple hundred pounds
and a fistful of cash"!!! This little item can
literally save you that much.
What we have here is a stamped piece of
lightweight steel that mounts using the same two holes
and screws that hold the countershaft sprocket cover in
place. That’s it!
What it does is prevent a broken drive
chain from slamming a very sickening hole into the
backside of the engine case. While I suppose it
does happen, modern motorcycle chains rarely simply
Usually a master link from a previously
replaced drive chain will come loose because the end
plate will break and fall off allowing the master to
back out and the two ends to separate.
This will then be followed by the
engines continued rotation of the countershaft that
pulls the loose end of the chain forward and between the
case and countershaft. The chain will then whip
around the countershaft throwing itself against the
relatively soft metal of the case.
several variables, such as road speed, engine speed, age
of the bike, etc., this can lead to anything from light
scratches up to a hole big enough to insert several
fingers (not that you would want to do that…).
This is where the money is well-spent.
While a good welder could possibly patch the hole, it
may be necessary to remove the engine from the bike.
Not to mention the stray bits of metal that can find
their way into your precious motor. And we don’t
even want to talk about the further damage this can
Installation is quite simple.
Remove the countershaft cover using an Allen head driver
on the two retaining screws. The hydraulic clutch
slave cylinder should also be loosened from the case as
well to make room for the protector to slide in-between
the case and the chain.
This is also easily done using an Allen
head driver. Removal of the slave cylinder is not
necessary; all that's needed is enough movement to allow
access. Once in, use the same screws for the
countershaft cover to hold the engine case guard in
place and tighten them down then do the same for the
slave cylinder. That's it -- you're done!
And what does this little piece of
miracle steel cost? Depending on where it's
purchased, anywhere from about $15 - $30. Does
this sound worth it to you? Unfortunately, most
dealers do not have the part in stock but can order it.
You may also find that they will report it back ordered.
Specialty shops will generally keep a small supply in
stock. I found mine at
Motorsports in New Hampshire.
The only reason I can think of as to why
Ducati doesn’t include this as standard equipment is
that the occurrence is rare enough that it may not
justify the additional cost it would add to the sticker
Then again, I am not aware of any other
manufacturer including them either. But trust me.
After you hear someone describe the ordeal whose chain
let loose without a cover in place, you will want this
on your bike as soon as possible. Very cheap
insurance…hey that old saying fits as well!
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