Corbin makes aftermarket
"custom" seats for K bikes. There are many other seat
options for K bikes (Russell and Sargent for example) but
there's a lot of Corbin seats around and some US dealers
offered them as an option with new K bikes back in the day.
They aren't the most comfortable seat you can get but
they're pretty good and light years better than the BMW
stock K bike seats.
Link to Corbin for Ks:
This is probably the most
comfortable Corbin seat and usually works well on standard,
K75C, RT and LT K bikes. (They will fit of course but I
don't think they look very good on S and RS models.) The
rider area is a scooped out and distributes weight across a
fairly large area.
Sport (a.k.a. Dual Sport)
These aren't quite as comfortable
as the Dual Tour but they're not too bad. These look
good on S and RS model K bikes.
This is a solo seat and it tends
to be rather hard so I wouldn't recommend them for long
distance riding but the lines match the K bike's tail cowl
well so this might be a good seat if you only ride solo for
relatively short distances.
(no longer available from Corbin)
This is a solo seat is very
similar to the Gunfighter but the rear portion flips up to
provide seating and a backrest for a passenger. I don't know
how comfortable the rear would be a for a passenger but it
doesn't look like it's good for long rides.
(no longer available from Corbin)
This is a low style seat for Ks.
I'm pretty tall so I haven't really put any miles on one of
these but it's shaped similar to the Canyon Dual Sport so I
imagine that it's a moderately comfortable seat. From
pictures like the one above that I've found on The Internet
it doesn't look like it works with the rubber tank surround
used with BMW OEM low seats. This part:
tank (Part 16112308660)
1985 and earlier K100s:
All of the seats above fit 1986
and later K bikes. Corbin also made the Dual Tour and
Canyon Dual Sport seats for the early K100s. They are squarish at the lower rear
corner. (where the early K100
passenger handholds are) Example:
1985 Dual Tour
Hardware: All Corbin seats use the BMW factory
mounting hardware. Some of the later Ks came with seat
hardware that has rubber in the two hinge pieces. (
52532307568 & 52532307572)
If you currently have the hinges
pieces with rubber then to mount a Corbin seat you'll
need to replace those with a set of the older hinge pieces.
(52531453364 & 52531455122)
Leave the latching post off at the beginning. As you attach
the front and rear hinges to the seat leave the seat
hardware a bit loose so that you can move the seat around
until it aligns well with tank and tail cowl. You can also
loosen the two bolts that hold down the seat hinge bar:
Once you have the seat positioned
well tighten up all of the hardware. Then install the
latching post, align it and tighten it down.
Corbin seats have a thick fiberglass seat pan and therefore
are pretty heavy compared to other seats.
Upholstery shops tend to charge a lot to recover Corbin
seats. One reason for this is that Corbin uses rivets
instead of staples to attach the seat cover. It takes
more labor to drill out all of those rivets so they charge
more. Some shops might give you a break on the price
if you drill them out yourself ahead of time.
The foam Corbin uses is pretty firm so when you first sit on
the seat it might not seem that comfortable. Corbin
does this on purpose because although a cushy seat might
feel great when you first sit on it a moderately firm foam
provides better overall comfort if you are sitting on
it for a long time.
If you have a new seat then it
may take a bit of riding until the seat gets broken in.
A good way to make a Corbin seat
more comfortable for long rides is to use a sheepskin seat
pad. One of the more popular sources for them is
Height: The off the shelf Corbin seats are made for
an average sized rider (whatever that is) and generally work
well for most riders. However, Corbin does build custom
seats for taller and shorter riders. I've had Corbin seats
where the distance from the tip of the seat to the top back
varied from 14.5" to 18".
Depending upon the model of seat Corbin seats can come with
mounting for either rider or passenger Corbin backrests.
For the K1100LT Corbin makes a
nice top case backrest that's better than the rubber factory
Ride-Ins and Customer Service: Corbin does ride-ins
for custom seat builds at their Hollister, California
location. Reports on their ride-ins and other customer
service vary from being the worst in the world to top notch.
I have no experience so don't have an opinion on that.
Care & feeding:
Use your favorite plastic or leather care treatment.
Shipping: When the seat is off of the bike or
being shipped be very careful not to scrape the cover along
the bottom rim of the seat pan. It's easy to screw up a good
seat if you're not careful about this.
© 2019 Drake Smith - Please do
not use or reproduce this elsewhere. Feel free to link
to it though.