2019 Drake Smith - Please do not use or reproduce this elsewhere.  Feel free to link to it though.

K75/K100 Regular to Low Seat Conversion

(Low to regular seat conversion can be found at this link.)

K75 with Regular Seat (Corbin Dual Sport)

K75 with Low Seat

Introduction:

Converting a K75 or K100 from a regular seat to a low seat is a bit more complicated than just swapping seats.  There are quite a few different parts necessary.

SIDE NOTE: As you'll see from reading this, not only the seat but many other parts need to be replaced.  Instead of trying to source all of these parts separately you might want to try finding a person who wants to go the other way and swapping with them. This can save you time, effort and money. For example, by posting a "WTT" (Want To Trade) at:

http://www.motobrick.com/index.php?board=35.0

or:

https://advrider.com/f/forums/flea-market.14/

 

L-Jetronic Holder:

Since the low seat locking hardware mounts to the frame below the rider's seat, you need to replace the "brain box" and toolbox under the seat with one that does not have the built in toolbox like the one for the regular seat has. Part 61351459782. The top item in the diagram below:

 

Battery Covers:

You no longer need the battery side covers.

 

Tank Surround:

For a BMW low seat you will also need what I refer to as a "rubber tank surround" (BMW name is Covering Fuel Tank) and several parts that attach it to the tank. (Note that Corbin low seat setups do not use these parts.)

BMW Low Seat

Corbin Low Seat

Only for BMW low seat, not Corbin low seat: For a BMW low seat with the tank surround that is colored purple above (part 16112308660), two of the side attaching pieces that are yellow in the diagram above(16112308481) and one of the center tank attaching pieces shown in red above (16112308173.)

 

Mounting Hardware & Lock:

Unlike the regular seat that folds up, the low seat lifts off and has different mounting hardware and a different lock. (The lock can be rekeyed to match your ignition key. Click here.)

Here's a picture of the low seat mounting hardware and lock:

The long plastic part attaches across the frame under the front rider portion of the seat with four cap head screws.

The low seat lock fits into the same hole in the left side of the frame that the regular seat lock uses.

 

Tail Hooks:

The two hooks attach to the tail cowl and the rest of the hardware attaches to the frame below the front of the seat.

 

 

Locking Loop:

On the low seat you need the locking loop that mounts to the underside of the low seat:

 

Other Options:

There's a couple of other ways to make a K bike more friendly to the vertically challenged.

 

SHAVE SEAT FOAM: One way to make it easier to reach the ground with your feet without converting to a low seat is to shave some of the seat foam from the rider portion of the seat.

 

SHORTEN THE SUSPENSION: Some manufactures (like Progressive Suspension) make a K bike "short shock" that's about 1" shorter than the factory shock. This lowers the rear of a K bike by about 0.7" and you can accordingly drop the fork trees down the forks by that much.

If you get leaned over far enough on turns with shortened suspension then the pegs will scrape sooner but that's not an issue for most riders.

The bike will be a little more difficult to get up on the center stand with shortened suspension.

In theory at least, shortening the suspension affects the handling dynamics of the bike but not radically though so I don't think that that is a major safety issue.

 

2019 Drake Smith - Please do not use or reproduce this elsewhere.  Feel free to link to it though.