Kawasaki Concours Forum

The C-14, aka Kawasaki Concours-14, the new one :) => Accessories and modifications - C14/GTR 1400 => Topic started by: Lone-Rider on July 02, 2012, 11:38:46 PM

Title: C14 Seat Mod - DIY
Post by: Lone-Rider on July 02, 2012, 11:38:46 PM
Had the C14 for almost a week and there is just something a little unsettling having that much bike held up by the tippy toes of one of my feet. Being cursed with a 28" inseam, the 32+" seat height was my only concern moving to the C14. I rode a C10 for 9 years and was able to work around, but the C14 is a little taller (and a lot more $$$) to be so precariously balanced.

Not a concern for the most part, but riding a lot in the dark and near year round, there are going to be times when I might not notice a touch of sand or a slick spot where my foot goes down. With a long ride coming up soon, and being a little cash strapped after getting the C14 (haven't sold the VFR yet) i didn't have the cas and didn't want to wait for a Sargent so I decided to cut the stock seat padding down to get my feet a little closer to the ground.

Bottom line, I think it turned out ok. Definitely lost some seat height, test ride today was totally comfortable on a 50+ mile check ride, and I can now easily get toes down on both feet, or my usual style of one foot down, all but heel touching and a little lean to one side.

Here are some pics of the process...

Step 1) Pull the Seat Cover back to expose the foam. Simple enough, pull the staples from the pan, and skin it back like a sausage.

(http://www.waynes-world.net/mcpics/c14seat-a.jpg)



Step 2) Look draw out some guides on the area to remove foam. I wanted to lower the seat as well as narrow the sides. The stock foam is THICK, lots of room to remove, it does get a little thin on the sides near the front though.

(http://www.waynes-world.net/mcpics/c14seat-b.jpg)



Step 3) Dig in! No turning back now. Start slicing, cutting, pulling, etc. I used a combination of knives, scissors, and clippers. The foam comes out easy enough, but I didn't have anything that would leave a smooth finish. Tried to keep symmetrical and then lots of small snips to smooth it out some.

(http://www.waynes-world.net/mcpics/c14seat-c.jpg)



Step 4) With the surface far from smooth, I decided to sacrifice a cotton towel as a sort of top layer to help with some of the surface 'irregularities" and smooth it out a little before putting the cover back on.

(http://www.waynes-world.net/mcpics/c14seat-d.jpg)



Final product before and after comparison. Sit much lower and the "nose" of the seat is considerably narrower. This lets me get a lot more foot on the ground. The vinyl cover was stretched a bit tighter and I trimmed about 1" of fabric around the edge when I re-stapled it. You can see a little bit of "texture" to the vinyl in the picture from the towel and less than smooth foam surface underneath, not as smooth as stock or an aftermarket, but not a total eyesore.

(http://www.waynes-world.net/mcpics/c14seat-f.jpg)


I rode it today on a 50+ mile loop around the house, mostly back roads in the foothills, a fair amount of twisties with lots of stops for putting my foot/feet down. No problems at all, no pinching or hard spots, comfortable. I think the "uneven" surface and the cotton terry towel might even help a little by letting a little more air circulate "down there" and by not having having totally smooth foam in complete contact with totally smooth vinyl in complete contact with your backside.

Heading out for a 700 mile or so trip next week, that will be the true test...

Title: Re: C14 Seat Mod - DIY
Post by: Frank ZZR on July 03, 2012, 05:38:13 AM
I did a similiar mod to my seat. However I carved away on the bottom of the foam leaving a perfectly smooth, stock looking top. 
Title: Re: C14 Seat Mod - DIY
Post by: Lone-Rider on July 03, 2012, 11:28:36 AM
I did a similiar mod to my seat. However I carved away on the bottom of the foam leaving a perfectly smooth, stock looking top.

That is an interesting idea, never woulda thought of doing that.
Title: Re: C14 Seat Mod - DIY
Post by: Conrad on July 03, 2012, 12:12:49 PM
I did a similiar mod to my seat. However I carved away on the bottom of the foam leaving a perfectly smooth, stock looking top.

That is an interesting idea, never woulda thought of doing that.

And you could have saved yourself a perfectly somewhat good cotton towel to boot!    ;)
Title: Re: C14 Seat Mod - DIY
Post by: lt1 on July 03, 2012, 12:32:15 PM
For those of you who are interested in that sort of thing, there is a lot on useful information at www. diymotorcycleseat.com.  It's helped me re-do several bike seats.
Title: Re: C14 Seat Mod - DIY
Post by: maxtog on July 03, 2012, 03:29:47 PM
What the "pros" seem to use the most are electric knives that can glide through the foam, leaving a smooth surface.  Of course, that probably makes it really easy to have an "oops" :)
Title: Re: C14 Seat Mod - DIY
Post by: jjsC6 on July 03, 2012, 04:08:10 PM
The also use devices that look like cheese graters and sort of sand away the rough edges.   I have not watched the video a couple of posts back, but it may show something like that.  I've seen a variety to of You Tubes showing various tools of the trade, some of which are home made.
Title: Re: C14 Seat Mod - DIY
Post by: ZG on July 03, 2012, 06:11:58 PM

(http://www.waynes-world.net/mcpics/c14seat-c.jpg)


 
 :o
 
Looks like Kirby got ahold of it??  :-\
Title: Re: C14 Seat Mod - DIY
Post by: EpicBadass on July 03, 2012, 07:09:40 PM
When shaping foam these are your friend:

(http://www.tvshopco.com/productsimages/electricknife_96539.jpg)
Title: Re: C14 Seat Mod - DIY
Post by: Conrad on July 04, 2012, 05:23:14 AM
When shaping foam these are your friend:

(http://www.tvshopco.com/productsimages/electricknife_96539.jpg)

Cold cuts?   ;)
Title: Re: C14 Seat Mod - DIY
Post by: EpicBadass on July 04, 2012, 09:33:29 AM
Hey I can't help that I always get hungry when I work.  :'(
Title: Re: C14 Seat Mod - DIY
Post by: maxtog on July 04, 2012, 10:11:46 AM
Hey I can't help that I always get hungry when I work.  :'(

I am a semi-vegetarian you insensitive clod!!!  :)
Title: Re: C14 Seat Mod - DIY
Post by: mvjr1904 on July 04, 2012, 10:16:40 AM
A sandwich sounds good right about now..... What were we talking about??
Title: Re: C14 Seat Mod - DIY
Post by: gPink on July 04, 2012, 10:46:56 AM
I am a semi-vegetarian you insensitive clod!!!  :)
Does a semi-vegetarian only eat plant eating animals?  :)
Title: Re: C14 Seat Mod - DIY
Post by: maxtog on July 04, 2012, 01:12:42 PM
Does a semi-vegetarian only eat plant eating animals?  :)

LOL- it is a pretty weakly defined (and debated) term.  To most (myself included), it means "will eat poultry or seafood but not meat" (meat being the flesh of a mammal).  To others it means sometimes being vegetarian (eating no animal) while other times not being so.

Anyway, back to your regularly scheduled seat conversation...

I pointed out the electric knife because several videos I had seen showed "pros" using it to carve foam quickly and accurately.  When I modified my ZRX seat, myself, I didn't know about that, and just used razor blades and diagonal knives.  The finished product only looked good because I placed a thin (1 to 1.5cm thick or so) gel pad on the area I had removed.  My only goal was to lower the seat- the gel pad just being to compensate for the large amount of foam removed.

The result was a lower seat that was comfortable and looked fine.  But as I have also pointed out in several posts- gel seats are INCREDIBLY hot in the summer and INCREDIBLY cold in the cooler months, ultimately leading me to a conclusion that I would never again use a gel type seat.
Title: Re: C14 Seat Mod - DIY
Post by: Lone-Rider on July 04, 2012, 01:57:04 PM
Did 122 miles on my modded seat today, no discomfort issues at all. Off a few times for some pictures and a quick snack. Next week will be a better test when I go 200+ miles non-stop.
Title: Re: C14 Seat Mod - DIY
Post by: rush2112 on July 09, 2012, 11:08:22 AM
Couldn't find an electric knife to save my life here in Houston!!
So a sharp bread knife worked really well.

Still not sure if I like my seat mods yet. I'm wanting to do a trip Houston to Pennsylvania soon, so that might be long enough to figure it out!!!