That’s what my son said, but really it’s not any scarier than having a bar in front; I’d rather have a bar in front of me than a frontal Labarotomy 
Wait till you see it with the custom bar, I’ll be able to lower the mount ~1/2 inch so the bar end will plane level with the seat foam.
It’s a nice way to ride, I don’t feel like I’m reaching so far and it’s really powerful.
I’ve never seen one with the cover sewn to go into the groove. The KH saddles all have a groove in the foam but not in the cover.
The KH Freeride is a nice place to start because it’s like a couch. There is so much foam that you can sculpt it into whatever you want.
What would Sigmund Freud say? You’re not going to rest until you’ve made the most obscene handle possible. It would look funny with a bike bell on the end.
It seems like it would be easy to accidentally sit on the base of it after a climb.
First Flat Seat
O.K. so I’ve been following this thread and I decided to try out the seat mods. I used a new QU-AX 1 AIR. Bought right off of here! First I realized that boiling just does not work well enough for me, seat base kept going back. So I used an electric heat gun, it gets really hot! So much that you may use glass plyers to form the plastic base any way you want it to go. It is hot enough that the plastic looses it’s memory. Second, Thanks for everyone’s great input and instruction it really worked as you described and the result is worth more than the effort.
Mark
Baked, not boiled
I’m lazy, mechanically inept, and didn’t have a big pot, so I went for baking. With the oven at 225 F, I used a large C-clamp to press my seat against a board, with two small blocks at either end so that ultimately I could apply pressure past the point of flat to allow for some spring back. There was little science to my process – bake a while… Screw the c-clamp tighter… Surf the web a bit… Screw the clamp down a little more… After several successive tightening/flattenings, I had a seat that was slightly beyond flat. Once it cooled and was released from the C-clamp, it did spring back ever so slightly.
The benefit to me in this method is that it was virtually idiot-proof and required no tools more complex than a C-clamp.
@ Mark, very cool, developing new ways to achieve the flattening. I’d thought about the heat gun, but was worried about spot deformation, so did the seat come out straight? Also, what sort of rail adaptor are you using?
@ Moron, good ideas using the oven, I spent last night molding ski boot liners with the oven, but didn’t even think of cooking a seat! Take care when using the oven as you could heat up residual glue and make some fumes or a fire 
I did originally plan to try using an oven, but was worried about over-heating and thought there was nothing to lose by trying boiling water.
I did my 3rd one in the oven just a few hours ago, i had no luck boilling it but heat gun and baking have worked great for me
I flattened a Coker saddle (Velo base) using the boiling method. Removing the cover and foam was the hardest part of the process. I boiled the back for 3 minutes, stood on it for a few minutes, reversed the stiffener plate, boiled the front for 3 minutes, stood on it for a few minutes, clamped it for 10 minutes, then put it back together. Final result matched aracer’s - not perfectly flat but just right.
The flattening helped the comfort but the main issue with this seat is the shape of the foam; it’s feels too high and narrow at the waist. I’ll work on that next.
Nice to see everyone tuning their unis.
Great ride you have there lobbybopster, glad you like the result.
I did boil my seats, nearly cooking for maybe half an hour, clamped the base for several hours, flattenend the integrated plate (holes fit perfectly), reassemble everything and now have three seats slightly bent, just a little bit which seems to be just enough.
Greetings
Byc
P.s.: Bonus with the boiling method is that the base still has memory, so reheating it the same way, by boiling, will make it go back to its older form mostly.
Oh, Nurse Ben, your seat does look frightening.
Greetings
Byc
If I flattened a bunch of “new” KH Freeriders and reassembled them in “ready to ride” condition, would anyone be interested in one or more?
The plan would be to get together a group order and hopefully get a discount, then set up a production line and strip, flatten, and reglue/recover the seats. As to cost, figure on the cost of a Freeride plus shipping.
I could modify existing seats, but then you’d be without a seat for weeks and you’d be paying shipping both ways.
I’m not looking to make any money, just thinking this might be a way to get folks riding flat seats who don’t feel comfortable making their own.
So this would be for a standard KH Freeride, no mounts or “through the seat custom stuff”, just a flattened KH Freeride with stock handle, stock cover, and stock bumper. No custom stuff, I just don’t have the time.
Please don’t send me individual PMs, instead just post to this thread and start a list:
etc…
quick question on doing it on my first one the super flat I had to redrill the handles holes on the seat and the base does everyone do that?
Ben, could I get a KH street flattened?
Some of us have had to, some have not. Was yours a new style base with t-nuts welded to the internal plate? From what I have seen in this thread it seems that the old style bases, with loose carriage bolts, are more forgiving in this regard.
Martin
That would be a great service for folks, since it’s a lot of work, and most people probably would be too intimidated to try it. I’ve modded a couple of KH saddles to be flatter - one by boiling, one mostly by filling in the “valley” - and it’s really a big improvement. I hate getting on my remaining uni with the unmodded seat.
So I recommend that anybody who is interested in improving their seat comfort take Ben up on this generous offer!
Nurse Ben:
Great idea. Please add my name to your list.
Thanks,
LanceB
Nurse Ben, def. would like one. I know unicycle.com is having a sale on yellow and orange saddles KH street saddles right now, just to cut the price a little.
Okay, so a little revision:
I don’t really want to get all crazy with seat choices, so I’ll have to see how this goes, I’m mostly doing this to help out the folks who don’t feel comfortable doing it themselves, so if you have the skills then you ought to do it yourself.
First run I’d like to limit it to ten seats, so the first ten who sign up and confirm their decision will be all I do for now. I can’t afford to be stiffed, so if you tell me you are in, then you’re in.
As to seat choices, well, if you like a certain seat now, then that is probably the one you should get as a flat seat, however, in my experience some seat pads work better than others. If you have questions after reading though all the posts in this thread, then ask here and see what others think.
Currently I run a Nimbus Gel and two KH Freeride (one stock, one modified). The Nimbus Gel is not bad with a padded bike short, but it is not as comfy as the thicker stock KH Freeride foam.
In terms of cost, a Nimbus Gel seat is a better deal, esp since the KH and Nimbus use the same base, BUT keep in mind that the Nimbus cover is stapled, so you will either need an accessory aftermarket cover (more $$) or you’ll need to staple the cover back onto the seat. I’m not stapling covers, nope, ain’t gonna do it.
So for now I’d prefer to stay with KH seats: Street (gel), Flat (minimal foam), and Freeride. FYI, the KH Flat is the same as the Nimbus Narrow, the KH street is the same as the Nimbus Gel, there is no Nimbus equivallent to the KH Freeride.
Example:
Your cost is whatever the seat costs plus shipping.
[QUOTE=MuniAddict;1569816]
Yeah I used the nimby gel foam I took from my oregon and put it on my flatfish for my century ride. Surprisingly, it wasn’t noticeably any more comfortable than my standard fusion freeride saddle, which I used on my last century.
Does this imply that the flatfish will not be any easier on my testicles than the fusion freeride saddle? I can’t seem to go more than 7-10 miles without taking a short break to let the blood circulate in my crotch. I use the KH fusion freeride saddle with a couple of washers under the front seat bolts and always wear padded bike shorts. I thought that the flat seat would be a solution. I never took a 100 mile ride, but it is not uncommon for me to take a 25-30 mile ride when I’m not working and have some time. If the flatfish would solve the testicle problem, can I buy one made already. I don’t trust my technical ability to build a seat better than one that has been manufactured.