Not with a reinforcment post! With a reinforcment post there is less flex than a composite base.
well, those are heavy, and you need them to be custom made.
Hey I wanted to know if I welded a 1/8th sheet of cromo cut in the shape of the seat to the seat if it all work out fine.
Very true, Evan used to run his Wallis base without a bumper and completely cracked up the back. My CF bumper flexes a lot because its worn down and has a few small cracks, the deathgrip still works perfectly fine but there is a little crack where my thumb goes, the deathgrip still functions perfectly though.
Maybe an ounce…jeeze.
Holy crap an ounce that might make me… I don’t know do everything the same as before except do it while having a stronger uni.
Pardon my ignorance, but what is a reinforcement post?
Sorry in advance if this is a stupid question, (I don’t have any CF experience) but what about a fiberglass seat base? Would they flex too much, (enter the stiffener plate) because those you could make yourself, and their also super light and cheap! Please don’t all flame me at once haha!
Probably would work out fine. You would just need the metal fabrication skills to form the seat base shape and do the other metal work (welding and drilling).
Back before the CF base was available people would make stiffener plates made from either steel or aluminum to stiffen up the plastic seat bases. Basically a plate of metal cut and formed to the shape and curvature of the plastic seat base. Bolt the stiffener plate on top of the plastic base, put the foam on top, put the seat cover back on and call it good.
If someone has casting experience I wonder how a cast metal seat base would work that is in the same shape as the plastic seat base. Use the plastic base to help form the mold for the cast metal. Or cast a stiffener plate to go on top of the plastic seat base.
If you can do the work yourself or call in favors from friends you might be able to make something that is less expensive than the CF base.
Yeah there is a locla shop that might be able to do it for less than 70 so I might check them out.
John, casting steel is very difficult. I have a hard time seeing a cast steel seatbase working out well for the owner. THe seatbase would not work well for the mold since steel shrinks so dramatically during cooling.
Cast aluminum is rather brittle, as is cast iron. Casting the seatbase in general is far more work than it would be just to commission a welder to make you a reinforcement post, as Evan said. Or just anchor your seatpost closer to the handle to reduce the bending moment induced on the seatbase.
Titanium: http://www.unicyclist.com/index.php?page=gallery&g2_itemId=121975
I’m trying to get some 1/8" steel for a strengthener plate (or two) so I can start riding again. No luck today tho.
Then, when I can afford it, I will look into getting a Miyata style CF base and drill it for KH handle/bumper/post.
no. just get a KH carbon fiber seat. it will work way better than the miyata one. first of all it will all fit together.
I like my miyata seat better, but not the handle (not for street anyways)
Drilling the Miyata CF base to fit KH stuff is not a big deal.
http://www.unicyclist.com/index.php?page=gallery&g2_itemId=144084 - Like that.
Its hard to fit a KH handle on a miyata cf base. Its possible I guess but not very easy or sturdy. I think spencer tried something like that and I dont think it worked too well.
I tried that once. You can force the handle and bumper to fit (barely), but the KH seatpost-seatbase interface has significantly more curvature than the Miyata. It isn’t easy to deal with.
Someone asked about this before - the only source I know for the KH carbon base (as opposed to Gemcraft’s original Miyata style) is Municycle.com:
http://www.einradladen.net/shop/show_product.php/cPath/52/products_id/204
UDC UK has them.
where I just orderd mine from…
Peter M