Carbon Fiber Base bolting idea

One on one · 2006-06-24, 04:57 AM

I just recently replaced the broken base on my KH saddle with a carbon fiber base. I was ready to file square holes and use carriage bolts, when I came up with another idea. I took (2) 3/4" 1/4-20 bolts and a piece of 3/16" steel rod.
I then brazed the steel rod to the 2 bolts. I made 3 of these. 1 for the back bumper and 2 for the front handle.
This assembly holds the bolts in place and keeps them from spinning when you put tighten the nuts to hold the handle and bumper in place.

The right bolt looks crooked, it's just the angle that it was photographed.

I used (4) 1/4-20 bolts and nylock nuts to hold the seat post in place. Instead of using a rubber gasket between the seat post and the cf base, I cut a rectangle from the side of a plastic bucket. The plastic gasket offers protection between the base and the post, but doesn't compress like rubber does.

litldude2 · 2006-06-24, 05:01 AM

I need some of those!
Thats a really cool idea. My carbon fiber seat is very complicated to put together since the only bolts that don't spin are the seatpost bolts so I have to be creative when putting the bumper and handle on. Lets just say I am lucky I have torn holes in the sides of my cover from riding

TheObieOne3226 · 2006-06-24, 05:29 AM

I have the old miyata double threaded U bolts on my one seat.

2006-06-24, 04:57 AM	#1
One on one Dances with roots Join Date: Mar 2004 Location: South of Boston, Massachusetts, USA Age: 55 Posts: 981	Carbon Fiber Base bolting idea I just recently replaced the broken base on my KH saddle with a carbon fiber base. I was ready to file square holes and use carriage bolts, when I came up with another idea. I took (2) 3/4" 1/4-20 bolts and a piece of 3/16" steel rod. I then brazed the steel rod to the 2 bolts. I made 3 of these. 1 for the back bumper and 2 for the front handle. This assembly holds the bolts in place and keeps them from spinning when you put tighten the nuts to hold the handle and bumper in place. The right bolt looks crooked, it's just the angle that it was photographed. I used (4) 1/4-20 bolts and nylock nuts to hold the seat post in place. Instead of using a rubber gasket between the seat post and the cf base, I cut a rectangle from the side of a plastic bucket. The plastic gasket offers protection between the base and the post, but doesn't compress like rubber does. Attached Images __________________ "That's going to end up in somebody's sig." - rob.northcott "one on one is happy, so am I!...." -CKCrowe

2006-06-24, 05:29 AM	#3
TheObieOne3226 ***** Member Join Date: Nov 2003 Location: Philadelphia Age: 26 Posts: 3,441	I have the old miyata double threaded U bolts on my one seat. __________________ SWAT Gallery SWAT webpage Arrow Racing Sixsixone "Obie is definately a trend setter, I got in to unicycling because of him, and came here because of him" - KJ-52 "try not to annoy the great Obie, for he is better than us." - Murde Mental Disclaimer: The above message was not intended to offend anyone. If you are offended I can take no responsibility for my actions because I don't feel like it. Also you are reading an internet newsgroup where not everyone will share your same views and beliefs, be able to take criticism and post/read threads at your own risk.

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2006-06-24, 05:01 AM	#2
litldude2 Registered User Join Date: Apr 2004 Posts: 1,799	I need some of those! Thats a really cool idea. My carbon fiber seat is very complicated to put together since the only bolts that don't spin are the seatpost bolts so I have to be creative when putting the bumper and handle on. Lets just say I am lucky I have torn holes in the sides of my cover from riding

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