New Corbin UniBar (unicycle handlebar)

Machining, Unicycling

I made a new handlebar for my geared KH26. I was using the KH T-bar, but it feels really flexy and it feels like the seat will eventually break from the pressure I put on it. I had already made a slightly longer and slightly wider T for it out of CroMo steel, but it was just as light as the aluminum original.

Here’s the new bar, completed and installed:

IMG_1456.JPG

New bar, 352 grams:

IMG_1452.JPG

Old bar plus the seat strengthen plate (not needed with my design):

IMG_1453.jpg

So, 150 gram savings in weight by using CroMoly steel. And it is a lot less flexy!

Building process:

1. Fabricated a lug:

IMG_1430.JPG

2. Brazed it onto the seat tube attachment:

IMG_1433.jpg

3. Not shown, brazed on the back tab for the bolt/cincher

4. Cut a T, made a fish mouth in the end, and brazed on the top:

IMG_1448.JPG

5. Inserted the 22.2 tubing into the “lug” and brazed it together. The lug adds strength; I’ve broken handlebars at that location.

Previous Post
no_thumbnail
Fire LED Cyr Wheel Pattern
Next Post
Kitty Cabinet

1
Leave a Reply

avatar
500
1 Comment threads
0 Thread replies
0 Followers
 
Most reacted comment
Hottest comment thread
1 Comment authors
Sean Recent comment authors
  Subscribe  
Notify of
Sean
Guest
Sean

I’ve got the new KH Fusion Zero seat, and I get a lot more handlebar flex with the handle attached to the seat (on a KH36). I’ve been looking for a nice way to attach the handlebar to the seatpost. Your method looks great! When you’re ready to make a few for those who lack machining and brazing skills, name your price!

Thanks for sharing your adventures with strangers.

(c) 2008-2019 Corbin Dunn

Privacy Policy

Subscribe to RSS feeds for entries.

87 queries. 0.690 seconds.

Log in