Tall bike

[derrick]

Anyone else build funny bikes? Built this a few weeks back.

I now want to have a go at a tall bike, two BMXs one on top of the other, it will not be that tall but i wanted something the kids in the street would have a go on, started putting it together today, will post pics tomorrow, Anyone else do silly stuff bike wise?

 

[raleighnut]

Custom seatpost, BTW that's as low as it goes in the frame.

 

[steveindenmark]

Is there a chance of that seatpost snapping?

 

[annedonnelly]

Not me, I'm happy with my "normal" bike, but here's some inspiration for you - Karl was manager at the bike recycling project when I started volunteering there.

 

[derrick]

Here we go. Ready for a shake down. Not sure if i am.

 

[Tripster]

Crash report required

 

[Tripster]

Oh and video to accompany it

 

[derrick]

The wife failed with the video, but did manage a photo. Was a bit twitchy at first, one of the kids rode it aswell, Good fun, A bit of a head turner.

 

[OldShep]

you need a head for heights

 

[ColinJ]

Not for me!

I have smacked my head on the road after coming off a normal bike, and I definitely wouldn't have fancied the extra distance to fall...

 

[raleighnut]

Is there a chance of that seatpost snapping?

I hope not, it's made of Aircaft Quality tubing and the post itself is 600mm long then with the top of the original seatpost welded into the tube after the guy had turned the clamp off the old seatpost (apparantly it was only glued in originally)
It was converted about 12 years ago after I decided that I was getting a bit old for Downhill/Jump riding (A crash at speed on a gravel Forestry Road in North Wales 'might' have been part of the discision)
I used it as a snow bike for years.

 

[tyred]

Not for me. I'm not good with heights. I get into a panic if I walk on thick carper.

 

[SkipdiverJohn]

you need a head for heights

And your head examining!

 

[Chris S]

Here we go. Ready for a shake down. Not sure if i am.
View attachment 566904

How did you joint the top frame's bottom bracket to the lower one's seat tube?

 

[derrick]

How did you joint the top frame's bottom bracket to the lower one's seat tube?

Its just resting on it at the moment. I ordered an arc welder a week ago, it has not arrived yet. I have made a bracket for the seat post that will be welded to the top frame. It's actually quite solid as it is with the rear stays and steerer tube.