Interesting 3Rensho design

[merckxman]

Never have seen anything like it. On ebay https://www.ebay.com/itm/19673069466...mis&media=COPY

[deluz]

Vertical compliance

[Louis]

Wow! Neat.

Even though it's a tiny frame, so the riders won't be very big, surely there's a weight limit. I cringe to think of the loads on the TT and seat stays.

[Bavaria Joe]

Dude must of been drunk when he designed it,

[slowpoke]

You know you've looked at enough bikes on eBay when you recognize those plants in the background and know it's Bangkok seller with the hoard of 50cm bikes.

[Louis]

Originally Posted by Bavaria Joe

Dude must of been drunk when he designed it,

Originally Posted by slowpoke

You know you've looked at enough bikes on eBay when you recognize those plants in the background and know it's Bangkok seller with the hoard of 50cm bikes.

https://youtu.be/rgc_LRjlbTU?si=rE2IoChxS2z6mBGc

(Takes a while to get to the relevant bits.)

[fignon's barber]

Originally Posted by slowpoke

You know you've looked at enough bikes on eBay when you recognize those plants in the background and know it's Bangkok seller with the hoard of 50cm bikes.

Strong entry for post of the year right there

[Bob Ross]

That looks like some steel builder tried to reverse-engineer one of those carbon Kestrel tri frames

...and by "reverse-engineer" I mean

Originally Posted by Bavaria Joe

Dude must of been drunk when he designed it,

[Mark McM]

Originally Posted by Bob Ross

That looks like some steel builder tried to reverse-engineer one of those carbon Kestrel tri frames

Interestingly, the first bicycles of the form we know today (diamond frame with rear chain drive) didn't have seat tubes. The seat tube was invented later. Here's a very early design from 1885:




If there's one thing that's true in bicycle design, it's that anything that's worth inventing is worth re-inventing.