Eyecatching Bike of the Day III: Frame 22

Bamboo provides shock absorption on this fixed urban bike

by Mat Brett   March 22, 2013  

Frame 22

Bamboo is favoured more by pandas than bike builders but Yu-Yuan Lai of Taiwan has used it to provide shock absorption and reduce vibration in the Frame 22 design.

As you can see, the frame has no seat tube and the seatstays – I guess you can still call them that – are connected to the top tube via snaking strips of bamboo.

The idea is that the bamboo will flex slightly to provide light shock absorption if you can’t avoid a pothole – if you don’t see it or you can’t steer around because of other traffic. The handlebar is also bamboo, as are the tubular rims and the chainguard.

Frame 22 is on display at Taipei Cycle. I’ve not ridden the bike but if you press down on the seat you can easily see the bamboo flex. I’m not saying it’s the most sophisticated suspension system in the world, and I've no idea how it reacts when you pedal. 

The frame is a lugged design and it’s built as a singlespeed. Without a seat tube, it would be impossible to fix a front mech in place.

This is a project bike that isn’t in production.

2 user comments

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Looks to me that it'll have all the torsional stiffness of a rubber band...

The world seemed flatter years ago?

brittleware's picture

posted by brittleware [30 posts]
22nd March 2013 - 11:41

3 Likes

Burn it! Its a witch.


Suffering from Low Cadence.

bikeboy76's picture

posted by bikeboy76 [1264 posts]
22nd March 2013 - 17:03

3 Likes