Hummingbird folding bike

Hi everyone,

Just wanted to introduce what I’ve been working on for the past year: the world’s lightest folding bike, weighing 6.5 kg. I’ve put a lot of time into this project - The Hummingbird Bike - and it’s finally going to be available to buy on Kickstarter, starting with the 11th of November!

Some info on the bike: it’s carbon fibre, will come in yellow, red, black and raw carbon fibre and will be available with 16” wheels or 20” wheels. The design is patent pending and ready for manufacturing - we’ll produce it in the UK.

Would love to hear your feedback and you can always get in touch with us on https://www.hummingbirdbike.com or on https://www.facebook.com/hummingbirdbike1/

we are live https://www.kickstarter.com/projects/261988372/hummingbird-the-worlds-lightest-folding-bike

Peter

I remember seeing your thread; very cool. Nice to see you took it to the next level. Eager to see how this will turn out for you (best of luck).

Question: will it only come as fixed gear? Or also as single speed (with two brakes)?

Also: is your name Petre or Peter? From the website (About Us page):

Fucking awesome work

Nice. That rear end doesn't look like it'd be cheap to produce.

Does it pivot on the BB? Just wondering if you'd have chain tension issues like Bromptons do (hence the tensioner).

I can only see 1 brake, how will you make it legal to sell in the uk or are they all fixed gear?

This is the closest I've come to wanting a folding bike. How much £££ do you want for one?

Yeah! 6.5kg is more like it. I love the way Bromptons fold but they're flipping heavy.

What's the back end made of? Laser cut Ti?

^^ +1

I love the way Bromptons fold but they're flipping heavy.

Pffffft

(This is rad, shame it can't be folded to reduce the length but that's patents for you I suspect)

It's the same name but here I go by Peter instead of Petre.

Thanks for all the feedback!

Great stuff. I wondered whether this would resurface after the other thread.

Awesome work. Looks good in yellow too.

+1 the comments about rear brake (internal cable routing an idea?) and also have you any concerns about wear / damage to the the ground contact points on the rear section with regular use?

Thanks, Yes the bike will have a rear brake and it will be routed internally. The contact points with the ground will have rubber patches. The bike will also have an integrated handle in the main frame for easier handling.

Peter

Like this?

we are live!
https://www.kickstarter.com/projects/261988372/hummingbird-the-worlds-lightest-folding-bike

Is there a great benefit to going for the 20"?

Yeah exactly! I went with 20 inch just to see whether people prefer it to the 16 inch, it will also offer a smoother ride with minimal weight penalty.

I'm tempted. There's quite a price difference between 16" & 20" though. My instinct is to go 20" but for the cost.

Nice mention on uncrate's latest email

Lovely work! I remember your original thread and thinking that this had legs (I also remember thinking that a carry-handle could be built nicely into the frame, you could even make it a locking point).

A quick question about adjustability. Quite a few of the riders in the video look a bit uncomfortable on the bike. How will you build adjustibility into the front end and will you stock a telescopic seatpost for really tall riders?

Looks great in the video. I've had a few Bromptons, and yeah, the drawback is they are heavy.

Hi

Yes we will ask our backers what lenght of stem they need ( S/M/L) our seatpost is 600 mm which is long enough for most riders, We had 6'2 people ride it and they loved the riding position.

@Thoma The price difference comes from the need of building extra moulds for the frame and slightly more expensive parts.

I would go for the 16" It's more compact and lighter and cheaper.

Oh I remember this - this looks so great, I'm so happy it got this far and it looks excelent!

Really really nice idea. And the 16" is same price as a brompton for what looks like a much more interesting product.

Interested in the strength of the rear end (I know nothing about these things) is it not weaker having that design than tubes?

^ I wondered why they chose a laser cut rear end over a composite swing arm, which could be made lighter and stiffer.

But it does look cool - no denying that!

What are the dimensions folded up? Looks like it would be cooler and lighter than a brompton but way way bigger?