And we have zero templates or drawings: everything was done adjusting prototypes, then redoing, then again adjusting, etc., before sewing the final variant. So we’d have to spend some effort and time to make a technical drawing.

If anyone would like to help us put the design into manufacturing, we’d appreciate.

Thanks

John

Very good design

Thanks!

Can you put the Brompton in the bag without pulling out the saddle?

No. As you can see in the picture, the saddle sticks out way too much.

As I read in a forum, are you going to finally sell it?

Honestly, I still don’t know. I already have 3 full-time jobs: photography, design, journalism. Making and selling backpacks would become yet another full-time job.

We’re looking into possible solutions with Jean-Christophe.

If you have ideas, please suggest.

Doesn’t the metal and uneven distribution of bike parts poke into your back?

Yes, the bike parts do poke into the back.

However, I did my best to reduce the number of pointed parts on my Brompton. For example, I have added a plastic locknut protector for the front wheel. It converts a spear-like axle into a flat surface.

I would think it would be uncomfortable to wear the loaded backpack.

It’s not the most comfortable backpack on the planet… If used as is.

However, you can pad the back section with stuff you carry anyway. For example, I sometimes use my spare clothes, or an empty Ortlieb backpack. The contents of the Ortlieb backpack go into the bike backpack.

With padding, the backpack is surprisingly comfy.

In any case, it’s a “classical” ultralight backpack. It uses the same tips and tricks. It requires a bit of ingenuity and reuse. OK, we’ve decided to abandon the “socks in shoulder straps” concept. ;-)

Also, I’d point out that many commuters need to carry a backpack or some other bag with work or school material anyway, so they might already have a backpack full of stuff they need for work, and wouldn’t be able to carry an additional backpack for the bike.

Well, I do usually carry an additional backpack and my bike backpack rolls down so small (see pictures) and weighs so little I can always stick it inside.

That’s the main difference compared to the off-the-shelf bike-containing backpacks. Ours is light and compact.

I guess it just depends on the needs of the individual.

Absolutely.

Also, I’d point out that many commuters need to carry a backpack or some other bag with work or school material anyway, so they might already have a backpack full of stuff they need for work, and wouldn’t be able to carry an additional backpack for the bike. I guess it just depends on the needs of the individual.