There's no quick way to remove the rubber bungy cords afaik. But it's quick and easy to pull them under the middle bars, and up onto the last one. Then it's out of the way when you don't need it.

My kickstand is behaving the same way, the bike seems to lean too much and you can see the flat plate at the end of the kickstand isn't flat against the ground. But the bike doesn't fall over, so I haven't done anything about it.

The wide wheel configuration is stock from R&M, but was perhaps not tested well enough. Like CEBEP I use a racktop bag which does not interfere with the wide stock wheels. But I think I'd like to swap to bigger radius wheels like Jipe has, for easier rolling on not perfect surfaces. I will also remove the side spacers and reinstall with shorter bolts, because I see one of my bolts has also bent slightly, and the bike has not been handled by anyone but myself. This will likely make it less stable side-to-side when rolling, but I guess that's not a major problem or Jipe would have noticed it.

This looks like a stock stainless bolt with a button head. I would take the bolt to a hardware vendor and get an identical one. Button heads may be less popular in some countries than other and longer bolts too. However, I remember Istanbul having a neighborhood of hardware vendors with an abundance of stock. (I still have some stuff I bought there in my basement.) If you cannot get the button head, get hexagonal or socket. A straightened out bolt should be OK for a while, just run a nut several times over, and best a die, to make sure you do not screw a damaged thread back in.

I had few shorter M6 bolts and:https://cimg3.ibsrv.net/gimg/bikefor...3126b9e5f.jpeg
https://cimg4.ibsrv.net/gimg/bikefor...7019720b2.jpeg
https://cimg8.ibsrv.net/gimg/bikefor...f1b6f8f07.jpeg

to show the difference:

https://cimg9.ibsrv.net/gimg/bikefor...7b7270941.jpeg

Looks a alot cleaner but definitely less stable. Even stationary tends to lean on the right. Wheeling will probably depend a lot on the surface.

https://cimg6.ibsrv.net/gimg/bikefor...39e36e52d.jpeg


like this? Not gonna work for my bag as the rear end needs to be flat to the rack. Are these bungee cords are useful anyways? Don’t look like they are. Ones on my Brompton are really useful, not sure about these on Birdy.

I could order M6x80mm stainless bolts from the internet, so all good. Thanks.

Can’t go any higher than that, can I?


https://cimg8.ibsrv.net/gimg/bikefor...756d4a442.jpeg

Pull it under all the 3 middle bars. You could even give the "handle" a half twist so it attaches upside-down at the end, then it's very low profile.

https://cimg1.ibsrv.net/gimg/bikefor...4ff5ac0976.jpg

I find it useful when I want to go light, and only bring a jacket, for example.

Not if you value your safety, no :)

It may be possible to use an extender like this: https://duckduckgo.com/?t=ffab&q=fol...ages&ia=images
or riser handlebars like this: https://duckduckgo.com/?t=ffab&q=ris...ages&ia=images

This helped, thanks a lot.
Rack is rated at 15kgs which is pretty awesome as Brompton’s is rated at 10kg max.

I also had some shorter bolts lying around, and did the same mod. We'll see how it works out. At least there is less chance of damaging the rack threads or breaking a bolt now.

I’m not rolling it around much since I use bikes for fun and recreation only. So should probably work for me. And let’s admit it, with this setup the rack and the bike looks a lot sexier!

If you will decide to leave it as is, it would make sense to use the blue thread locker on the bolt threads. At least this was applied to the stock bolts.

My Birdy had also the Minoura kickstand that I dismounted, I do not use a kickstand.

I also permanently removed the rubber bungy cords of the R&M rack I have now. I never had the original easy wheels with extenders (they aren't delivered with the rack and I prefer rear pannier with the load placed lower to a top bag) so I cannot compare the lateral stability

The H&H titanium rack you see on the pictures is crap, it has plastic bushes that do not last and a lot of lateral play, the two pieces titanium bolts with a very short M3 thread do not remain tightened, its a bad design, one more Chinese expensive crap component to absolutely avoid.

I bought it from Boxbike in Berlin about one year ago, its still under warranty but the shop doesn't honor the legal EU 2 year warranty, bad product sold by a bad bicycle shop!

I wander how did you manage to remove them unless you cut them off. I didn’t find an easy way to do it.

I’m normally against any design changes to the bike as I assume designers had a reason for everything they do. Same goes for awkwardly placed wheels on the Brompton rack, one on the inside and another on the outside. There is a reason for that so I didn’t change it. I believe designers put the spacers on the rack for a reason and since they don’t interfere with my bag I think I’ll keep them once I receive replacement bolts.

You want the roller wheels to be placed symmetrically with respect to the center of mass of the folded bike. That center shifts to the right of the drive side when you fold over the top of Brompton, hence the asymmetry the roller wheels on the Brompton rack. I moved these wheels even more in direction of the drive side, than in the original design, for even more symmetric placement relative to the folded center of mass and a greater stability of the rolled folded bike.

Exactly

The shape of the slot in the plastic grip allow the straps to come out without cutting them.

For the easy wheels, as said, my Birdy had no factory mounted rack.

I first installed the H&H titanium rack to add less weight.

When this rack failed, I bought a R&M rack that comes without the R&M easy wheels. Those easy wheels (which are I think aggressive inline skate wheels)+bolt+spacer are sold separately as a kit that I didn't bought because I wanted to keep using rear pannier.

I wander if anyone carries air pump inside the seatpost? Is seatpost bung strong enough to keep the pump from falling out? I’m not talking about SKS Spaero Sport Pump for Birdy but any pump which can fit.

I remember some Dahon bikes have these seat post pumps but I’ve never seen one for Birdy. Anyway it’s unnecessary weight that you’re not going to use often.

I didn’t mean seatpost pump, which is probably what you’ve meant. I meant to put a pump inside the seatpost, which for me is the most rational place to put it if I need to carry one with me.

I have my pump inside of the stem of both Birdy, its a Lezyne Carbon Road Drive medium.

Did you put any rubber rings on the pump to avoid rattling? I wander of the plastic bung is strong enough to keep the pump from falling out.

Could someone advise how many teeth is second and third smallest sprocket on stock Sunrace 10s 9-32 cassette? Smallest is 9t, I’m wandering how many teeth are next two. Or is there a way I can understand it from looking at the cassette?

Often one of the teeth has the number of teeth on that cog pressed into it. If not, just pick a tooth with any kind of feature you recognise, and count from there. It's likely 9-10-11. Any bigger jumps would be huge. The next one may be 13.

The spacing of the cogs of the Sunrace cassettes are very good:
- Sunrace Cassette CSSSO 10s 9-32t: 9-10-11-13-15-18-21-24-28-32.
- Sunrace Cassette CSSXO 11s 9-36t: 9-10-11-13-15-18-21-24-28-32-36

The 3T bailout cassette is also nice: 3T bailout 11s 9-32t: 9-10-11-12-13-15-17-19-22-26-32

The SRAM 10-36 with a slightly bigger chainring is very good too: 12s 10-36t: 10-11-12-13-15-17-19-21-24-28-32-36

I changed the chainring to 50t because I found the gear inches slightly too long with the Big Apple 50-355 that have a bigger overall diameter than the 40x355 Marathon Racer. I also sometime had the chain off the chainring with the original chainring which has no narrow-wide teeth Ichain was between the chainring and plastic protection). It completely disappeared with the Garbaruk 50t narrow-wide I have now.

Hi :) Since birdy-freunde is gone this seems to be the best place for birdy-related info and I´d like to contribute.
After much deliberation I bought a R&M Birdy Rohloff with 10 degree "comfort stem" a few months ago. It has since been my "daily driver" during my work week and I want to tell you about it.

https://cimg8.ibsrv.net/gimg/bikefor...28eeb070c.jpeg

A few things are modded:
- Hard Elastomers front & rear
- Saddle, bell, smartphone mount
- 80mm Wheels from old inline skates
- 8l cooling bag on the rear rack, containing a very small folded backpack and either rain clothes, cold drinks and a cooling pack or hot food, depending on the occasion (permanently attached)
- R&M "Carry Bag" on the top tube, containing a multi tool, small lock and puncture sealing kit (permanently attached)
- Mini pump with integrated pressure gauge under the rear rack (permanently attached)
- H&H Brompton bag adapter for Birdy
- Brompton luggage block
- Canoo handle to pull the bike while folded (attached to H&H adapter)
- 23l Brompton "Metro Messenger Bag L"

The most important reason for these mods was usability. All I need for 5 days has to fit on the bike, I travel by train a lot and do not like to carry a backpack while on the bike.

https://cimg9.ibsrv.net/gimg/bikefor...cf9de1750.jpeg


Everything but the Brompton bag can stay on the bike while folded.
The bike is still small enough to fit inside the Carry Bag cover. This is important for taking the bike inside "unfriendly" places (which has happened to me 3 times so far).

https://cimg0.ibsrv.net/gimg/bikefor...a95c4aae1.jpeg


This is the canoo pulling handle, bought for ~10 € on Amazon. It allows to comfortably pull or push the bike while folded, does not rattle and never needs explicit handling. It simply stays out of the way until needed.
When carrying the folded bike up or down stairs it doubles as a carrying handle (the other hand gripping the frame).
Of all mods it is my favourite.

https://cimg1.ibsrv.net/gimg/bikefor...d0f41f353.jpeg


Pulling or pushing the bike while gripping the canoo handle is nearly effortless. The larger (compared to 50mm R&M standard) skate wheels make the cooling bag not touch the ground.

https://cimg2.ibsrv.net/gimg/bikefor...0ea3b80fa.jpeg


There is ample space between bag and stem. I would not expect this to work with the 21 degree "sport stem", however.

I am _very_ satisfied with the bike in this form!
The combination of driving characteristics even when fully loaded, ability to take a _lot_ of luggage (~10kg in the Brompton bag), quick foldability and ease of handling when folded make me quite happy :)
While I do not find my Birdy to be very beautiful per se it epitomises "form follows function" imho.

The Birdy it’s really a gorgeous bike, folded or unfolded. While I’m waiting for your photos, let me post the latest pics of mine :)


https://cimg4.ibsrv.net/gimg/bikefor...e9cd8fac3.jpeg
https://cimg1.ibsrv.net/gimg/bikefor...032568fa6.jpeg

Ah, your Birdy _is_ beautiful :)
Good choice of saddle. I have the Respiro on 2 of my other bikes.
About the Easy Wheels: Does the bike not tend to fall over easily when using them? Even when using the wider spaced ones on my bike it happens every so often that I need to stop and stabilise.

fatbikeGM welcome to community :)

Looking forward to your post update with photos when you’ll reach 10 posts.

I’m specifically interested to see how you secured the pump.

Saddle angle seems to be a little too down. Aren’t you sliding off of it?

Removed low rider from front fork. Do I need to close down this hole? To prevent water from getting in and what not?


https://cimg2.ibsrv.net/gimg/bikefor...0c83ca3bf.jpeg