What part is the sockal clip ... is that the locking mechanism for the folding part? I realise you can't load up a photo as a newby..you need 9 posts before they allow that.

There are very few parts available. Maybe you can find a local fabricator to make one for you.

This weblink may help The Folding Society - Mezzo d9 - an owner's view

Thanks for the quick reply.
Yes, its the black block that should sit in front of the rear axle and hold onto the front mudguard arm when all folded up. Turns out it is very important as it stops the bike unfolding when picked up
Will have to look for alternative systems
thanks again

This is my sockal clip - might help if you need to show it to someone else.

Thank you.

I did see ORI used the same Sockal Clip so maybe there is an Ori dealer with some spare parts somwhere in the Western World. Ori now seems to be under Chinese ownership so good luck trying to get something from them directly!

If you're in the UK, you could try reaching for their only retailer in Europe:

DEALER | ORi Life Style Folding Bikes
https://www.instagram.com/oribikesspain/?hl=en

I bought one of these a while back. It's good for tall people, I'm 1.92. The ride feels very similar to a normal bike. It just takes a bit of getting used to the handling because of the small wheels. But since I have an electric scooter with eight inch wheels, it wasn't a problem for me .

I am not as tall as you but I enjoy the upright position and the way the steering works. It is so well built too without a hinge to wear out on the main structural beam.

Thanks everyone for your help. Not been able to find the exact part but found some stuff in B&Q that might work. Will report back if I sort it

It's also, oddly enough, very comfortable for such small wheels.
The transmission with nine gears is very good. Only had to adjust the brakes, shifting and change the lock on the chain. I got the bike new, I don't know where it came from considering they haven't made them for years.

hi jetsetjimbo
did you manage to do a B&Q fix? I’ve got the same problem with a missing clamp!

Hi all - new here, but I've been a Moultoneer for a couple of decades, plus owning a few folders (Stridas, a pimped Raleigh Twenty and weird Chinese that looked like a suitcase with wheels on it...). I saw this Mezzo i4 going cheap - I was looking for a cheap Brompton to fix up/upgrade, but this was a quarter of the price of the cheapest tatty Brompton and I vaguely remembered the design from when it came out.

Came to me in stock spec and a very wobbly stem (the previous owner didn't know about adjusting the grub screws for a tighter join). Got it home and went about deciding what to do to it. Came up with the following:

Tyres: change to Kojaks
Gearing: change front and rear from 44/18 to 46/16
Brakes: got some Shimano R650s in the parts bin - they're Ultrega quality and these married up with Koolstop Salmons is my preferred setup for my other bikes.
Saddle: change to a Brooks B17
Pedals: change to MKS FD-7 or FD-7 Wides
Seatpost: might get another if I can find one with height numbers, current one is scratched up so only an aesthetic change.

Other things:
- It's missing the stud on the front mudguard - I'm presuming they used football studs originally so I ordered some cheap ones to stop it from overbalancing when folded. If I'm wrong I'll find out shortly!
- I think I'd like to add the larger rollerblade wheels, but do they need extra parts? Or does the axle that's inside the current wheels get reused when fitting the wheels 'outboard'?
- Luggage - I managed to snag the large commuting bag off eBay. Not cheap, but compared to Moulton stuff it was a bargain!

All in all, I'm quite chuffed. It seems to be a very capable little 4-speed bike, and the Kojaks have already been fitted and make a big difference already.



As bought - original spec

Folded

Kojaks and Brooks added

Welcome to the Mezzo Club! I decied to biy a Mezzo as the design looked better in my engineering eyes and I have not been disappointed. I have a D9 which is perfect for my use. I added larger rolling wheels with adaptors - see image below.


Wheels - my mezzo is blue as well so they match!

Adaptors which were being sold on the internet (checked the link but no longer working) but should be easy to make.

Re Wobbly stem - can you show me what grub screw you have found to adjust this please?

Enjoy your ride!

There are two grub screws (blue arrows) that need a small Allen key. If you undo the large bolts for the silver cylinder that 'clicks' to lock the stem in place (red arrow shows one side, other bolt is hidden), you can adjust the grub screws to move the cylinder up or down, to make the joint looser or tighter when it closes (see red arrow on the second image), then tighten the large bolts again once you're happy - you need to get the right balance between having a tight join when locked, and the cylinder being easy to click into place.



Stem locking mechanism showing grub screws (blue arrows), and the bolt for one side of the cylinder (red arrow).

Red arrow pointing at the grub screw pushing against the cylinder to tighten the join once locked.

There are two grub screws (blue arrows) that need a small Allen key. If you undo the large bolts for the silver cylinder that 'clicks' to lock the stem in place (red arrow shows one side, other bolt is hidden), you can adjust the grub screws to move the cylinder up or down, to make the joint looser or tighter when it closes (see red arrow on the second image), then tighten the large bolts again once you're happy - you need to get the right balance between having a tight join when locked, and the cylinder being easy to click into place.



Stem locking mechanism showing grub screws (blue arrows), and the bolt for one side of the cylinder (red arrow).

Red arrow pointing at the grub screw pushing against the cylinder to tighten the join once locked.

Well done. Looks very tidy.
Mine is still stock, not very handy so not made any upgardes.
Can you share exact tires?
Not ridden in a long time as I blamed the bike for sudden, severe back pain (can't be true, can it?)

Very helpful - thanks so much!

He's running Schwalbe Kojaks. I had them for awhile on my first Brompton. They're light,but puncture protection is minimal,and they don't ride that well. For 16"/349 bikes I would recommend Continental Urban Contacts which are only a little heavier but ride nicer and have better protection with about the same level of grip.

New member, so I'm only allowed five posts a day at present, and I've wasted a couple on showing my cats...

Yes, they're Kojaks, but I've had nothing but good experiences with them - for Moultons with 17in wheels they're pretty much the only option, and I commute into central London from Hertfordshire three times a week on mine (90 miles a week). My usual route normally has broken glass etc. on the way through the suburbs, but I've rarely had a puncture in four years or so of doing it (I think maybe three in total?), and my last pair have lasted around 3,000 miles. Considering they're slicks, the grip is also very assured on most surfaces - I just make sure I don't go over smooth manhole covers in the wet!

Your bike might be to blame for back issues - the saddle is adjustable enough, but the bars aren't that moveable, so it might be worth changing them to give you more possibilities?

Today I rode my Mezzo and had a moment to make this adjustment - perfect - no more unwanted movement

Here is my Mezzo D9 today after a short ride to a friend's house to help fix his car. Perfect weather.

The rear carrier with extra rollerblade wheels added on the same axle. Makes it easy to roll along with the saddle raised.


Thanks for the guidance about this adjustment as the users manual didn't make this clear.

New to me Mezzo D-9. My daughter fell in love with and co-opted my Dahon Stainless so this fills that gap. Love the bike so far, I find the fold a little finicky but am sure I will get the hang of it. The ride so far is somewhere between my nimble Dahon and my brother’s Brompton. Time will tell but so far it gets a thumbs up!

I don't want to harp on about the folding but I do know once you have done it a few times it becomes easy as you tune up your method. The key is to make sure the pedals are at 3 and 9 o'clock is the first step with the drivetrain side facing the rear. And theses bikes are grand - an engineer's delight! Your daughter might have scored the Dahon but you have a much better engineered bike! Enjoy

Thank you, about to take it out for a fall colour ride! I have gotten much better at it, the only part I’m finding finicky is that the front wheel seems reluctant to release and pop into position when folding, but I think I just don’t have the trick to it yet.

The front wheel trick is to pull the axle against the spring and it will then drop out of the forks. When unfolding, I find I need to tighten the clamp with 2 or 3 turns to make sure the wheel clamps to the forks properly.

Have recently joined the Mezzo club with a D9, scored for a princely £75. Absolutely loving it - already plotting upgrades. Is there any hard limit on cassette/derailleur size? Looking at a 10sp 10-40 setup, as components are so cheap these days, but a little concerned about cage length moving to an MTB mech. And does anyone have any cable housing recommendations? The bends are absolutely torturous, I can see why the stock setup used spiral brake housing for everything.

Big thanks to this thread for various tips - I was going to ask about the play in the stem hinge, and the weird plate bolted to it, and the fact that it wants to fall over sideways when folded, and all already answered