Folders! Foldable bicycles, minivelos and demontables

[Mod-Master]

It weighs 7.7kg with Ti spindle Speedplays Zeros.
View attachment 707977

The rear caliper is attached using a small mount that I TIGed together.

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The rear OLD is 112mm on these bikes. I do a modification to a 130mm Hubsmith hub which uses 7/10 cogs. Then I shift the SRAM Rd with a Campy Xenon 10sp lever. The adapter plate I made out of 6mm 6061 plate. You can see small adapters that I had made to mount a rack to the abandoned V Brake mounts.

View attachment 707979

The carbon fork is preloaded then this Problem Solvers locking spacer is snugged up before tightening the stem mast.

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I use an offset ring to put the chain line in an acceptable location.

I hope that explains a bit of my madness. This bike is kind of half of a good idea. It fits and rides nicely, but the fold is a bit of a gong show.

I’d like to come back to this, as I really like it, and would like to know a bit more about the stem.

Any chance you could supply more pictures of how it’s fitted? As I can’t get my head around how it clamps on.

 

[flash]

Peugeot UNS40 1974

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If that’s the 22” wheeled one, it’s pretty nice. I was offered a 3 speed one this week….tempting…

 

[dbwheels]

Any chance you could supply more pictures of how it’s fitted? As I can’t get my head around how it clamps on.

Here are some details below.



The titanium stem doesn't have a provision to tension the headset. It just cinches onto the steerer tube, so...



I have machined an aluminum insert with a threaded portion that I bonded into the carbon steerer with JB Weld. The insert is 100mm long and extends below the upper bearing, then...



I have made this thin aluminum sleeve used with a top cap and bolt like so...



This way I can preload the headset bearings, then the Problem Solvers locking spacer is tightened to hold everything in place and the stem is installed.

When I have some time I will fold and compact this to show how it looks. I didn't hope for an easy "every day" fold for this bike, I wanted it to fold in half to be baggable for train and bus travel and be somewhat deconstructable/foldable for flight packing

Ultimately I would like to make a stem that terminates differently at the bar end so that I can build a splittable drop bar.

Initially I used an aftermarket bolt on RD hanger, but it wasn't long enough to provide clearance for my largest cog owing to the short cassette. Adding a goat link didn't work, so I made the custom length one that you can see on the previous photos.

 

[Mod-Master]

Here are some details below.

View attachment 718801

The titanium stem doesn't have a provision to tension the headset. It just cinches onto the steerer tube, so...

View attachment 718802

I have machined an aluminum insert with a threaded portion that I bonded into the carbon steerer with JB Weld. The insert is 100mm long and extends below the upper bearing, then...

View attachment 718803

I have made this thin aluminum sleeve used with a top cap and bolt like so...

View attachment 718804

This way I can preload the headset bearings, then the Problem Solvers locking spacer is tightened to hold everything in place and the stem is installed.

When I have some time I will fold and compact this to show how it looks. I didn't hope for an easy "every day" fold for this bike, I wanted it to fold in half to be baggable for train and bus travel and be somewhat deconstructable/foldable for flight packing

Ultimately I would like to make a stem that terminates differently at the bar end so that I can build a splittable drop bar.

Initially I used an aftermarket bolt on RD hanger, but it wasn't long enough to provide clearance for my largest cog owing to the short cassette. Adding a goat link didn't work, so I made the custom length one that you can see on the previous photos.

Cheers, that helps me out a lot

 

[hamster]

Nice big stack of spacers on the VO, 14 below the stem. Could be a record

Still not enough to get you into the Thorn owners club.

 

[flash]

Anyone know where I can buy a Minivelo frameset? I know I’ve probably missed the boat but I would like to build one up, ideally with trackends…

 

[grantoury]

Anyone know where I can buy a Minivelo frameset? I know I’ve probably missed the boat but I would like to build one up, ideally with trackends…

This is the only one I can think of outside of Japan:

Neutrino Frameset

The Velo Orange Neutrino is a mini velo designed for commuting, touring, and travel. The use of smaller, 20" wheels makes navigating urban landscapes significantly easier without compromising on ride quality. Additionally, it's great for apartments as the overall size makes it smaller to store.

velo-orange.com

 

[flash]

This is the only one I can think of outside of Japan:

Neutrino Frameset

The Velo Orange Neutrino is a mini velo designed for commuting, touring, and travel. The use of smaller, 20" wheels makes navigating urban landscapes significantly easier without compromising on ride quality. Additionally, it's great for apartments as the overall size makes it smaller to store.

velo-orange.com

Ta. I have seen those but they are very spendy…nice but spendy

 

[grantoury]

Ta. I have seen those but they are very spendy…nice but spendy

I actually didn't look at price, but yea nowhere near cheap. I had a look on Bluelug but only saw the VO.

 

[grantoury]

Or maybe import something from Japan:

Bikes2019｜ARAYA Bicycle Project