News and Events

Keep up to date with the latest news and events of Modular Bikes.

Monday, August 3, 2020

A bike is good...

Sizing up parts to use for the project. This is an ancient Scott triathlon handlebar extender.
After day 1, doesn't look like much but I had swapped over the handlebars, cut apart the Scott extender and started trying on a crate for size.
End of today and proving its worth by carrying a basic unit of currency, a slab of beer.

This is all the workings of it. Downstairs, a small prop which keeps the crate away from the headstem. Upstairs is the equivalent of 3 sets of mountainbike bar ends which support the crate and provide stops to stop it slipping.

Just in case orange is your colour, not green.


A bike is good but a bike that can carry stuff is better. That has never been truer than here and now!  In Melbourne we are coming into stage 4 coronavirus restrictions, and there are limits on exercise (1 hour per person per day) and shopping (1 person trip per household per day). So the load carrying bike turns shopping into exercise, hooray, who woulda thunk it? The bike I've started with is an Avanti Illusion as described here.

Anyway, this bike is just a trial, it puts a load carrying milk crate on a bike in quite a civilized neat way without first having a rack to tie the crate on.  Not sure if this is a good idea, but I have put it out there.  And it hasn't carried any real loads yet, just posed for photos in the back yard.


Steve Nurse

Friday, July 31, 2020

New MBB Part 7

Made a new shim today, circled red here, and
Sawed open the gap in the 2 stems so they don't clamp together like this when they're on the bike.

Local scenery gathered on a walk.

Old aluminium shim.

New steel shim. Its thicker, so the clamps clamp quicker on the fork tube and are less strained when they clamp.


Some progress from yesterday, I've done some work on the steerer, hopefully getting the clamp pressure up enough to stop the pedals moving relative to the steerer or the front wheel.

So I can give it a go tomorrow again.  And I have a plan B, to make a sort of frame around the clamps to keep everything straight.

Regards  Steve Nurse

Thursday, July 30, 2020

New MBB Part 6


So here are today's pics. I finished off the bike so its rideable, but really its not great. The steerer isn't clamped to the fork hard enough and it waggles under pedalling, so its fairly ordinary. But that is something I can work on.  Might be a few days till I've fixed that and can post again. As well the steerer is too wide and I can't get it easily past the water tank at the side. That's a slightly easier fix though.

Regards  Steve Nurse

Wednesday, July 29, 2020

New MBB Part 5

Adjustable reamer....

was used to ream out the steerer stem for a.......

22mm handlebar. Central hole in bar is to allow gear and brake cables through.

So this is what it's like now, I borrowed the seat / tailbox from another trike.


Did a bit more on my trike today, made some handlebars, fitted them to the steerer, fitted some pedals, fitted the seat as it was getting dark. I'm interested in the stems for 31.8mm handlebars, they could end up making some interesting bikes.


Steve Nurse

With a stand in place, I should be able to set the front up quite quickly and get it on the road

Tuesday, July 28, 2020

New MBB Part 4

Close now!  I fossicked in the shed and found scooter parts which will be used for the steerer and ....

fitted the 20" wheels but I needed to make a few spacers to stop the wheels slining on the shafts.

Hi, Today's progress on my new mbb leaning trike. There is not that much left to do, fit the chain, fit the pedals, mount a seat, set up the steerer, set up the brakes. set up the gearchanger and I'm just about done.  Its really a proof of concept trike, once I get it going, I will decide what to change and improve.


Steve Nurse

Monday, July 27, 2020

New MBB Part 3

Fibreglass spacer struts in place.

Cleaning and lubricating the old derailleur I picked out for the job yesterday.

Back bottom bracket in place

Back wheels ready to go.
Progress on front. The steerer, cranks and front wheel all move together.

Only 5 pics tonight, there was a malfunction with the computer operator and I accidentally deleted a few files!  Anyway I've put most of the front end together now, and after drilling out the frame yesterday I have the rear bottom bracket bearings in place. A couple of 20" wheels for the back made up, not that far to go.


Steve Nurse

Sunday, July 26, 2020

New MBB Part 2

Matching Holesaw and bottom bracket shell........

all set up for drilling the set.....

of holes, 1 in each sidewall for the axis for the rear wheels

frame taking shape.

Gaskets for under the bottom bracket shells are made from bicycle tubes, the shells are traced around to get the centre hole and outside shape.

Mostly done, not much more to finish off the back axle now.

Spent some more time on this trike today.  This includes finalising the drivetrain, and I chose an old short throw rear derailleur which I fixed the limits on and looks good.

And the  frame is almost done, there is only a small brace for between the bottom bracket shells. Happy with progress.


Steve Nurse

Thursday, July 23, 2020


Original from 8 years ago
New trike to be like on this one with a new front end.

Stem for 31.5mm handlebars holds bottom bracket cartridge with threaded cups removed. I originally used this type of stem here.  You can do strange adjusments with it, like quickly change the bottom bracket height and sideways position

A few parts. White forks donated the head tube bearings for the new bike. Centre part is timber frame for front of trike with bearings. Black fork will be used on new trike.

Hammering the wooden bearing holder into aluminium rhs frame

All the parts

Parts in place, testing transmission.  The cranks moves with the steering.

Frame clamped to plywood board for testing.


Several years ago I, had a go at making a moving bottom bracket front wheel drive bike based on a fixed bottom bracket bike I had made. And now years later simple leaning trikes are my recumbent of choice, and I am going through roughly the same process, making a new trike this time, but with so many old parts lying around its not really all that hard.

Pics above show progress to date, I'm quite pleased!  With Melbourne in coronvirus lockdown more than the rest of the country, I have to do something to keep the brain ticking over. Will report more later.


Steve nurse