Saturday, 1 February 2014

mADbikes advertising Trike

Bit of a mystery this one, can only find a couple of photos on the web.

From Gareth Lewis


The front looks like a copy of the original Brox.

Sunday, 22 September 2013

Climate Change March 2006

It is not often I come across pictures of my machine on the web. I think the problem is that people don't consistently tag the Brox as they don't know what to call it.

Joe Rowing labled this one "Quadricycle" which is how I came across it.

Saturday, 15 December 2012

Sky Ride 2012

I decided to try out the route this year, complete with sound system and trailer with A-board on the back. Here are a couple of photos off the web...

and from Ella who rode with me much of the way

Sadly the ride was a corporate exercise in advertising rather than a meaningful community event.

Saturday, 8 September 2012

Sound System Rebuild

A couple of weeks ago the sound system got a makeover. Here it is in the original tatty green with the remains of all manner of posters and stickers all over it.

The old sticky-backed-plastic came off without too much difficulty, and much of the wiring was stripped out and tidied up.

The new covering of gloss sticky backed plastic went on without too much difficulty, though the finish isn't brilliantly smooth.

However, the general effect, with the new led reflector lights front, side and back is pretty good. I also managed to improve the bass end of the sound system by adjusting the crossover, resulting in a nice firm bottom end.

The system got it's first outing at last month's critical mass in Manchester.

Tuesday, 28 August 2012

Brox Compact vs Mini

Cars used to be a lot smaller. It's quite striking when you do find proper old cars just how small they are.

This old Mini really is not much longer than a Brox, and the green colour almost matches.

Photos from MOSI Mini Maker Fair.

P.S. the following day the Brox was actually longer with trailer...

Trundling home fully loaded...

Monday, 25 June 2012

Friday, 15 June 2012

"Medwinds Bikes go to Manchester"

Here's a variation on the advertising Brox Compact done for clothing company Medwinds.

And some shots of them in Manchester back in March 2011.


It's just a shame they had to stand in front of the machines in every photo...

Friday, 8 June 2012

Monday, 28 May 2012

Not a Brox but...

I know nothing about this home made 4 wheeler.

I found it here whilst doing an image search for Critical Mass

Monday, 2 April 2012

March Manchester Critical Mass

Photo by Ness

Music was Spiro Kaleidophonica and Easy All Stars Dubber Side of the Moon

Wednesday, 28 December 2011

Manchester Brox with sound system

I haven't posted too many pictures of my machine here, so here's one from the start of the Moving Planet Day, back in September.

And a couple of videos of it out on Critical Mass in back in May

Sunday, 11 December 2011

The New Firebrox Web Site

Firebrox has undergone a major overhaul, and you can follow its progress over at the new web site

More photos here, including details of those new brakes.

Saturday, 5 November 2011

Sim Bamford's Brox Based Sound System

A Brox Compact was fitted with a sound system by Sim Bamford in 2002.

These photos from Sim's web site show the first version.

It was photographed at the big stop the war march in 2003 after it had been modified to lower the centre of gravity.

This machine is not the same as Firebrox as far as I know.

Thursday, 27 October 2011

Firebrox (take 2)

Probably the most well known Brox Compact in the UK, Firebrox is the main sound system for the London Friday Night Skate.

I caught up with it at the original 2007 London Freewheel. Note the striking blue wheel hubs.

The machine is heavilly modified to help carry the 2kW PA system, with 52 gears and from odd forum posts it seems the hard work it goes through results in it needing a significant amount of maintenance, there is a detailed post covering the problems here.

Thanks to dan_b's comments and his photos on Flickr (below) I can now tell the correct series of events. The version of Firebox in my photo above, piloted by dan_b, was bought as chassis plus the aluminium flatbed load tray in 2006 from an employee of Brixton Cycles.

There were two versions of Firebox, the first was based on the standard tray (plus a repaint) and a steel support for the speaker:

And the second has the reworked back,

dan-b also sais that "Sadly it's currently off the road *again* as the drive axle snapped earlier this year and we've been unable to source a replacement. We're planning to take it down to Kingsmead to get the rear frame rewelded: I'm told that their newer design uses a plain axle instead of the complicated piece of machinery in ours, and they can fit mountings for Magura brakes at the same time."

Sunday, 16 October 2011

Back in Production

The Brox Compact is back in production at Kingsmead Associates.

The new machines will have Mangura Big brakes on all four wheels.

For more details contact

Tuesday, 11 October 2011

Back in Production?

from 3/10/2011

If anybody out there needs BROX COMPACT spares or service please email me at

We are located in Kent England, near the Channel port of Dover.

We are currently making a batch of BROX Delivery quads, and some advertising quads.

If you are interested email for prices and completion date

Happy cycling Clive

It would be nice to think we could get replacement parts, but sadly I think the front brakes are going to be a big chalenge. I assume this post came from Kingsmead Associates who manufactured the compact.

Monday, 29 August 2011

Veloblitz Brox - (2005)

Another Brox Compact found on Flickr, this photo from 2005 is a Brox belinging to a Swiss company Veloblitz based in Zürich.

Photo by Bregan K Moving Target.

Sunday, 31 July 2011

A Motorised Brox - for sale

Seen on Gumtree - Dublin

Brox Bike - motorised - 4 wheel articulated bike

Motorised Brox Bike - 4 wheeled articulated bike with recumbent type seat and flat bed for load carrying. One of only 3 such bikes in existence. Heinzman Motor, Sclumpf mountain drive, 7 speed. Fairing for aerodynamics and weather protection. A truly unusual vehicle which is guaranteed to bring a smile to your face as you use it.

I'm not a fan of fitting electric motors to bicycles and the like, the result is a variation on an electric motorbike - albeit sometimes speed limited. In the case of a Brox you end up with somthing akin to a large mobility scooter.

Notice how the drive wheel has been fitted with a bar reaching round the outside so the motor can be mounted, making the machine slightly wider. The motor has been fitted to the non-pedal driven wheel, so perhaps the motor could be repurposed to generate electricity to power a sound system.

This Brox is also notable for the fitting of an HP Velotechnik Streamer fairing and the Sclumpf mountain drive.

It also has a bar-end mirror on the right, but I suspect it mostly gives a view of the load platform.

It is not clear wher the battery is mounted, possibly in the cage fixed to the front of the load platform.

All photos from the Gumtree advert.


A bit more info on VeloVision.

Sunday, 12 June 2011

Front Brake Repairs

The Brox uses many non-standard and (now) obsolete parts. If such a thing as a repair manual for the machine exists I'd be very grateful for a copy. Meantime I'll post any information I find.

The front brakes are a pair of Sachs power discs, these are now obsolete and owners of machines originally built with them like the older Greenspeed GTT, AnthroTech and the Brox Compact all face the problem of servicing them and finding suitable replacements. I have found the old parts list on-line, the brake is on page 59 and the service kit on page 135 - this dates back to 1999.

The newer versions of the Greenspeed and AnthroTech both now use the Mangura Big Twin (more info), however the mounting arrangements are different. Pedicab shop advertise them for sale in the UK.

The following is the story of the conversion of the Firebrox to the Mangura brakes. It is reposted from FireBrox Repairs - in case the original ever disappears.

This front brake replacement is one repair I am not looking foward to - I hope I can find a simpler alternative!


Just about all the bearing surfaces have been changed, wheels, headsets (all 3 of them), gear cassette rebuilt, new custom chainguard fitted, chains replaced (both of them), repainted sound chassis, perspex panels cut and replaced, an overhaul, rewire and simplification of the sound system, speaker array mounts replaced, binding brakes fixed. I'm sure there are some things I've forgotten we've done.

This has been a time consuming task as the Brox is very nonstandard. Bearing surfaces were very hard to source and eventually had to be machined to fit. Every time we work on it we hit an unforseen wall of some description or another. Work has also been delayed by my being out of the country for 3 weeks as I have been made redundant recently, but had the offer of work teaching freediving in Dahab, got to get the work no matter how unpleasant ;)

So all in all sorry it's taking so long, I want it out of my garage and back on the road too, but we have one major problem which is a show stopper, the brakes, these have to be bled (no, it's not at all like a car), but as a result of the calipers being obsolete, we cannot get the spares or the correct bleeding kit to get all the air out of the system. WOTNOBRAKES?!?!? Yes indeed, no flippin' brakes, so you can see, this has to be resolved before we can possibly use it on the road.

We are close boys and girls and no one is missing the Brox like me, as I have some truely killer mixes stacking up at home ready to play on the LFNS.

So watch this space, once the brakes are working safely we can reassemble the poor beast and bring it out again as a more reliable deliverer of music.


The problem: The new disc brake calliper uses a completely different mounting arrangement to the old one, and because the old system is obsolete there's no standard adaptor available so a pair has to specially made. The other problem is that with this particular combination of hub, disc and calliper the spokes hit the outside of the calliper so a 5mm thick spacer is needed between the disc and hub to position the disc and calliper further away from the wheel. This in turn means that the disc is now too close to the frame and the heads of the disc fixing bolts hit it, so a longer spacer is needed on the axle to move the entire wheel assembly outwards. However this puts more stress on the axle bolt as it is cantilevered out from the frame. Although it's only a couple of millimetres any increase in stress is not good as the Firebrox is heavily loaded and inclined to go through potholes. The solution is to make the new axle spacer cone shaped so that the face that sits against the frame is a larger diameter than the original thus reducing the leverage and the tension on the axle bolt.

The raw materials: A couple of conveniently shaped lumps of aluminium and a length of steel bar from scrap metal the collection.

After playing with most of my favourite engineering toys we end up with these. Hope it all works...

All photos are by the Firbrox crew.