These are the notes I made on the system, wiring diagrams and the like. Heinzmann weren’t easy to get technical info out of, so it’s stuff I worked out by experiment. Enjoy. Don’t blame me if you blow anything up…

New bottom bracket shell, originally uploaded by Ben Cooper.

A courier bike where the bottom bracket shell off as he was riding along…

A visit from Dave Holladay many years ago, originally uploaded by Ben Cooper.

This is a picture from the old shop – so maybe 8 years ago. The bike is Dave’s much modified Brompton, the trailer is a clever single-wheel one, and the bike on the trailer is a Cresswell Micro that snapped and I’d just welded back together with lots more reinforcement.

Fork and stay bender, originally uploaded by Ben Cooper.

Revamping the workshop, and I treated myself to a new slick tube bender to do lovely curvy stays and blades.

Stein tube knurling tool, originally uploaded by Ben Cooper.

An example of my bike tool collecting problem. Sometimes it might be handy to knurl tubes and the like, so I imported the only tool in the world that can do it from the States.

BikeCAD, originally uploaded by Ben Cooper.

BikeCAD is absolutely fantastic software – I use it for all conventional frames now, it makes setting up the jigs and mitring the tubes so much faster and easier. Plus it can do custom paint jobs – so orange flames have to be done

Sliding dropout Kona, originally uploaded by Ben Cooper.

An old Kona steel frame, converted to Rohloff sliding dropouts and repainted.

Dropout replacement jig, originally uploaded by Ben Cooper.

Replacing dropouts is a common job to do, so I made a special jig to make the process quicker and simpler…

Finished Mikrokopter Okto XL, originally uploaded by Ben Cooper.

A completed 8-rotor Mikrokopter, built for the government health & safety laboratories.

Ovo tandem, originally uploaded by Ben Cooper.

The Ovo tandem is ingenious – it splits and the seats come off in seconds, so it packs into a few rather small bags. Still rides very well, though. Trying to decide if I can afford to be a dealer for this