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A deceptively complex job, the Trek 1120 is an interesting bike, built with 29″ fat tyres for off-road touring with custom racks. As standard it has derailleur gearing, this was a conversion to Rohloff hub gearing, and adding a Gates belt drive and SON dynamo hub to power lights and a Plug5 charging device. This needed a custom Rohloff A12 hub, custom-machined dropouts, a custom-machined chainset and very careful choice of parts.

This was a complex build! One of my Duplex tandem recumbent tricycles, with hand crank power for the stoker, Rohloff gearing, and electric assist from a Pendix drive. S&S couplings let it split in half for transport. The mid-drive system has a freewheel so the stoker can stop pedalling, and there’s a tensioner to keep the chain on when folding the hand crank arm forwards to get on and off.

This Brompton was rebuilt to have 20″ wheels with Kojak tyres, Alfine-11 hub gearing, Magura disc brakes and SP hub dynamo lighting.

Built for touring on tracks and trails, this custom-built bike has a frame made from Columbus Zona steel, and a Whisky carbon fork. It’s got Rohloff hub gearing, and a belt drive, so almost-zero drivetrain maintenance needed. S&S coupling mean it can be split and folded for easier transport.

This electric-assist Brompton has Rohloff hub gearing, integral rear rack, Magura disc brakes, belt drive, 18″ Big Apple wheels, Magura disc brakes and SON dynamo lighting.

This Brompton has a replica of the Nine Streets limited edition paint scheme, Rohloff 14-speed gearing, belt drive, integral rack, 18″ Big Apple wheels, Magura disc brakes and SON dynamo lighting.