wooden tandem e-bike

“The Mackerel wooden tandem bike”

wooden tandem bike

The mackerel is a tandem bike built from walnut and maple. the maple has been selected for the “ripple ” effect which looks like a golden irridescent stripe running across the grain – reminding one of the stripes you see on a mackerel

wooden tandem bike
ripple effect

The wooden tandem bike carries a Dillenger 500W hub motor. You cannot fit a mid mounted motor as you need 2 chainrings on the drive side

tandem bike
electric hub motor

the wooden tandem e-bike is designed for dismantling: just undo these 6 bolts remove them (and the mackerels) and it comes into 2 pieces. the handle bar can then be stowed with the rear section intact. You can just see the half lap tenon joint in this picture which forms a very strong joint indeed

he rear diagonal cross brace is an important structural element. I have see tandems without this but cannot see how they can be strong enough when going over bumpy terrain. there is a spring chain tensioner to take up the slack after assembly.

the drive is on the right hand side and uses 2 freehub cranks so that either person can pedal and it doesnt have any effect on the other person. whover is pedalling the drive always gets through to the rear wheel

electric tandem bike

a tensioner keeps the drive tight

the battery and controller are all on the rear section as seen here

wooden tandem