Fran Varas Blog

The history of an incredibly curious guy

Trike project

This is the story of a guy that was getting tired of his bike due to intense lower back pain. After some research, he found that trikes could be the solution.

Here we go!

Bill of Materials (BOM)

Item details/specs total price quantity
bearings 6903 front hubs 20€ 2
square iron tube 40mm ext/1.5 thik 35€ 4m
square iron tube 30mm ext/1.5 thik 32€ 4m
arc welding stick 1.6 mm 50€ 200
20" front wheel disk hub 50€ 2
26" rear wheel 7 speed+disk hub 60€ 1
disk brake set mechanical tektro 0€ (45€) 3
disk brake 160mm 0€ (30€) 3
20" tire schwalbe marathon 0€ (40€) 2
26" tire schwalbe marathon 0€ (30€) 1

items @ 0€ come from recycled components real price in ()

Tips and tricks

  • average welding current 45A
  • paint often, it will avoid rust.

Tools used

  • Angle grinder
  • Drill
  • Arc welding machine
  • Metal saw