I made this motorlift with the plans i got from a friend. For mine i changed it a bit , mine is longer and higher than shown in the plans. It can easily lift my motorbike which ways about 170 kilo. I also use it a lot as an extra workbench.
Many many thanks to Eurospares.com for their plans for a plywood bike bench.Here's the result (with the usual Gunkification, I just thought it would be better built upside down. I can change it later if I want)