Finished sidecar.

Plans can be downloaded here for the sidecar, but they are provided with a warning that it was an amateur design and should only be copied at the builder's own risk.

Plans pack

A PDF file of the drawings for the sidecar, details of the attachment links and DXF file which can be used by a water jet cutter or laser cutter to make the body panels.

Fixings

A PDF of the fixings used with the BMW R60/6 motorcycle.

Sidecar weight

Sidecar target weight was 1/3 the bike weight. This would be 70kgs, to create a stable combination.

Frame with wheel and suspension = 20Kg
Bodywork = 24Kg
Mudguard assembly = 5Kg
Fittings = 9kg
Seat = 10.5Kg
Total = 68.5kg

This number was sanity checked by placing each combination wheel on the bathroom scales. Results were :
Front Wheel = 103Kg
Back Wheel = 126Kg
Sidecar Wheel = 50Kg
Total = 279Kg

The original bike weighed 210Kgs. So sidecar weight must be 69Kgs which was approximately the target weight of 70kgs.

Final Costs from 2013/14

(people always ask 🙄)

Frame forming = £150
Bodywork Laser Cut = £270
Frame welding = £50
Bodywork Welding = £60
Wheel = £40
Wheel bearings = £20
Shock Absorber = £12
Bodywork mountings = £4
Stainless bolts and fittings ~ £40
M16 threaded rod = £30
Wire and connectors = £12
Additional Metal Stock = £70
Painting = £110
Indicators = £18
Headlight = £35
Tail light = £10
Wheel Arch =£50
Trim parts = £55
Claxon horn = £10
Rack build = £40
Upholstery = £160

Total ~ £1200