Full Size Bicycle
Below are some photos of an (almost) rideable bike made entirely from Meccano (except tyres & tubes, and non-standard ball bearings).
A smaller Bike
A set of four - different scales!
Built for my 2-year old grandson. The largest 2 are motorized. The largest has remote-control power and steering, the bodywork is mainly copied from Richard Smith's design in Runnymede guild magazine, June 2019