What did I learn to ride on ?
A Triumph touring model, built with Reynolds 5-3-1 tubing 26" wheels with 4-cross spoking and tubed tyres. Leather Brookes Saddle with 5-speed Camapgonolo gears. About 3/4 horsepower.
Covered many thousands of miles together before I discovered that bikes came with engines as well.
Still got that one? It might be worth some coin, in collector's circles.