Peter Henshaw has been an enthusiast for anything with wheels since he was a child – everything from bicycles to 500hp tractors. He was Editor of Motorcycle Sport & Leisure for five years before going freelance, and now contributes to a whole raft of transport magazines and websites, including The Vintagent (motorcycles), A to B (cycling) and Tractor (as it says …) as well as editing Vintage & Classic Motorcycle. But this petrolhead is becoming increasingly green – now doesn't fly, doesn't own a car, rides the most economical motorcycle on the market, and for local journeys uses a bicycle or pedelec.

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• 1 – Origins – the pre-Bonneville Triumphs2 – Year by year:1959-62Pre-unit 650s - T1203 – Year by year: 1963-70 Unit 650s - T1204 – Year by year: 1971-74 Oil-in-frame 650s – T120, T120R, T120RV5 – Year by year:1973-77 Early Meriden 750s - T140V6 – Year by year: 1978-83 Late Meriden 750s – T140E, TSS, TSX7 – Year by year 1984-88 Harris 750s8 – Buying a Bonneville9 – Postcript: the Hinckley Bonneville

Peter Henshaw has been an enthusiast for anything with wheels since he was a child – everything from bicycles to 500hp tractors. He was Editor of Motorcycle Sport & Leisure for five years before going freelance, and now contributes to a whole raft of transport magazines and websites, including The Vintagent (motorcycles), A to B (cycling) and Tractor (as it says …) as well as editing Vintage & Classic Motorcycle. But this petrolhead is becoming increasingly green – now doesn't fly, doesn't own a car, rides the most economical motorcycle on the market, and for local journeys uses a bicycle or pedelec.

Select Guide Rating

• 1 – Origins – the pre-Bonneville Triumphs2 – Year by year:1959-62Pre-unit 650s - T1203 – Year by year: 1963-70 Unit 650s - T1204 – Year by year: 1971-74 Oil-in-frame 650s – T120, T120R, T120RV5 – Year by year:1973-77 Early Meriden 750s - T140V6 – Year by year: 1978-83 Late Meriden 750s – T140E, TSS, TSX7 – Year by year 1984-88 Harris 750s8 – Buying a Bonneville9 – Postcript: the Hinckley Bonneville