Triumph Bonneville T100

I've put real miles on a '61 T100 and the engine is the star — that pre-unit 649cc twin pulls hard from 3,500 rpm and sounds absolutely right, a mechanical bark that no modern retro replicates. The separate gearbox is notchy by today's standards and you'll miss shifts until you learn its particular rhythm, but once you're dialled in, it rewards precision. Oil weeps from every gasket eventually and the magneto ignition demands respect and regular attention — leave it sitting for a month and you will regret it. But point it down an open road, wind it to six grand, and nothing built since quite matches the sense that you and this machine are negotiating terms together.

The switch to unit construction in '63 was the best thing Triumph ever did quietly — no more weeping primary chaincase, no more oil pooling under the gearbox sprocket every time you park it. The 649cc twin still pulls with that urgent, clattery bark through the mid-range that makes you forget you're on a fifty-year-old machine, and at 100 mph on a good road it feels planted in a way the pre-unit bikes simply don't. The twin leading shoe front brake is a genuine improvement over what came before, though calling it 'good' by any modern standard would be a lie — it requires planning ahead, not last-second heroics. My main gripes are the heat soak onto your right calf in slow traffic and the points ignition needing attention every few thousand miles whether you want to give it or not.

The oil-in-frame chassis was supposed to fix everything, but the reality is those welds cracked, the oil carried heat straight into your right knee, and finding a frame that hadn't been bodged by a previous owner became half the ownership experience. That said, when the Bonnie is running right — and I mean properly sorted with modern points or a Boyer Bransden ignition — it pulls with an honest, characterful surge through the midrange that no Japanese twin of the era could match for feel. The conical hub front brake is a period-correct disaster in the wet; you learn to plan ahead or you learn the hard way. I've put about 18,000 miles on one of these over three years, and I'd call it a 40% motorcycle, 60% mechanical education.

I put 18,000 miles on a 2009 T100 and it never once made me feel stupid for owning it — which is rarer than it sounds. The 865cc twin has a particular mid-range grunt between 3,500 and 6,000 rpm that feels genuinely characterful, not just adequate, and the chassis inspires the kind of lazy confidence that makes canyon roads feel like a conversation rather than an argument. That said, don't kid yourself about the top end: it runs out of breath past 130 km/h and vibration through the pegs at sustained highway speeds gets old on longer runs. The carbed early versions had cold-start fussiness that the later fuel-injected bikes largely sorted, though the FI mapping always felt slightly blunt compared to the throttle response you'd hope for on a bike this pretty.