Triumph 350/500 unit construction twins bible 1957-1974

Books about classic bikes tend to come in three forms – those about racing, those of a very general spread of content and those that are specific in their focus.

It is the latter that most of us use as a reference tool and, coincidentally, just what this book is.

By Peter Henshaw and Justin Harvey-James, the tome that completes this month’s Triumph-related triumvirate of Veloce books concentrates on the twin cylinder unit construction machines produced from 1957 to ’74, covering every model, noting the differences between each, from touring 3TA through to race-winning 500cc Daytona, and what the press reports of the time said too.


Aside from all the insider info required to be able to identify a model (or decipher whether it is or isn’t what is claimed!), there’s also plenty of hints and tips for identifying year and specification of parts, and for maintaining and modifying your bike if you’ve acquired one of the unit construction twins.

With lists of clubs, resources, sales figures and magazine reviews, it is part workshop manual, part easy reading and part reference manual. In short, if you have an interest in the subject matter, you should order a copy! Priced at £27.50, more details can be found at or on 01305 260068.

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