rmac Design

Pre-65 Triumph Tiger Cub Trials

Dave Thorpe Armac Cub-1 Armac Cub-2

From his workshop in North Yorkshire, Duncan Macdonald designs and hand-builds unique components for Pre-1965 Triumph Tiger Cub trials bikes.


Armac Design is a family business, run by engineer and trials rider Duncan Macdonald and his wife Judy. They are proud to make unique, original products in Britain, backed up by personal, friendly service.


For detailed product information, pictures and stock levels, please click on the product name. If you have questions, please contact us.



or call 01751 417371



Happy Christmas and New Year

to all our customers!

We're on our winter break at the moment but still working so to contact us please email or call 07876 433582

All Armac Design products are Copyright and Design Right Protected. Look for the logo!

Jonathan Harrison's Armac Cub: front frame, subframe, swinging arm, propstand, airbox, exhaust, breather, yokes

Dave Thorpe, many-time British pre-65 champion, and winner of Pre-65 Scottish and Isle of Man 2-Day Classic, on his Armac Cub, at Hawk's Nest, Derbyshire

Picture: Yoomee Products / John Hulme

We also manufacture R.E.H. Forks., accessories and yokes: www.rehforks.com


Original Design * Quality Products * Friendly Service