rmac Design

Pre-65 Triumph Tiger Cub Trials

Dave Thorpe Armac Cub-1 Armac Cub-2

fFrom 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


Duncan will be riding the Midlands Classic NBBC on Sunday April 8. Please contact us by Saturday midday if you would like Armac Design or REH Forks parts to be delivered

Also: Huddersfield Club pre-65 trial at Holmfirth Friday April 14

Yorkshire Classic at Litton April 16

Scottish 2-Day Classic (leaving workshop 26/4)

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