Custom Bikes Trikes Perthshire Scotland


Triumph Bonneville Chopper Motorcycle Frames Glasgow Scotland

Triumph Bonneville Custom Motorcycle Frames Edinburgh Scotland

Bespoke Motorcycles Aberdeen Scotland

Triumph Bonneville Custom Chopper Motorcycle Hardtail Frame Perthshire Scotland

Custom Chopper Motorcycle Hardtail Frames Scotland

Bespoke Custom Choppers Trikes Scotland

Project Triumph Bonnie

The Rebuild - 2

I decided to go with Yamaha XS650 Special wheels, they were about when the Triumph Bonneville T140V and later models were (I owned both in 1979). These wheels where a fairly common mod for choppers in the 80's.
I built the swinging arm on a jig I made, from 50 x 25mm box section. It uses standard Triumph swinging arm bushes and spindle, it is 50mm longer and 75mm wider than the standard Triumph Bonneville swinging arm.
I have welded a mudguard close to the wheel; to cut down the spray off the roads and to add some extra bracing to the swinging arm.

NOTE: All pictures open in a new window when clicked on.

Triumph Bonnie Rear Wheel Conversion

I drilled the standard Yamaha disc, fabricated a caliper mounting bracket and fitted a newer Triumph 4 pot (front) caliper to it. The torque arm has 12mm rose joints with 12mm SS rod linking them. The calipers and the shocks were bought from my favourite shop - eBay.

Triumph Rear Wheel Brake  Conversion

I had to turn down the Yamaha's front wheel spindle to make it fit the Triumph Bonneville forks.

Triumph Bonneville Front Wheel & Brake Conversion

For the newer Triumph caliper to fit I had to grind off a section of the original caliper mount. The caliper mounting bracket is made from 12mm mild steel, and fits using the two original caliper studs.


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