Wheel size

I have clip-ons and 18" rear with 110 BT45, 19" front and 100 BT45. Steering is too light at low speed and can be twitchy on small diameter roundabouts and tight left or right turns. However, at speed (over 70 mph) it does take some effort to turn and needs counter steering and body movement. Frame is an 850 as are forks. A smaller section front tyre will help and a 90 is recommended (AM26).

Also look for posts by Simon Ratcliff. He has written extensively on Commando wheel size, steering, alignment, wobble, swinging arm, etc., etc. Anyone who knows anything would have also chimed in on those.

Keep the front wheel at 19" and the skinniest tyre you can get for light steering. Cafe racer clip on bars will always seem heavy. 18"or 19" rear will make little difference to the steering.

Hello Per,

From experience, I have found that the 19 inch wheel size, in WM2 format for both wheels, is the best for the Commando models.

For longevity, fit a Dunlop TT100 3.60 on the front and a 4.10 on the rear. They last a long time and their profile raises the machine up a little.

For very good handling, especially in wet weather, the Avon Roadrider in 90/90 (front) and 100/90 (rear) is superb, but expect the rear tyre to wear out quickly. If you can get 5,000 miles from a rear then you are doing very well.

Finally, as with any advice, there is no data to back up my suggestions so they are only opinions :

Colin Cheney, Leicestershire.

From experience, 18" front will ruin high speed stability.

100/90 x 19" tyres front & rear is the best.