They say to change every 12K miles, however as 95% of
mine is on the motorway I wonder if I can get more out of it ?

Simon Fitzgerald, June 2006

Mine lasted 12,800 miles before it broke. Replace them now.

jack, October 2008

not really its the engine doing the miles so you had better change it when it says really a risk of snapping valves off in the head is a big expense,i have changed them before they are easy to do unlike people will lead you to believe and the belts are not expensive approx £40 for a pair which is alot cheaper than valves pistons and cylinder heads do whats best for it mate and it will serve you well.:)ADAM

ADAM BIKE DOCTOR, June 2006