Nick
the change indicator lights at about 7000 rpm, but as things are usually getting busy then, I can't be more accurate. There is a soft cut off a little beyond this, maybe 7500rpm.
I ran mine for a few hundred miles, and then a gentle 15 mins at Castle Combe. Oil and filter change, then a not so gentle 30 mins at race pace.
I had a slight oil leak around the cooler, which was cured by tightening.
One 30 minute race and one 50 minute race since, both at 28C without any signs of overheating. Not a single issue, I'm impressed, very impressed.
Phill
