Writing this from the side of the Monash freeway... Cruising along happily in 5th at about 90km/h when bike starts to slow. In gear - check. Engine running - check. Revs visible in tacho - check. Any power? None. Pull over, luckily I was in the second from left lane. Other symptoms... Bike freewheels when in gear. Chain is good. Wondering whether the front sprocket has come loose as I had problems with a dodgy nut on that shaft a while back which I replaced. Tow called, will report back later. Bike is a '98 Zeal, FZX250.... Tappin' not talkin'