Q. What is crusing speed in Interceptor 650. How much speed we can maintain continuously for long rides?

In a good high way as single rider, we can cruise at 80-100 and 100-110 with aftermarket windshield ( supported by good day light). Above 110kmph wind blast will start to annoy. Above 140 handle will start to wobble. It can easily take to 160+ without effort but not at all recommended on safety concerns. For better cruising and mileage experience keep 100-120 kmph. If the engine is well tuned and maintained we can expect mileage 29-32kmpl which is very good for this power range.

Safe cruising speed in till max 120 km/hr if the road is free with good visibility. you cruise continuous for a hour also. The bike can speed more the 140 km/hr not at all advisable. Use helmet & Riding jacket etc.

0n interstates 70 to 80 mph is easily maintained. Of course at 70 mph your mileage is in the high 50s and at 80 mph your mileage is in the high 40s. Crusing in the 60s mph will achieve mid 60s mpg. It is a one up tourer and a magnificent twisties machine. A totally enjoyable ride.