Check policies with motorcycle breakdown. Most of the free ones attched to bike insurance have a £300 limit to each call out when you breakdown. £300 does not get you very far.
Last year I got a puncture on a saturday evening on the A303 near Popham. I called out the "Ebike" free breakdown cover.

45 minutes later the van from SOS Motorcycle Recovery turned up. My £300 cover will take you about 120 miles total before you have to start paying. Actually I should say - it will take you just 60 miles as they measure the distance from the point of breakdown to home and back to breakdown point.

http://www.sos-direct.co.uk/

Chatting to the breakdown guy and he said Some insurance free breakdown cover will only take you 10 miles to a garage. Read that small print on your policies. Even the AA has a cover on a call out to a bike.

I was stuck, 50 miles from home, in the rain and all alone - its that moment you realise you need cover