insurance alters so much on things like post code, where its stored and even your job. (i pay extra because i am a traffic warden)
i used to pay 104 but i had 1 non fault knock off and they wrote the bike off. i didnt lose my no claims but because the bike was written off i had to change insurance. i now pay 300+
it jumped because of 1) job changed 2) bike is write off 3) i had a claim but i still have my no claims bonus.
but i would take a shot at 180