Motorbike insurance at £2000 - too high?

I just bought a Honda CG 2002 124cc bike. I have a CBT. I have no NCB and have not driven a car or bike before (but have had a provisional license for 5 years). I live in London. The bike will be kept in a driveway and used for commuting to work.

Given all of this, the lowest insurance quote I'm getting is £1780 p/a on any of the major comparison websites. This seems very high or is it about right?

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