I went with all the extras for a while as it wasn't much more than std TPFT for me. However I just re insured and kept it bare bones.
Helmet and clothing cover is pretty pointless as mine is worthless (12 year old Hein Gerike kit that leaks, helmet is probably 7 years old and I'd replace it if I could justify the expense)
Breakdown: Covered with AA as a family in any vehicle so not needed (this year). This is the one thing I would always have though as gettign towed to a garage has happened for me about 5 times in 12 years. 4 of those were punctures. Once I have plugged a puncture with the 'tip-top' kit, it isn't the easiest thing, the first attempt broke the tool, the second broke the plug, the third worked but the plug wasn't in quite right.
Legal cover: If you have a case then you will reclaim costs from the other party anyway (or no win no fee), plus I get legal cover with house insurance (which includes two free wills too)
Fully comp? When the bike list value is probably £750 is it worth it? Excesses (both compulsory and voluntary) are added together. The std Bennets comp excess was £200, plus the default voluntary excess was £300. So it wouldn't be worth making a claim for the hit on future moto and car insurances.
Protected no claims? Irrelevant as you can switch to another provider who really care about the claim history. Plus if you don't expect to make a claim if you bin it yourself......
I'm starting to wonder if I should just for third party only! Fire is unlikely. Theft is possible, bike is kept on the street. But had no aggro in the last 2 years here...
Insurance its all a con.
FWIW I'm in London and pay £80 TPFT for a 2000 reg FZS600. Maybe I should have shopped around a bit more.