Not neccessarily... Motor policies are by defintion not replacement policies, such as the majority of home insurers, so their duties only involve indemnifying you in respect of your bike. It's your responsibility to find a replacement and they will pay you an approriate sum to do that, ie the market value according to them, not you... Replacements usually only occur when the vehicle is under 1 year old.
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NSR300R - Why did i ever have a 250...