"YRRD parts are sold throughout Europe via the official Yamaha distributor network. For further information on specifications and availability please contact your local Yamaha dealer or national distributor."
Try looking up a dealer in the UK & call them direct. I did it when I had a KTM & couldn't get the parts I wanted into the country in a timely fashion. If you want/need the parts badly enough, paying the shipping costs isn't the end of the world, however the current exchange rates might be. Your profile doesn't say what part of the US you're in, but remember that dealerships in the UK are on GMT, so they're anywhere from 4-8 hours ahead of you.
Also, sometimes you can get the euro part #'s & if your local dealer is a good one, he'll figure out how to get the parts you need.
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