Have a look here. Anyone into bikes will know that Phase One are the UKs most successful endurance race team....

Big thumbs up from me to Phase One - I bought most of my Yamaha kit from them and they were great to deal with.

Very reasonable prices and they can tell you everything about the part you've bought!

Blatted off an email. Cross your fingers for me
(Well spotted by the way).

Some bargains there or what?

Direct Link to their site:

PHASEONE

Best to try them at the start of a new season - they get their bikes from Mr Yamaha, strip them down and sell the bits they don't need at great prices.