Give Peak Performance in Exeter a call (01392 255 000). Steve rebuilt an MC21 shock for me (well, for nsrmonkey!) a couple years ago, and I am sure will have re-valved and re-sprung dozens of CBR600 shocks in the past.
He did have a bit of a moan about the NSR shock though, as it's not easily rebuilt apparently! I don't think he will do NSR shocks any more.
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Andy.
NSR-WORLD.COM
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