K-tech did mine (mc28se's), but if you''re watching the pennies be aware they know how to charge, the bill reads like this;

£60 - modify, machine and fit 20mm kit
£221.28 - piston kit conversion
£12.50 - oil seal * 2
£11.36 - slide bush * 2
£12.40 - dust seal * 2
£55.32 - 8.0N spring * 2
£10.00 - 2nd hand adjusters (mine were siezed solid)

On the track it's about a million times better than I am and a huge improvement especially under braking where it was really squirmy before and it didn't like to settle when you let them off either.

It's a bit too firm for the road now.
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