http://www.ebay.co.uk/itm/190889697071Hi Alan, Same here, since the E conversion I mostly use the smallest and the next one up. Just what I was thinking when I was fitting the new cassette, surely someone sells these separately, but I haven't found any yet, post a link if you come across them again, Cheers.
I've not used this guy, can't vouch for him, just an example.
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