I'd second Brixton Cycles - one of the few LBSes that I've ever actually enjoyed going into. Dunno whether they do hydraulics, but they have loads of MTBs around the shop.
@NickCJ started
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I'd second Brixton Cycles - one of the few LBSes that I've ever actually enjoyed going into. Dunno whether they do hydraulics, but they have loads of MTBs around the shop.