The first of my unannounced visits to bike shops started with Bike Zone, Oxford
Apart from the usual cycles, accessories and a workshop, its aso features Zappi's Bike Cafe, owned by Italian ex-pro rider Flavio Zappi, who now is based in Oxford and is putting back a lot of skills into cycling. Have a look at his website: www.flaviozappi.com He also sells his own bike brand from the shop.
The cafe has a nice friendly atmosphere, polite staff and the best coffee I've tasted for a long time (and I'm very fussy about my coffee!), along with good food. Recommended.
Below: Mrs Editor enjoying the delights of Zappi's Bike Cafe. Bottom: The exterior of Bike Zone in St. Michael Street, Oxford.