Greasby's auctioneers - Tooting auction house often selling bicycles
211 Longley Road, SW17 9LG (just by Tooting Rail Station)http://www.greasbys.com/

Psubliminal‎ - 17 Balham High Rd, SW12 9AJ‎ - 020 8772 0369‎ http://www.psubliminal.com/home/

Cyclopolis- 54 Balham High Road, SW12 9AQ - 020 8673 7153
http://www.cyclopolis.co.uk/

Halfords - 316/324 Balham Road, SW17 7AA - 020 8682 9996
http://www.halfords.com/

Crazy Horse - 275 Balham High Road, SW17 7BD - 020 8767 5614
http://www.crazyhorsebikeworkshop.co.uk/

De Ver Cycles - 632 Streatham High Road, SW16 3QL - 020 8679 6197
http://www.devercycles.co.uk/

 
Global Esprit - 525 Garratt Lane, Earlsfield, SW18 4SR - 020 8946 2352


Action Bikes‎ - 221 The Broadway, London, SW19 1SD‎ - 020 8540 0313‎
http://www.actionbikes.co.uk/

Moose Cycles - 48 High St, Colliers Wood, SW19 2BY - 020 8544 9166
http://www.moosecycles.com/

A W Cycles‎ - 23 Abbey Parade, Merton, SW19‎ - 020 8542 2534‎

Evans Cycles - 57 Clapham High St, SW4 7TG - 020 7720 4139
http://www.evanscycles.com/

Apex - 40-42 Clapham High St, SW4 7UR - 020 7622 1334
http://www.apexcycles.com/

Brixton Cycles - 145 Stockwell Rd,  SW9 - 020 7733 6055
http://www.brixtoncycles.co.uk/

Not ready to buy?
Try by renting a bike from http://www.londonbicycle.com/