Or Promax ones: http://www.bikecare.co.uk/product_info.php?id=443 http://www.electricbikesales.co.uk/shop/accessories/mobility/dual-brake-lever-promax/prod_649.html
Or these (not so good): http://www.ebay.co.uk/itm/Caliper-Cantilever-Bike-Dual-Cable-Brake-Lever-Pull-freno-bici-trike-tricycle-/230992467896?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item35c83957b8
@JonoMarshall started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Or Promax ones:
http://www.bikecare.co.uk/product_info.php?id=443
http://www.electricbikesales.co.uk/shop/accessories/mobility/dual-brake-lever-promax/prod_649.html
Or these (not so good):
http://www.ebay.co.uk/itm/Caliper-Cantilever-Bike-Dual-Cable-Brake-Lever-Pull-freno-bici-trike-tricycle-/230992467896?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item35c83957b8