Wot Ed Said. The SA 5 speed appears to have internals made of Depleted Uranium, and weighs 1.06kg, and the Marathon Plus tyres are over twice the weight of Kojaks - 475g compared to 230g. It's still noticeably easier to carry than the Rat Brompton (largely standard M6L with Marathon Pluseseses) though.
Wot Ed Said. The SA 5 speed appears to have internals made of Depleted Uranium, and weighs 1.06kg, and the Marathon Plus tyres are over twice the weight of Kojaks - 475g compared to 230g. It's still noticeably easier to carry than the Rat Brompton (largely standard M6L with Marathon Pluseseses) though.