The Bris­tol mas­sive wowed the crowds with a lightweight alu num­ber

Urban Cyclist - - Bespoked -

Engi­neered­be­tweenand char­tered graphic Bi­cy­cles en­gi­neer de­signeris a col­lab­o­ra­tionDavid Adrian Fong. Ri­d­leyThe team are ex­perts in all bike ma­te­ri­als but it was this alu­minium num­ber that drew ad­mir­ing glances from the Bris­tol crowds. “It’s a fixed-gear bike we made for hill- clim­ber Joe Norledge,” ex­plains Ridley. “That’s why it weighs just 5.1kg – and that’s with ped­als and a power me­ter.” which con­tin­uesThe is heart also withof re­al­lythe the bik­eraw stiff. alu is That su­perlight re­main­ing lightweight scan­dium un­paint­edtheme al­loy, and un­lac­quered to save a fur­ther 300g. Bead-blast­ing the graphic also saved a gramme or two. It’s pretty ex­treme but things could have been even more se­vere. “We had some crazy ideas about drilling the bot­tom bracket to make it lighter but we would have sac­ri­ficed a lot of that power trans­fer and the han­dling,” says Ridley. “It’s what the hill climbers of the late 60s and early 70s used to do; they used to drill holes in To pay homage to times ev­ery gone com­po­nent.”by, Engineered de­cided on a pat­tern that looked as if some­one had in­deed drilled holes in Joe’s bike. “Each ‘hole’ is off­set at 60° be­cause that’s struc­turally sound,” adds Ridley, “so if we were to drill the frame, that’s ex­actly where we would drill it. In short, we’ve prop­erly nerded it out!”

“We had some crazy ideas about drilling parts but that would have sac­ri­ficed power trans­fer”

David Fong CHAR­TERED EN­GI­NEER “Our phi­los­o­phy at En­gi­neered is that form fol­lows func­tion, and so source the most suit­able ma­te­rial needed to pro­vide low weight and pos­i­tive rid­ing char­ac­ter­is­tics. “We en­cour­age our cus­tomers to bring a story or a...

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