
The Vuelo Velo ''1'' track bike is the creation of Martin Renwick (Marty). This has to be one of the most beautiful and head turning bikes I have seen, it stole the limelight at the NAHBS this year, and you can see why. Made from Titanium and designed from the ground up, Marty has amalgamated form and function in such an impressive way, a hard thing to get right, but successfully achieved in the Vuelo Velo bike range. The Vuelo Velo range is being exhibited in all the best bike shops in New York... however I hear talk of one or two coming this way soon - Will keep you posted!
More Info:
The pictured Vuelo Velo “1″ Track bike has a 55 cm effective top tube, a 74 degree head angle and 38 mm of fork rake, the effective seat angle is 73 degrees. So there is nothing that steps outside the bounds of normal body positioning in that mix. The rear end however, is 360 mm (BB center to rear axle center), that’s short!
The seat tube curve facilitates a shorter rear end, and a degree of compliance vertically, due to the increased seat tube exit angle and the inherent movement that Titanium can so alluringly allow. This is carefully controlled with tube wall thickness, diameter and curve diameter for each individual rider (totally custom).
2 bikes at NAHBS had Shimano BB86 Ti shells, and another a Campagnolo BB90 Ti shell, this design is to facilitate a broader chain-stay setting (attachment width) on the BB, which creates a greater mechanical leverage advantage at the root. The design also allows the use of big bag tyres with plenty of clearance, our “Copenhagen” runs 35 mm tyres with ample room to spare, even if you break a spoke.
The “Wishbone” or dual chain-stay design is about creating more lateral rigidity via quite substantial ovalization, in my opinion this is one of the only places where ovalization can really work for you substantially on a bicycle. The amount of metal you are putting to work to resist lateral force, has a direct effect on creating compliance in the vertical plane where it is reduced. Trek and Giant have taken the BB root width route with their Carbon Road frames, but the “Wishbone” is another approach to the constant bike frame design dilemma/grail – rigidity versus comfort.