A full custom built frame by ZEROFOUR will make you more efficient and will be the best bike you will ever own. Our full custom geometry option means that if you can't find the right size of stock geometry, need woman specific sizing or even want an existing geometry replicated we can provide this within our standard price. Your frame is an extension of your body and therefore fit is  one of the most important factors in selecting a bicycle. The human body is a very forgiving machine and will adapt to an inappropriate fit on the bike without you realising, but in doing so the possibility of injury is significantly increased and your potential efficiency and comfort is severely restricted. So how do you know your fit is optimum? Some people use personal intuition, some use generic shop derived fit formulas, however this is only just the start. The only true way to get a correct fit and optimum comfort is to custom make a frame taking into consideration more than just the rider’s physical dimensions. We want to take into account your flexibility, strength,  fitness as well as considering past or present injuries and preferences. Whilst two subjects may have very similar physiques they will have quite different needs in that which they require from a new bike. The first steps to getting your hands on your new masterpiece is to take a few body measurements from our instructions or visit us for a fitting (by appointment). In order to optimise your fit we need to know all about you; your cycling discipline, your preferences, riding style, past and present injuries and if you suffer from any discomfort in any areas. Next we want to know the dimensions of your existing bike so we can cross reference it with the new frame design, seeing your current set up gives us a good idea of what works for you and what needs correction. All this information allows us to build you a bike that performs and fits like no other you have owned. We can also incorporate things that you like and remove the things you dislike.
Measuring Instructions INSIDE LEG 1) Stand in socks or barefoot with your heels and buttocks against a wall, feet approx. 8" apart. Place a spirit level or hardback book (approx 1" wide) between your legs and push up against your crotch firmly, roughly applying 25lbs of pressure, thus mimicking saddle pressure. With the spirit level level or the book flat against the wall take a measurement from the floor to the top of the book or level (fig 1). 2) STERNUM NOTCH Now in the same position as above measure from the ground to your sternum notch, this is the base of the v just above your rib cage ( fig 2). 3) ARM LENGTH With your arm held out to your side parallel to the ground, measure in a straight line from the inside of your armpit (just touching your ribs) to the web between your thumb and index finger (fig 3). SHOULDER WIDTH Measure your shoulder width from the outside of the bony protrusions at the top of each shoulder. WEIGHT Record your current weight (either metric or imperial is acceptable). FOOT SIZE Record your cycle shoe size. FLEXIBILITY Can you touch your toes or how far can you get?
OLD BIKE MEASUREMENTS Graphic will appear here shortly.
ROAD       STD HEAD TUBE           EVOLUTION SEAT TUBE C/T TOP TUBE C/C HEAD ANGLE HEAD TUBE LENGTH SEAT ANGLE CHAIN STAY B/B DROP SEAT POST DIA FR MECH SIZE small 460mm 520mm 71 110mm 74 405mm 70mm 27.2mm 31.8mm medium 520cm 540mm 72 130mm 73.5 405mm 70mm 27.2mm 31.8mm large 550mm 560mm 73 160mm 73 405mm 70mm 27.2mm 31.8mm extra large 580mm 580mm 73.5 190mm 73 408mm 70mm 27.2mm 31.8mm                     EVOLUTION                   AUDAX / WINTER       STD HEAD TUBE           small 460mm 520mm 71 110mm 74 420mm 70mm 27.2mm 31.8mm medium 520mm 540mm 71.5 130mm 73.5 420mm 70mm 27.2mm 31.8mm large 550mm 560mm 72 160mm 73 420mm 70mm 27.2mm 31.8mm extra large 580mm 580mm 72.5 190mm 73 420mm 70mm 27.2mm 31.8mm                   REVOLUTION       INTERGRATED HEAD TUBE, STD AVAILABLE 20MM SHORTER THAN SHOWN   small 480mm 520mm 71 120mm 74 405mm 70mm 31.6mm 34.9mm medium 520mm 540mm 72 135mm 73.5 405mm 70mm 31.6mm 34.9mm large 550mm 560mm 73 165mm 73 405mm 70mm 31.6mm 34.9mm extra large 580mm 580mm 73.5 195mm 73 408mm 70mm 31.6mm 34.9mm                     WORKS SL/HP       INTERGRATED HEAD TUBE, STD AVAILABLE 20MM SHORTER THAN SHOWN   small 480cm 520mm 71 120mm 74 405mm 70mm 31.6mm 34.9mm medium 520cm 540mm 72 135mm 73.5 405mm 70mm 31.6mm 34.9mm large 550mm 560mm 73 165mm 73 405mm 70mm 31.6mm 34.9mm extra large 580mm 580mm 73.5 195mm 73 408mmm 70mm 31.6mm 34.9mm                                         TIME TRIAL/                   TRIATHALON       STD HEAD TUBE           TRITANIUM SEAT TUBE C/T TOP TUBE C/C HEAD ANGLE HEAD TUBE LENGTH SEAT ANGLE CHAIN STAY B/B DROP SEAT POST DIA FR MECH SIZE small 520cm 510mm 71.5 100mm 78 388mm 67mm 27.2mm braze on medium 550mm 530mm 72.5 110mm 78 388mm 67mm 27.2mm braze on large 580mm 560mm 72.5 135mm 78 388mm 67mm 27.2mm braze on extra large 610mm 575mm 72.5 165mm 78 388mm 67mm 27.2mm braze on                     INFINITY T       INTERGRATED HEAD TUBE         small 480mm 520mm 71.5 110mm 76 395MM   AERO INC   medium 510mm 540mm 72.5 140mm 76 395MM   AERO INC   large 540mm 560mm 72.5 160mm 76 395MM   AERO INC   extra large 580mm 580mm 72.5 185mm 76 395MM   AERO INC                                           MTB ALL DESIGNED FOR 100MM FORK STD HEAD TUBE           9INE TI SEAT TUBE C/T TOP TUBE C/C HEAD ANGLE HEAD TUBE LENGTH SEAT ANGLE CHAIN STAY B/B HEIGHT SEAT POST DIA FR MECH SIZE small 15.5" 555mm 70.5 100mm 74 430mm 300mm 27.2mm 31.8mm medium 17" 580mm 70.5 110mm 73.5 430mm 300mm 27.2mm 31.8mm large 18" 600mm 71 110mm 73 430mm 300mm 27.2mm 31.8mm extra large 19" 620mm 71 130mm 73 430mm 300mm 27.2mm 31.8mm                     CARBON WORKS       STD HEAD TUBE           small 15.5 555mm 70.5 100mm 74 425mm 300mm 31.6MM 34.9 CONV medium 17 575mm 70.5 110mm 73.5 425mm 300mm 31.6MM 34.9 CONV large 18" 600mm 71 110mm 73 425mm 300mm 31.6MM 34.9 CONV extra large 19 620mm 71 130mm 73 425mm 300mm 31.6MM 34.9 CONV
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