Bicycle frames are constructed from materials which place emphasis on being strong, lightweight and stiff to aid power transfer. Aluminium, titanium, steel and carbon are widely used in all levels of frame production.
Major bike manufacturers produce a new range of bikes on an annual basis and this determines the model year of a particular bike. This annual turnover is fuelled by advancing technology, industry trends and customer demand for a particular feature or style of bicycle.
Time trial and triathlon racing bikes are becoming highly advanced machines, with more and more research and development being invested in them to bring out the fastest most aerodynamic machine for the pro riders, the best thing about this is that all this is made available for the public as well. Time Trial and Triathlon bikes have come a long way in recent years with new technology and materials being implemented. The technology hasn't stopped at just the frame either, wheels and aero bars have received a lot of attention along with the rest of the components, TT and tri racing bikes are becoming featherweight, aerodynamic machines helping to reduce your times. Carbon fibre, aluminium and titanium are all used to produce the lightest, stiffest and most aerodynamic frames, wheels and components. All these materials have their advantages when used correctly and can be combined to create some truly exotic machines.