Therefore the cyclist who pay attention to the news of the latest elements will be well informed on upgrading or installation of the latest releases on the market. For this reason it may be useful to replace the individual gear and break levers, without the need of replacing the entire groupset. Beyond that the seasoned Time Trial specialist and Triathletes appreciate the ability to add levers and shifters for the extensions are now widespread, by thus not having to take your hands of the position to change gears, saving precious seconds for the final. In the unfortunate event of accidents and falls is finally possible to repair a road bike or mountain bike - the levers are the most exposed components and easier to mess up - bringing it back to its original splendour without spending a fortune. In the road bike world we have many different brands of groupsets and components to choose from where as on the MTB we mainly have Shimano and Sram offering the ultimate reliability, robustness and cutting edge designs.