The Kinesis Racelight 4S Disc is the descendent of the market leading all-round fast training bike that was the Racelight TK. Using Kinesium, the same proprietary alloy that gave the TK such an engaging and refined ride, the 4S has been significantly revised to deliver true 4-Season performance and capability.
Cycling Plus 2017 Winter Bike Test Winner!
Kinesis brings us the 4S which stands for four season-an appropriate moniker for a British-designed frame, as we often feel we've seen every season in one day.
The frame's performance and ride quality makes a versatile bike that doesn't give much away to race machines.
Although called the 4S “Disc”, it can be built either deep-drop rim brakes or with disc brakes. And all without compromising the clearance that enables the fitting of wider tyres – up to 32mm without mudguards and 30mm with.
The tuned Kinesium tubing is tough, light and delivers outstanding levels of comfort. The ride is agile and engaging, just as the Racelight TK was before it, with the option of disc brakes for unrivalled stopping power and control, whatever the season. Refinements to the frame include that improved tyre clearance, along with full internal cable routing and Di2 compatability. Integrated and discrete mudguard mounts are key to its place as a winter training and commuting favourite, while rear rack mounts make the Racelight 4S suitable for light touring. Strip it all back howvere, and you have a high performance bike for all-round riding, whatever the surface, with plenty of comfort for long hours in the saddle.
The geometry is the same classic road geometry that Kinesis have used for over a decade and a half in establishing themselves as the default for club riders looking for a winter=proof bike that doesn’t mean a big change of position compared to their race or “Sunday best” bike.
The Kinesis Racelight 4S comes to us as a frameset, which can then be built up into a complete bike in our workshop using components of your choice. All three colour schemes offer a deep lustrous metallic finish, with matching full carbon forks.