The Tarmac SL6 is the most comfortable bike in the Tarmac range. By using round carbon tubes instead of rectangular ones, the frame is a bit less stiff and therefore a bit more flexible. You especially notice this on bad road surfaces and cobbles. The frame absorbs more shocks than the SL7.

A thinner seatpost diameter has also been chosen, allowing the frame to flex a little more. This makes the SL6 feel a little less fast and aggressive but all the more comfortable.

The price range of the SL6 falls a bit more in the mid-range and the models' fittings are Tiagra 105 or Ultegra. Of course, there is also option to finish the bike according to personal preference.

For those looking for a smooth comfortable bike, but not immediately an endurance variant like the Roubaix,the Tarmac SL6 is a smart choice.