The history of the Specialized Tarmac: As the much-anticipated Tarmac SL8 finally gets its official launch, we thought we'd take a look at all nine generations of this legendary bike. Which Tarmac are you? cycling
. Despite it looking rather similar to the SL2, changes were made to the construction of the bike to increase stiffness and decrease weight.
This resulted in a bike that was 150g lighter than its predecessor, with a claimed 18% increase in rear stiffness.Only 12 months after Specialized unleashed the Tarmac SL3, a new model - the SL4 - was rolled out, boasting a 19% increase in stiffness-to-weight ratio. Reports also suggested that the frame itself was about 50g lighter than the SL3.
On the surface, it looked like little had changed on the SL5 except for the addition of disc brakes - however, the whole frame was changed and engineered from the outset with disc brakes in mind. The fork blades were slim, the seat stays dropped further down the seat tube and there was a D-shaped profile for the seat tube and seatpost. The rear brake was also tucked lower down out of the airflow.
Claiming to be 45secs faster over 40km than the Tarmac SL6, Specialized said it targeted the tubes that truly impact the aero performance of the frame and used the"fastest components" such as theThis was the year that the Tarmac ditched rim brakes, with all models available with hydraulic disc brakes only, and now had fully hidden brake hoses and cables., the Tarmac SL8 has finally had its official launch.
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