while on the Shimano-equipped bikes it will be Specialized’s own Power Pod. The Tarmac SL7 S-Works model with Di2 gears comes in at an impressive 6.7kg out of the box, in the 56cm frame size.
Less expensive builds start with the Tarmac SL7 Expert at £5,250 / $5,000 which has the same geometry and frame design, though with FACT 10r carbon and Shimano Di2. Specialized supply the Tarmac ...