Scott debuts the Foil Disc

The first aero bike to win Paris-Roubaix goes hydraulic for 2018

Ahead of the 2015 Tour de France, Scott’s aero platform the Foil received a head-to-toe redesign, morphing from a body busting-ly stiff frameset to a more comfortable, more traditional aero-looking frame.

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Since then it has seen accolades the world over, including becoming the first aero bike to win on the cobbles at Paris-Roubaix.

In passing, a Scott product manager even told me that the Orica riders’ Addict frames were collecting dust because the pro racers can ride the Foil everywhere, except mountain stages.

Both sides of the fork have aerofoils
Both sides of the fork have aerofoils
Colin Levitch / Immediate Media

With every bike brand now jumping on the disc brake train, we’re also beginning to see more aero bikes sporting hydraulics; Giant just launched the Propel Advanced Disc, for example. For Scott, which launched the Addict Disc last year, now we have the Foil Disc.

Other than the rotors and hydraulic calipers, the most noticeable difference to the Foil Disc is on the fork. Thanks to the UCI relaxing the 3:1 aerofoil rule, Scott has shrouded the flat-mount brake caliper on the fork to smooth airflow over the structure.

The rear of the bike is said to accept a 30mm tire. Here we've got a 28mm
The rear of the bike is said to accept a 30mm tire. Here we’ve got a 28mm
Colin Levitch / Immediate Media

According to Scott, the different profile of the fork with the fairings on both sides add up to a reduction of half a watt at 40kph compared to the previous Foil’s fork. 

The fork also sees internal routing for the brake hose and can accommodate a 30mm tire. Notably, the bikes will come stock with 28mm tires, large even by today’s wide standards.

Scott partially shrouds the caliper on the Foil Disc
The caliper itself is partially blocked by the fork
Colin Levitch / Immediate Media

Beyond the fork, the rest of the front triangle is identical to the rim brake version, including the lowered transition between the down tube and head tube to eliminate the gap behind the fork crown.

Also carried over from the rim-brake bike is the PF86BB bottom bracket and extremely wide shell that Scott says is 13 percent stiffer than the previous Foil.

The Foil Disc sees a PF86BB
The Foil Disc sees a PF86BB