My 2018 Cervélo R3/Disk_FSA/SLK Carbon crank, and the Shimano Deore XT M8000 SPD XC Race Pedals, Acording to the "Propaganda" by means of the Bike Radar Review of the R3/Disk - By using a custom spec FSA/SL-K cranks and chainset with a 5mm offset to ensure the correct chainline, the R3 has managed to maintain short 405mm chainstays rather than having to shift to the 415mm recommended by disc brake manufacturers. This should help retain the bike’s race-ready handling while keeping the improved braking offered by discs. Trust me, I am not sure of the specific engineering involved, but the bike keeps its awesome mix of aggressive geometry and super-low weight, all wrapped up in a whip-fast-handling machine.