Decisions, decisions… made easy. With a bike that gives you flat-out advantage on the climbs, the sprints and the straightaways, the only decision you’ll need to make is how nice you want to be to the other guys.
A rider-oriented design approach ensures a frame that is both rooted and responsive, with a ride experience most aero frames can’t match. With a layup engineered to maximise aerodynamics while keeping weight low, the design process for the Sum allowed us to strip away all unnecessary weight within the new aero profile tube shapes - all while maintaining maximum power transfer.
Argon 18 - Sum - Ultegra Di2
Frame
SUM
Fork
SUM specific
Headset
FSA Headset NO.55R 1.5'' + 3D
Integrated Cables
Yes
Wheels
Wheels
Scope R4
Tires
Vittoria Corsa N.EXT TLR 28mm
Tire Clearance
30C (32mm)
Group
Bottom Bracket
BB Ultegra SM-BB72
Front Derailleur
Shimano Ultegra Di2 R8150
Rear Derailleur
Shimano Ultegra Di2 R8150
Crankset
Shimano Ultegra R8100 52/36
Chain
Shimano Ultegra CN-M8100
Cassette
Shimano Ultegra CS-R8100 11-30
Brakes
Brakes
Shimano Ultegra Di2 R8170
Rotors
Shimano Ultegra RT-CL800 / F:160mm R:140mm
Shifters
Shimano Ultegra Di2 R8170
Other Components
HandlebarWidth chart
FSA Energy SCR Compact
StemLength chart
FSA SMR-II
Bar Tape
Ciclovation LEATHER TOUCH Tornado Gloss
Saddle
Repente Quasar
Seatpost
SUM specific