ZoomArgon 18
SUM Ultegra Di2 Road Bike - Smoked Nickel (2025)
- Spread the cost over 6, 12, 24 or 36 months
- 0% APR Finance available on 6, 12, 24 months for orders over £250
- 0% APR Finance available on 36 months for orders over £1500
- Pay as little as 10% deposit
All Together Faster
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.
Specification:
Frame: SUM
Fork: SUM specific
Headset: FSA Headset NO.55R 1.5'' + 3D
Handlebar: FSA Energy SCR Compact
Stem: FSA SMR-II
Bar Tape: Ciclovation LEATHER TOUCH Tornado Gloss
Saddle: Repente Quasar
Seatpost: SUM specific
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 12S
Cassette: Shimano Ultegra CS-R8100 11-30
Brakes: Shimano Ultegra Di2 R8170
Rotors: Shimano Ultegra RT-CL800 / F:160mm R:140mm
Shifters: Shimano Ultegra Di2 R8170
Wheels: Scope R4
Tires: Vittoria Corsa N.EXT TLR 28mm
Tire Clearance: 30C (32mm)
All Together Faster
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.
Specification:
Frame: SUM
Fork: SUM specific
Headset: FSA Headset NO.55R 1.5'' + 3D
Handlebar: FSA Energy SCR Compact
Stem: FSA SMR-II
Bar Tape: Ciclovation LEATHER TOUCH Tornado Gloss
Saddle: Repente Quasar
Seatpost: SUM specific
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 12S
Cassette: Shimano Ultegra CS-R8100 11-30
Brakes: Shimano Ultegra Di2 R8170
Rotors: Shimano Ultegra RT-CL800 / F:160mm R:140mm
Shifters: Shimano Ultegra Di2 R8170
Wheels: Scope R4
Tires: Vittoria Corsa N.EXT TLR 28mm
Tire Clearance: 30C (32mm)
