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- SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)
![SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)](https://content.westbrookcycles.co.uk/large/1db4ca97_sumpro4.jpg)
![SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)](https://content.westbrookcycles.co.uk/large/df6d73d8_sumpro3.jpg)
![SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)](https://content.westbrookcycles.co.uk/large/1db4ca97_sumpro4.jpg)
![SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)](https://content.westbrookcycles.co.uk/large/df6d73d8_sumpro3.jpg)
Argon 18
SUM Pro - Ultegra Di2 Road Bike - Crystal Black (2024)
- Spread the cost over 12, 24 or 36 months
- Pay as little as 10% deposit
All Together Faster
Meet the best of the best: aero to match the Nitrogen, pure road performance to match the Gallium Pro, with race-ready handling and premium ride quality. The all-new Sum Pro features our most advanced layup and technologies to get you to the front of the group and keep you there, through the climbs, the corners, and the sprints.
Quiver-killer? You want more than that. From the climbs to the crits, you’ll accept no compromises in aero performance, lightweight advantage, and flat-out, bunch sprint handling.
3D System
Get the best fit window without compromising the safety, steerer stiffness, or looks of your bike with Argon 18's 3D Technology.
Road Race Geometry
Our road race geometry is designed around the razor-sharp reflexes and precision handling required for racers of all levels.
Topological Compliance System
To achieve the optimal balance of comfort and performance for our endurance line, we needed geometry uniquely aligned with the demands of long-distance riding and racing. In conjunction with the best geometry, we also needed to optimise frame topology and carbon layup.
Argon Fit System
Argon Fit System is designed to provide riders of all sizes with consistent performance and optimal positioning.
Pro Level Layup
We leave no room for compromise when we build bikes for the most demanding and passionate cyclists.
Specification:
Frame: Sum Pro
Fork: Sum Pro Specific
Front derailleur: Shimano Ultegra Di2 R8150
Rear derailleur: Shimano Ultegra Di2 R8150
Shifters: Shimano Ultegra Di2 R8150
Rotor: Shimano RT-M800 / F:160mm R:140mm
Crankset: Rotor ALDHU-R INSPIDER Powermeter 52/36
BB: Shimano SM-BB72
Chain: Shimano Ultegra CN-M8100
Cassette: Shimano Ultegra C-R8100 11-30
Headset: FSA ACR NO.55R 1.5''
Stem: FSA ACR ST-OS-160
Handlebar: FSA SL-K SCR Compact
Bar tape: Ciclovation LEATHER TOUCH Tornado Gloss
Saddle: Repente Prime 3.0
Seatpost: Sum Specific SP
Tires: Vittoria Corsa Pro 700x28c
Wheelset: ZIPP 303S
Note: Image for display purposes only, for exact spec please see description
All Together Faster
Meet the best of the best: aero to match the Nitrogen, pure road performance to match the Gallium Pro, with race-ready handling and premium ride quality. The all-new Sum Pro features our most advanced layup and technologies to get you to the front of the group and keep you there, through the climbs, the corners, and the sprints.
Quiver-killer? You want more than that. From the climbs to the crits, you’ll accept no compromises in aero performance, lightweight advantage, and flat-out, bunch sprint handling.
3D System
Get the best fit window without compromising the safety, steerer stiffness, or looks of your bike with Argon 18's 3D Technology.
Road Race Geometry
Our road race geometry is designed around the razor-sharp reflexes and precision handling required for racers of all levels.
Topological Compliance System
To achieve the optimal balance of comfort and performance for our endurance line, we needed geometry uniquely aligned with the demands of long-distance riding and racing. In conjunction with the best geometry, we also needed to optimise frame topology and carbon layup.
Argon Fit System
Argon Fit System is designed to provide riders of all sizes with consistent performance and optimal positioning.
Pro Level Layup
We leave no room for compromise when we build bikes for the most demanding and passionate cyclists.
Specification:
Frame: Sum Pro
Fork: Sum Pro Specific
Front derailleur: Shimano Ultegra Di2 R8150
Rear derailleur: Shimano Ultegra Di2 R8150
Shifters: Shimano Ultegra Di2 R8150
Rotor: Shimano RT-M800 / F:160mm R:140mm
Crankset: Rotor ALDHU-R INSPIDER Powermeter 52/36
BB: Shimano SM-BB72
Chain: Shimano Ultegra CN-M8100
Cassette: Shimano Ultegra C-R8100 11-30
Headset: FSA ACR NO.55R 1.5''
Stem: FSA ACR ST-OS-160
Handlebar: FSA SL-K SCR Compact
Bar tape: Ciclovation LEATHER TOUCH Tornado Gloss
Saddle: Repente Prime 3.0
Seatpost: Sum Specific SP
Tires: Vittoria Corsa Pro 700x28c
Wheelset: ZIPP 303S
Note: Image for display purposes only, for exact spec please see description