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Argon 18 SUM

Argon 18 SUM
  • Color: Race Day Red Gloss
  • Color: Race Day Red Gloss
  • Color: Race Day Red Gloss
  • Color: Race Day Red Gloss
  • Color: Podium Grey Gloss
  • Color: Podium Grey Gloss
  • Color: Podium Grey Gloss
  • Color: Podium Grey Gloss
  • Color: Podium Grey Gloss
$6,499.99 - $8,749.99
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Details

Own the season: the Sum will get you ahead on the climbs, keep you there on the flats, and power you through the sprints. Featuring the same optimal balance of aero and weight as the Sum Pro, the Sum is your all-around KOM-hunter.

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.

Ideal for
From the classics to the centuries, the Sum is engineered to keep you in churning out the watts no matter what the course - or the competition - throws at you.

The Argon Fit System is designed to provide riders of all sizes with consistent performance and optimal positioning. Regardless of your build, gender or your riding style, our frames are designed so that your fit will always be efficient and comfortable, ensuring the ultimate in handling. We offer sizing from XXS to XL in all of our road bikes, and XS to XL in our Tri bikes, with each size approached individually from a design and performance perspective. While a lot of manufacturers optimise performance and weight targets for a medium size frame and simply scale up or down, we assess the performance of each size based on the individual character of that particular geometry. For example, even our largest frames have exceptional stiffness without excess weight, to avoid the 'dead' feel found in some XL frames. XS and XXS retain their inherent lightweight qualities, but without excess stiffness, avoiding harsh ride quality.

Our performance road geometry prioritises the needs of racers: holding a low, aero position, having confident handling on technical courses and in bunch sprints, and highly efficient power transfer. These bikes often feature aero tube shapes or tube shapes designed for maximum stiffness at key areas, like the bottom bracket. A lower front end and longer top tube than our endurance geometry let you achieve that aero position, and a narrower wheelbase provides the razor-sharp reflexes for those tight corners and quick handling in the bunch. Argon 18 bikes have a lower bottom bracket than most, which makes these bike exceptionally stable, and enhances their renowned ride quality.

We believe the discerning cyclist deserves more than just trickle-down technology. We make sure our Elite level bikes benefit from the same attention to detail and offer the same riding characteristics as our Pro level ones. From their carbon layup right down to the smallest parts, all aspects of their design are optimized so that they are guaranteed to be overachievers in their own right.

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. Through extensive research and analysis of stiffness, resistance, and aerodynamics using FEA and CFD software, we designed frames and forks that offer exceptional vertical compliance and dampens road-induced vibrations. At the same time, they needed to remain impervious to lateral movement, thus ensuring maximum pedaling efficiency for optimal power transfer. Our Topological Compliance System (TPS), was validated by numerous iterations of frame and fork designs tested both on the road and in our research and development laboratory using proprietary vibration testing tools.

We believe a good fit is the key to optimal performance. Argon 18’s proprietary 3D System is an integrated solution that extends the headtube for more flexible positioning options. Three headtube positions are possible for every frame size, increasing stiffness by 5% at 15mm and 11% at 25mm, versus traditional spacers. It allows also a larger fit windows (60mm of stack adjustment compared with 30 for a traditional setup). With this system, the handlebar height can be perfectly adjusted to meet the needs and preferences of every rider.

Specs

Frame Sum Specific
Fork Sum Specific
Headset FSA ACR NO.55R 1.5"
Rims Force: Hunt 4 Season XDR / Rival: Team 30 XDR / Ultegra: ??
Tires Rubino Pro TLR G+ 700x25
Crankset SRAM Force DUB / SRAM Rival DUB / Shimano Ultegra
Chainwheel 48/35 / 48/35 / ??
Bottom Bracket SRAM DUB PF 86.5 / SRAM DUB PF 86.5 / ??
Chain SRAM Force 12S 141L / SRAM Rival 12S 141L / ??
Rear Cog(s) SRAM XG 1270 10-28T XDR / SRAM XG 1250 10-30T XDR / ??
Handlebars FSA Energy SCR Compact
Tape/Grips Ciclovation Leather Touch Tornado Gloss
Stem FSA ACR ST-OS-160
Brakes SRAM Force / SRAM Rival / Shimano Ultegra
Saddle Repente Quasar
Seat Post Sum Specific

* Subject to change without notice.

Part Numbers

Option MPN Store SKU
SRAM Force AXS / Race Day Red Gloss / XX-Small SUM.XXS.353B.2E.2 SUM33552177S
SRAM Rival AXS / Race Day Red Gloss / XX-Small SUM.XXS.353B.3E.1 SUM33497848S
Shimano Ultegra Di2 / Race Day Red Gloss / XX-Small SUM.XXS.353B.2D.3 SUM35824468S
SRAM Force AXS / Race Day Red Gloss / X-Small SUM.XS.353B.2E.2 SUM3277749S
SRAM Rival AXS / Race Day Red Gloss / X-Small SUM.XS.353B.3E.1 SUM32342497S
Shimano Ultegra Di2 / Race Day Red Gloss / X-Small SUM.XS.353B.2D.3 SUM34371994S
SRAM Force AXS / Race Day Red Gloss / Small SUM.S.353B.2E.2 SUM31581188S
SRAM Rival AXS / Race Day Red Gloss / Small SUM.S.353B.3E.1 SUM31841163S
Shimano Ultegra Di2 / Race Day Red Gloss / Small SUM.S.353B.2D.3 SUM33743442S
SRAM Force AXS / Race Day Red Gloss / Medium SUM.M.353B.2E.2 SUM31561603S
SRAM Rival AXS / Race Day Red Gloss / Medium SUM.M.353B.3E.1 SUM26694778D
Shimano Ultegra Di2 / Race Day Red Gloss / Medium SUM.M.353B.2D.3 SUM33282898S
SRAM Force AXS / Race Day Red Gloss / Large SUM.L.353B.2E.2 SUM31539343S
SRAM Rival AXS / Race Day Red Gloss / Large SUM.L.353B.3E.1 SUM31239555S
Shimano Ultegra Di2 / Race Day Red Gloss / Large SUM.L.353B.2D.3 SUM33333995S
SRAM Force AXS / Race Day Red Gloss / X-Large SUM.XL.353B.2E.2 SUM32496793S
SRAM Rival AXS / Race Day Red Gloss / X-Large SUM.XL.353B.3E.1 SUM32151103S
Shimano Ultegra Di2 / Race Day Red Gloss / X-Large SUM.XL.353B.2D.3 SUM34793494S
SRAM Rival AXS / Podium Grey Gloss / XX-Small SUM.XXS.353A.3E.1 SUM33443193S
SRAM Rival AXS / Podium Grey Gloss / X-Small SUM.XS.353A.3E.1 SUM32548947S
SRAM Rival AXS / Podium Grey Gloss / Small SUM.S.353A.3E.1 SUM31119207S
SRAM Rival AXS / Podium Grey Gloss / Medium SUM.M.353A.3E.1 SUM31123960S
SRAM Rival AXS / Podium Grey Gloss / Large SUM.L.353A.3E.1 SUM31958950S
SRAM Rival AXS / Podium Grey Gloss / X-Large SUM.XL.353A.3E.1 SUM32742292S
SRAM Force AXS / Podium Grey / XX-Small SUM.XXS.353A.2E.2 SUM28303341Y
SRAM Force AXS / Podium Grey / X-Small SUM.XS.353A.2E.2 SUM27216454Y
SRAM Force AXS / Podium Grey / Small SUM.S.353A.2E.2 SUM26255951Y
SRAM Force AXS / Podium Grey / Medium SUM.M.353A.2E.2 SUM26393447Y
SRAM Force AXS / Podium Grey / Large SUM.L.353A.2E.2 SUM2632264Y
SRAM Force AXS / Podium Grey / X-Large SUM.XL.353A.2E.2 SUM2720124Y

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