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Scott launches new foil RC, promising aerodynamics, lighter weight and increased rigidity

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Scott launched the newly updated Foil RC aero road bike ahead of the Tour de France. As you ride the World Tour costume team DSM at the Grand Boukle, the new racing machine promises an impressive improvement across the Holy Trinity of aerodynamics, weight and stiffness.

The brand has worked with aviation expert Simon Smart to develop a new frameset that saves 16 watts at 40km / h, or over 40km at that speed in 1 minute 18 seconds.

At the same time, Scott achieved a frame weight of 915g with the lightest HMX SL carbon layup. This is 9% lighter than the previous generation foil.

The geometry has also been adjusted to increase responsiveness and agility, largely reflecting the Swiss brand Addict RC lightweight race bike.

Foil RC will be available on four models by the end of the year and pricing will be confirmed later this year.

Aero first with Drag2Zero

We participated in the launch of Foil RC held at Lake Iseo in Italy.Ashley Quinnlan / Our Media

If Drag2Zero sounds familiar, it’s because the company has a long history of working with Scott on the previous generation of Foil, as well as having a long-standing relationship with ENVE in many other cycling-related teamups. is. Its founder, aerodynamics expert Simon Smart, has had a major impact on air development in recent years.

According to Scott, a three-year co-development process has created the fastest bike the Swiss brand has ever manufactured, achieving 10% higher efficiency in the wind tunnel than previous generation foils.

This was achieved with extensive computational fluid dynamics (CFD) testing across all tube profiles of the new Foil RC. Here, each NACA-inspired tube is individually tested as a complete frameset mockup.

The NACA profile (with a somewhat squared rear side edge) isn’t new to modern exercise bike designs, but Scott says it worked with Drag2Zero to optimize airflow throughout the package. increase.

One of the mistakes bike brands often make is to focus solely on the frameset or the complete bike, says Drag2 ZerosSmart. That could lead to an incredibly fast frameset on paper, but with the rider on board, you’ll find that the aero position is low and the overall system is slowing down.

The head tube is deep and has a visible struff behind the fork crown.Ashley Quinnlan / Our Media

The brake hose is properly connected to the head tube.Ashley Quinnlan / Our Media

The Syncros out-front mount is bolted to the underside of the One Piece handlebar.Ashley Quinnlan / Our Media

Syncros Duncan SLAero CFT Seatpost.Ashley Quinnlan / Our Media

The filler has been removed and can be replaced with a Syncros light fitting.Ashley Quinnlan / Our Media

The Scott Foil RC is equipped with a Syncros Belcarra saddle.Ashley Quinnlan / Our Media

The multi-piece seatpost is unique to Foil RC and fits neatly into a deep seat tube.Ashley Quinnlan / Our Media

The seat stay flares outward from the seat tube.Ashley Quinnlan / Our Media

The seat stays curl at a 10 degree angle, forming a flow of air away from the turbulent wheel zone.Ashley Quinnlan / Our Media

The tube profile gets various degrees of truncated, NACA-inspired profiling.Ashley Quinnlan / Our Media

The UCI-allowed correction zone above the bottom bracket is filled, structural and performing aero optimization.Ashley Quinnlan / Our Media

The legs of the fork are flared and the through axle is bisected near the rear end.Ashley Quinnlan / Our Media

Clearance officially allows tires up to 30mm.Ashley Quinnlan / Our Media

When the cover is removed, the seatpost is held in place by the wedge system. It fits on the sleeves and fits snugly inside the frame.Ashley Quinnlan / Our Media

When you remove the top cap cover, you will see a round steerer tube that is easy to maintain.Ashley Quinnlan / Our Media

The gap with the raised fork crown is said to be ideal for aero performance.Ashley Quinnlan / Our Media

Foil RC has 25mm tires on the front. AshleyQuinlan / Our Media

28mm rubber on the back.Ashley Quinnlan / Our Media

Brake calipers are often hidden behind the fork legs Ashley Quinlan / Our Media

Hiding in the directed airflow.Ashley Quinnlan / Our Media

Structurally important and aero-optimized bottom bracket zone. As shown here, the test model was RC Pro.Ashley Quinnlan / Our Media

For Foil RC, Smart monitored multiple iterations of the CFD simulation and found the fastest paper solution with wheels and riders before actually testing it in the Mercedes F1 team’s wind tunnel.

Smart acknowledges that optimizing the bike’s air flow is a real challenge, as the air is constantly changing. As a result, Foil RC has been developed to operate most efficiently at speeds of 32 and 48 km / h in the yaw angle sweet spot zone of 4-10 degrees.

According to Scott, these wind directions and speeds are closest to the wide variety of riding that foil RC riders may encounter.

Visually, Foil RC has some neat details, some of which are in response to UCI regulatory changes that allow correction zones within the frame design. Most of the carbon appears above the bottom bracket, but there is a small fill in the head tube / top tube joint.

According to Scott, the molded struff appears behind the slimmed fork crown and at the joint between the seat stay and the seat tube, and the dropped seat stay is turned 10 degrees inward to direct air outward. , Reduces interaction and turbulence around the inner edge of the wheel.

The fork legs are asymmetrical and have a flat shape on the drive side, while they have a more curved profile on the non-drive side, but the brake calipers are pushed tightly away from the wind.

The Syncros Creston iC SL Aero One Piece handlebar is reserved for the Ultimate and Pro versions of Foil RC.Ashley Quinnlan / Our Media

The One Piece Syncros Crestoni C SL cockpit was developed specifically for Foil RC. This results in a 6 watt savings compared to the previous Foil, which features fully integrated brake hose routing through the head tube, Scott says. There is also a two-piece version of Creston for models further down the range.

An interesting omission is the lack of an embedded bottle cage mount, similar to the one used on the Pinarello Dogma F and BMC Timemachine Road. According to Smart, testing with the bottle installed did not significantly improve performance.

Overall, Scott and Smart claim that the new foil RC saves 16 watts of drag at 40 km / h. This is equivalent to a 1 minute 18 second savings over 40km.

Frame weight 915g, 9% lighter than before

The new Foil RC silhouette balances aero depth with a shallow lightweight profile.Marcus Gerber

Scott says he makes a bold (but repetitive) claim that the new foil RC is not only for aero performance, but also for weight and stiffness.

Use 558 HMX-SL carbon fibers (the finest carbon used by Scott) to create a top-level foil RC frame. It is divided into four chunks, a mainframe triangle and two seatstays / chainstays. Assembly and seatpost sleeve.

Scott states that using finite element analysis, the stress zones of foil RC were tested using simulation to reveal the weight-to-rigidity ratio when the material was applied to or removed from the frame. increase. For example, adding 10g of carbon could provide the benefit of 8 stiffness points equal to a ratio of 1.25.

The lower the ratio, the better. Scott does not reveal the exact ratio targeted by the new Foil RC, but after more than 300 iterations of testing, the unpainted frame weighs only 805g in 56cm size, more than a second generation foil. You can save 110g.

The bottom bracket is stiff for 60N / mm tuning, but the headtube rate is 92N / mm, which Scott says is consistent with the 2022 Bike of the Year finalist Addict RC bike for comparison. increase.

With the frame painted, the Di2 battery holder attached, and the derailleur hanger attached, the Foil RC HMX-SL frame weighs 915g (size 56cm).

Improved comfort and sharp handling

The Foil RC frame has the same geometry as the Addict RC.Marcus Gerber

The new Foil RC has the same geometry as the Addict RC, except for the Syncros Creston handlebar, so it has a 10mm shorter reach.

Scott states that this provided the sharp handling characteristics of a lightweight bike, with component arm syncros designing a flex on the new Duncan SL Aero CFT seatpost for a smoother ride.

The seatpost is designed in three parts: a critical cutout section, a stabilized rear section, and a full-length post with rubberized filler that can be replaced with additional lights (with the system Merida adopted for the Reacto exercise bike). Similarly)).

With this design, the full-length stanchion that supports the weight bends against the top corner of the stabilizing section, providing movement in a narrow angle arc. Scott claims to improve the ergonomics of the saddle’s contact points over traditional wide arcs.

The tessellation seatpost section is coated with a special silicone-based grease that is said to reduce the possibility of squeaking. It needs to be cleaned and renewed every 1,000 km.

Scott also deliberately designated foil RC with 25mm front and 28mm rear tires to balance forward airflow and rear comfort. However, if you want maximum comfort, you can have a width of up to 30mm.

Overall, Scott believes the new frame is 10% more comfortable than the previous model, without considering tire choices.

Availability and pricing of Scott Foil RC

The Scott Foil RC will be available by the end of 2022, with four models available at launch. Due to the current global climate and related implications for supply and cost, Scott did not confirm pricing at the time of writing.

I am receiving a bicycle for immediate testing. Later, details may be available.

In the meantime, check out the first ride review here.

Scott Foil RC Specifications Scott Foil RC Ultimate

Scott Foil RC Ultimate.Marcus Gerber

Frame: HMX SL Carbon Fork: HMX SL Carbon Groupset: SRAM RED eTap AXS Power Meter: SRAM RED Power Meter Crankset Wheels: ZIPP 454 NSW Tires: Schwalbe Pro One, Tubeless, Front 25mm / Rear 28mm Seatpost: Syncros Duncan SL Aero CFT Handlebar / stem: Syncros Creston iC SL Aero Saddle: Syncros Belcarra V-Concept 1.0 Scott Foil RC Pro

Scott Foil RC Pro.Marcus Gerber

Frame: HMX Carbon Fork: HMX Carbon Groupset: Shimano Dura-Ace R9170 Di2 Power Meter: Without Wheels: Shimano C50 Tires: Vittoria Corsa Control, Tubeless, Front 25mm / Rear 28mm Seatpost: Syncros Duncan SL Aero CFT Handlebar / Stem : Syncros Creston iC SL Aero Saddle: Syncros Belcarra V-Concept 1.0 Scott Foil RC 10

Scott Foil RC10. Marcus Gerber

Frame: HMX Carbon Fork: HMX Carbon Group Set: Shimano Ultegra R8170 Di2 Power Meter: Without Wheels: Syncros Capital 1.0 50 Disc Tires: Schwalbe One, Tubeless, Front 25mm / Rear 28mm Seatpost: Syncros Duncan SL Aero CFT Handlebar / Stem : Syncros Creston 1.0 Aero Saddle: Syncros Belcarra V-Concept 2.0 Scott Foil RC20

Scott Foil RC20. Marcus Gerber

Frame: HMX Carbon Fork: HMX Carbon Groupset: SRAM Rival eTap AXS Power Meter: Without Wheels: Syncros Capital 1.0 50 Disc Tires: Schwalbe One, Tubeless, Front 25mm / Rear 28mm Seatpost: Syncros Duncan SL Aero CFT Handlebar / Stem : Syncros Creston 2.0 Aero Saddle: Syncros Belcarra V-Concept 2.0

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