Bianchi Oltre RC Dura-Ace Di2 12sp

Bianchi

OltreRC Dura-Ace Di2 12sp

FrameBianchi Oltre RC carbon a…Bianchi Full Carbon aero fo…
GroupsetShimano Dura-Ace Di2 ST…Shimano Dura-Ace 12-speed…
WheelsReparto Corse Carbon SP…Pirelli P ZERO Race SL TLR,…
Tire clearance32 mm

The current generation of the Bianchi Oltre marks a radical departure from the brand's previous aero platforms, dropping the XR naming convention in favor of a tiered family led by the flagship Oltre RC. Designed as an uncompromising aero road bike, the frame features deep wheel shrouding, dropped seatstays, and a distinctive cutaway at the upper down tube to manage airflow around the front wheel. The defining characteristic of the RC and Pro tiers is the Air Deflector system—vent-like structures bolted to the sides of the head tube that work in tandem with a central air channel in the proprietary cockpit to reduce drag. While Bianchi claims significant aerodynamic savings over the outgoing Oltre XR4, the add-on deflectors are not homologated for UCI-sanctioned racing and must be removed for those events. The frame officially clears 30mm tires, aligning with modern road standards while maintaining a strict focus on aerodynamic efficiency.

Bianchi Oltre
Build
Size
01 / Buy

Where to get it.

No retailers stocking size 550.

Size
0 retailers · Size 550

No retailers carrying size 550 right now.

02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameBianchi Oltre RC carbon aero shape, electronic drivetrain only, headset 1-1/4"-1-1/4", BB PressFit 86.5x41mm, integrated seat clamp, flat mount disc, internal routing, thru axle 12x142mm (sizes 47-50-53-55-57-59cm)
ForkBianchi Full Carbon aero fork, disc, integrated head 1-1/4", flat mount, thru axle 12x100mm
03Wheels & tires
4 components
Front wheelReparto Corse Carbon SPB 50mm profile, 700x21c, tubeless ready
Rear wheelReparto Corse Carbon SPB 65mm profile, 700x21c, XDR freehub body, tubeless ready
04Cockpit & contact
5 components
StemIntegrated carbon aero bar/stem (drop 125mm, reach 80mm), Di2 compatible (90x400: 47/50cm; 100x420: 53cm; 110x420: 55/57cm; 120x440: 59cm)
HandlebarsIntegrated (included with stem)
SaddleBianchi RC139 Carbon Air, 250x139mm, 7x9.3mm rails, 168g
SeatpostOltre full carbon aero seatpost, 20mm offset (280mm: 47cm; 300mm: 50–55cm; 350mm: 57–59cm)
Grips/TapeBianchi Arrow premium bar tape, 2.5mm thickness, black
03 / Geometry

Geometry & fit.

6 sizes published.

The Oltre utilizes a highly aggressive geometry that prioritizes aerodynamic positioning over upright comfort. Looking strictly at the frame numbers, the stack is exceptionally low and the head tube is unusually short—a size 55cm frame features just 520mm of stack and a 118mm head tube.

However, these raw figures are offset by the design of the proprietary Reparto Corse cockpit found on the upper-tier models. The stem integrates deep into the head tube and features a steep positive upward angle, effectively raising the handlebars to a more traditional race height. Even with this upward tilt, the resulting posture remains stretched out and low. Reviewers strongly recommend a professional bike fit, as the integrated bar and stem offer limited adjustability and the forward-leaning stance can induce fatigue if not dialed in correctly. The frame utilizes a press-fit 86.5x41mm bottom bracket and a proprietary aero seatpost with a 20mm offset across all sizes.

Reach × Stack · size 550mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

740669598526455STACK ↑370406443479515REACH →ENDURANCERACE / AEROSize 550397 · 520
01Fit geometry5 values
Stack520 mm
Reach397 mm
Top tube550 mm
Headtube length118 mm
Seat tube length530 mm
02Component geometry7 values
Crank length172.5 mm
Handlebar width420 mm
Stem length110 mm
Saddle width139 mm
Seatpost offset20 mm
Handlebar reach80 mm
Handlebar drop125 mm
03Handling geometry7 values
Headtube angle72.5°
Seat tube angle73.5°
BB drop68 mm
Offset43 mm
Front center588 mm
Wheelbase988 mm
Chainstay length410 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended sizeBased on stack, reach & ETT for your height.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

7 builds, ranging $6,100 – $25,647.

The Oltre lineup is split into distinct tiers that dictate frame materials, cockpit integration, and aerodynamic features. The flagship Oltre RC uses the lightest, stiffest carbon layup and omits the Countervail vibration damping to save weight. RC builds feature premium electronic groupsets, dual-sided power meters, and deep-section carbon wheels, with the Founder Edition including a THM Clavicula power meter and CeramicSpeed OSPW system.

The Oltre Pro shares the exact frame shape and Air Deflectors of the RC but adds the Countervail carbon layup for improved ride compliance, adding roughly 50 grams to the frame. Pro builds are equipped with SRAM Force or Shimano Ultegra electronic drivetrains, 50mm Velomann Plutonium carbon wheels, and standard power meters. Both the RC and Pro models utilize the one-piece Reparto Corse aero cockpit with the central air channel.

The Oltre Comp serves as the entry point to the platform. While it retains the overall frame silhouette, it drops the head tube Air Deflectors and swaps the integrated carbon cockpit for a standard two-piece Velomann alloy stem and bar with internal routing. Comp builds rely on Rival or Ultegra electronic shifting and do not include power meters.

05 / Reviews

From the press.

4 reviews from the cycling press.

Reviewers consistently characterize the Oltre as a rigid, highly efficient machine optimized for flat roads and high-speed descents. The frame features a massive bottom bracket and thick chainstays that deliver immediate power transfer, creating a bike that "begs to be ridden hard and fast" (Bicycling Australia). At speed, the aerodynamic shaping is palpable, with riders noting the sensation of "slicing through the wind" (Competitive Cyclist) and easily holding momentum in fast group rides.

Handling is sharp and responsive, though it requires an assertive rider. The front end is nimble, but the bike's overall demeanor means it "really does need to be muscled around to show its best" (Bicycling Australia). While it corners with precision and remains stable on descents, its weight and aggressive posture make it feel slightly sluggish on steep, sustained climbs compared to a dedicated lightweight climbing bike.

Ride comfort varies significantly depending on the frame tier. The Oltre Pro includes Bianchi's Countervail technology woven into the carbon layup, which effectively "soaks up a lot of the bumps on the road" (YouTube) and reduces fatigue over long distances. However, even with this vibration damping, the underlying ride quality remains firm and unapologetically race-focused.

06 / Compared to

Compared to.

Most-viewed comparisons.