Oltre Pro Shimano Ultegra Di2 12sp

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.

Price TBDYUB28
Bianchi Oltre Pro Shimano Ultegra Di2 12sp
Build
Size
Stack504mm
Reach393mm
Top tube536mm
Headtube length103mm
Seat tube length510mm

Fit and geometry

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.

Full specs

Frameset

Frame

Bianchi Oltre PRO carbon w/ Bianchi CV System, aero shape, electronic drivetrain only, headset 1-1/4"-1-1/4", BB PressFit 86.5x41mm, integrated seat clamp, flat-mount disc, internal cable routing, 12x142mm thru-axle (sizes 47/50/53/55/57/59cm)

Fork

Full carbon aero fork w/ Bianchi CV System, disc brakes, integrated 1-1/4" steerer, flat-mount, 12x100mm thru-axle

Groupset

Shift levers

Shimano Ultegra Di2 hydraulic road, ST-R8170 (paired with BR-R8170 calipers), for 160mm rotor

Front derailleur

Shimano Ultegra Di2 12-speed, FD-R8150

Rear derailleur

Shimano Ultegra Di2 12-speed, RD-R8150

Cassette

Shimano Ultegra CS-R8100 12-speed, 11-12-13-14-15-16-17-19-21-24-27-30T

Chain

Shimano Ultegra 12-speed, CN-M8100

Crankset

Shimano Ultegra FC-R8100 12-speed w/ 4iiii Precision 3+ power meter, 52/36T (Crank length: 170mm for 47/53cm; 172.5mm for 55/59cm)

Bottom bracket

Shimano SM-BB72-41B, press fit road (with bearings/inner cover)

Front brake

Shimano Ultegra BR-R8170 hydraulic disc brake (as part of ST-R8170/BR-R8170 system)

Rear brake

Shimano Ultegra BR-R8170 hydraulic disc brake (as part of ST-R8170/BR-R8170 system)

Front rotor

Shimano CL900 Center Lock w/ Ice Tech, 160mm

Rear rotor

Shimano CL900 Center Lock w/ Ice Tech, 160mm

Wheelset

Front wheel

Velomann Plutonium, 50mm profile, 700x21c, 24h, HG body

Rear wheel

Velomann Plutonium, 50mm profile, 700x21c, 24h, HG body

Front tire

Pirelli P ZERO Race SL TLR, 28-622, 120 tpi

Rear tire

Pirelli P ZERO Race SL TLR, 28-622, 120 tpi

Cockpit

Stem

One-piece integrated aero handlebar/stem (carbon), drop 125mm, reach 80mm, Di2 compatible (Ext: 90x400 for 47/50cm; 100x420 for 53cm; 110x420 for 55/57cm; 120x440 for 59cm)

Handlebars

Included in the stem (one-piece integrated bar/stem)

Saddle

Velomann Mitora139 Lite Open Flow, carbon rails 7x9.3mm, carbon-reinforced nylon, 139mm wide, 250mm long

Seatpost

Oltre full carbon aero seatpost, 20mm offset (length: 280mm for 47cm; 300mm for 50–55cm; 350mm for 57–59cm)

Grips

Bianchi Arrow premium bar tape, 2.5mm thickness, black

Builds

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.

Reviews

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.

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