Description:
Bianchi Specialissima / 2027 / Ultegra Di2
The Specialissima, beyond the climbs.
The Specialissima made its name in the mountains. Bianchi's new generation keeps that quick, direct character and adds the aerodynamic thinking needed for fast roads, rolling courses and hard days in the saddle.
This Ultegra Di2 build brings together the new carbon frameset, an integrated Reparto Corse cockpit, 49 mm Bianchi carbon wheels and 30 mm Continental tires. It is a thoughtfully equipped road bike, ready for more than one kind of riding.
Shimano Ultegra Di2
Bianchi B 49R, tubeless-ready
Continental Grand Prix TR
Vibration-damping carbon construction
The new Specialissima
Climbing is the starting point.
The frame, fork and integrated cockpit have been shaped with aerodynamics in mind, while Countervail helps filter road vibration. The result is still unmistakably a Specialissima: responsive when the gradient rises, settled on descents and more efficient when the road opens up.
The build
Well considered, from the first shift to the last descent.
Shimano Ultegra Di2
Shimano's 12-speed electronic group shifts cleanly, whether you are seated on a long climb or accelerating over a crest. The 50/34T crankset and 11–34T cassette offer useful climbing gears without feeling short of range on faster roads. Ultegra hydraulic disc brakes complete the package.
Bianchi B 49R carbon wheels
With a 49 mm rim profile and 25 mm internal width, the B 49R wheels balance aerodynamic depth with a modern tire interface. Their tubeless-ready design pairs naturally with the fitted Continental Grand Prix TR 30 mm tires.
An integrated front end
The one-piece Reparto Corse carbon handlebar keeps the cables tucked away and gives the bike a clean silhouette. Stem length and bar width change with frame size, so it is worth discussing fit before ordering.
Three finishes, one Specialissima
Choose the one you want to keep looking back at.
Available in JE – Celeste (Metallic Celeste / Dark Celeste, glossy), JF – Black in Black (black / iridescent chrome, satin and gloss), and JS – Mocha (Italian White / bronze, glossy). Choose your color and frame size using the options above.
Factory build
2027 Specialissima Ultegra Di2 — specifications
Bianchi model YWB6S. Frame construction is shared with the Specialissima Pro platform; this is the standard Specialissima complete-bike build.
Frameset & cockpit
| Frame | 2027 Specialissima PRO carbon construction with Countervail; electronic groupsets only; fully internal cable routing; UDH compatible; flat-mount disc; PressFit 86.5 × 41 mm. |
|---|---|
| Fork | Specialissima carbon with Countervail, 1.5-inch integrated front end, 12 × 100 mm thru-axle, flat-mount disc. |
| Headset | Acros IS52 with internal cable routing. |
| Cockpit | Bianchi Reparto Corse one-piece carbon handlebar/stem; 80 mm reach and 125 mm drop. |
| Cockpit by size | 47–50: 90/380 mm; 53: 100/380 mm; 55–57: 110/400 mm; 59: 120/420 mm. |
| Seatpost | Bianchi Specialissima Full Carbon Aero; 0 mm offset on sizes 47–53, 20 mm on sizes 55–59. |
Drivetrain & braking
| Shift / brake levers | Shimano Ultegra Di2 ST-R8170. |
|---|---|
| Rear derailleur | Shimano Ultegra Di2 RD-R8150, 12-speed. |
| Front derailleur | Shimano Ultegra Di2 FD-R8150. |
| Crankset | Shimano Ultegra FC-R8100, 50/34T. |
| Cassette | Shimano 105 CS-R7100, 11–34T, 12-speed. |
| Chain | Shimano CN-M7100. |
| Bottom bracket | Shimano SM-BB72-41B, PressFit 86.5 × 41 mm. |
| Brakes / rotors | Shimano Ultegra BR-R8170 hydraulic disc brakes; Shimano RT-CL700 Center Lock rotors, 160 mm front and rear. |
Wheels & finishing kit
| Wheelset | Bianchi B 49R carbon; 49 mm rim depth, 25 mm internal width, J-bend spokes, ratchet hub system, tubeless-ready. |
|---|---|
| Tires | Continental Grand Prix TR, 700 × 30c (30-622). |
| Saddle | Prologo Nago R4 PAS, steel rails, 245 × 137 mm. |
| Pedals | Not included. |
| Power meter | Not included in the standard Ultegra Di2 build. |
Specifications reflect Bianchi's published build and may change without prior notice because of component availability.
Fit & sizing
Frame geometry
The Specialissima has a purposeful race fit. Stack, reach and cockpit dimensions matter more than the size number alone. If you are between sizes, we can help you work through the differences.
| Frame size | 47 | 50 | 53 | 55 | 57 | 59 |
|---|---|---|---|---|---|---|
| Seat tube (mm) | 420 | 450 | 480 | 500 | 520 | 540 |
| Effective top tube (mm) | 514 | 524 | 535 | 550 | 560 | 575 |
| Head tube (mm) | 100 | 105 | 120 | 135 | 150 | 170 |
| Chainstay (mm) | 410 | 410 | 410 | 410 | 412 | 412 |
| Bottom bracket drop (mm) | 58 | 58 | 68 | 68 | 68 | 68 |
| Seat tube angle | 74.5° | 74.5° | 74° | 73.5° | 73.5° | 73° |
| Head tube angle | 70.5° | 71.5° | 72° | 72.5° | 73° | 73° |
| Stack (mm) | 486 | 494 | 520 | 536 | 552 | 571 |
| Reach (mm) | 379 | 386 | 387 | 391 | 397 | 400 |
| Wheelbase (mm) | 982 | 983 | 984 | 988 | 996 | 1005 |
| Stem length (mm) | 90 | 90 | 100 | 110 | 110 | 120 |
| Handlebar width (mm) | 380 | 380 | 380 | 400 | 400 | 420 |
| Crank length (mm) | 165 | 165 | 170 | 170 | 172.5 | 172.5 |
Geometry values are in millimeters unless marked with a degree symbol. On smaller screens, swipe the table sideways to see every size.
Good to know
A few answers before you ride.
Does this build include a power meter or pedals?
No. Neither is included with the standard Specialissima Ultegra Di2 build. We can help choose a compatible setup if you would like one.
Are the wheels tubeless-ready?
Yes. The Bianchi B 49R wheels are tubeless-ready. If you want a tubeless setup from the start, ask us about the options before your bike is prepared.
How is this different from the Specialissima Pro?
The standard Specialissima shares the Pro-carbon frame construction but uses Bianchi B 49R wheels rather than RC 49R wheels, and this Ultegra Di2 build does not include the Pro’s factory-fitted power meter.
Brimstone Bicycles · Canal Fulton, Ohio
Let's get the fit right.
We're a Bianchi dealer and a full-service bike shop. If you want to compare sizes, check on availability or talk through the cockpit dimensions, we'd be glad to help before you order.
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Return Policy
Our regular policy applies, please check our return policy for more details.