Bianchi Oltre RC Dura-Ace Di2 (2025)

Bianchi’s flagship aero race bike. The Oltre RC Dura-Ace Di2 takes Bianchi’s wind-cheating Oltre chassis and adds Shimano’s top-tier Dura-Ace Di2 12-speed with a 4iiii dual-sided power meter for pro-level pacing. Deep Reparto Corse SPB 50/65 carbon wheels are fast and tubeless-ready, while Pirelli P ZERO Race SL TLR 28 mm tyres keep it planted at speed. A fully-integrated carbon aero cockpit and Oltre aero seatpost complete a race-ready build that’s as clean as it is quick.

Why you’ll love it

• Electronic-only Oltre RC aero frame with internal routing & integrated clamp
• Dura-Ace Di2 12-speed: precise, instantaneous shifting under load
• 4iiii Precision 3+ dual-sided power meter (52/36) for accurate training & race pacing
• Reparto Corse SPB 50/65 carbon wheels (tubeless-ready) for all-out speed
• Pirelli P ZERO Race SL TLR 28 mm tyres: low rolling resistance with grip
• Carbon one-piece aero bar/stem sized by frame for fit and control
• Hydraulic discs (160/160) with Ice Tech CL900 rotors for consistent braking

Complete build spec (as supplied)

Frameset

• Frame: Oltre RC carbon aero (electronic only), 1¼"–1¼" headset, PF86.5×41 BB, flat-mount discs, 12×142 mm TA; sizes 47–59
• Fork: Full-carbon aero, 12×100 mm TA, flat-mount, integrated 1¼" head
• Headset: FSA No.54 – MR137 ACB (1¼")

Drivetrain

• Shifters/Calipers: Shimano Dura-Ace Di2 ST-R9270 / BR-R9270 (for 160 mm rotors)
• Front Derailleur: Shimano Dura-Ace Di2 FD-R9250
• Rear Derailleur: Shimano Dura-Ace Di2 RD-R9250 (12-speed)
• Crankset: Shimano Dura-Ace FC-R9200 52/36 with 4iiii Precision 3+ dual-sided PM
  • Crank lengths: 170 mm (47–54), 172.5 mm (55–59)
• Bottom Bracket: Shimano SM-BB92-41B (press-fit)
• Cassette: Shimano Dura-Ace CS-R9200 11–30 (12-sp)
• Chain: Shimano CN-M9100 (12-sp)

Brakes

• Rotors: Shimano CL900 Center-Lock, 160 mm front & rear

Wheels & Tyres

• Wheels: Reparto Corse Carbon SPB — 50 mm (front) / 65 mm (rear), 700×21c, tubeless-ready, ~1520 g/pair, rear driver XDR
• Tyres: Pirelli P ZERO™ Race SL TLR 28-622, 120 tpi

Cockpit

• Integrated carbon aero bar/stem (Di2 compatible)
  • 90×400 (47/50) · 100×420 (53) · 110×420 (55/57) · 120×440 (59)
• Tape: Bianchi Arrow premium 2.5 mm

Seatpost & Saddle

• Seatpost: Oltre full-carbon aero, 20 mm offset
  • 280 mm (47) · 300 mm (50–55) · 350 mm (57–59)
• Saddle: Bianchi RC139 Carbon Air, 250×139 mm, carbon rails (7×9.3), ~168 g

Available at Elite Racing Cycles, North Perth.