Firebird DB

Firebird DB Pro Ultegra Di2 R8100 is with the new Ultegra R8100 – Leave Time Behind

When developing the Ultegra R8100 series, Shimano took a holistic and 100 % performance-oriented approach, because great speed means great responsibility. Faster than ever before, the 12-speed road groupset scores with unparalleled control and comfort anytime and anywhere – whether in an everyman race, on the hunt for a personal best time or on a companionable ride.

As with the Dura Ace R9200, not only does Hyperglide+ make its way into the Ultegra’s components, also its Di2 parts rely on Wireless technology to simplify operation and ensure smooth shifting.

RRP:

  • Specifications
    Frame Monolith 2-Way Molded Carbon, Hub Size: 9×130/100 QR, Fully Integrated Cables
    Color Black/Blue
    Size 28″: XS, S, M, L, XL
    Fork FireBird, Ultra Lite, UD Carbon
    Headset FSA NO. 55R IS42/28.6 lIS52/40
    Crankset Shimano Ultegra R8100, 52-36T
    Bottom Bracket Shimano BB-72-41 Press Fit
    Shifters Shimano Ultegra Di2 R8150, 2×12
    Front derailleur Shimano Ultegra Di2 R8150, braze-on
    Rear derailleur Shimano Ultegra Di2 R8150, 12-speed
    Cassette Shimano Ultegra R8100 11/30T, 12-speed
    Chain Shimano XT M8100, 12-speed
    Handlebar COX Speed, 135 mm drop, 105 mm reach, 31.8 clamp
    Stem COX Speed SE, 31.8 mm clamp
    Bar Tape COX Rhombo Gel 2.5 mm, black
    Brakes Shimano Ultegra R8170, hydraulic disc, flat mount
    Rotors Shimano RT800 160/140 mm, center lock
    Saddle Fizik Antares R7
    Seat Post COX Speed 3E, 27.2 mm, 16 mm offset
    Seat post clamp COX Speed, Forged Alloy, Single Bolt, 31.8 mm
    Wheels COX Avanti 30, UD carbon, clincher, tubeless ready
    Tires Schwalbe One Performance RaceGuard, 25-622
  • Geometry / Sizes
    Size XS-480S-510M-540L-570XL-600
    Seat Tube Length (ST) 480 mm 510 mm 540 mm 570 mm 600 mm
    Top Tube Length (TT), X 520 mm 540 mm 550 mm 570 mm 590 mm
    Top Tube Length (TT), Actual
    Bottom Bracket Drop (BD) -69 mm -69 mm -69 mm -69 mm -69 mm
    Bottom Bracket Height
    Chainstay Length (CS) 405 mm 405 mm 405 mm 405 mm 405 mm
    Seat Tube Angle (STA) 74.5° 73.5° 74° 73° 72.5°
    Head Tube Angle (HTA) 71.5° 72.5° 73° 73° 73.5°
    Wheel Base (WB) 980.1 mm 981.6 mm 991.8 mm 1001.8 mm 1011.4 mm
    Standover Height
    Head Tube Length (HT) 120 mm 135 mm 150 mm 170 mm 190 mm
    Stack (S) 517.5 mm 537.4 mm 551.2 mm 570.8 mm 591.3 mm
    Reach (R) 376.5 mm 380.8 mm 391.5 mm 395.4mm 403.6 mm
    Handlebar Width
    Stem Length
    Crank Length
  • Technology