Transonic 2.5

$2,099



About Transonic

The Transonic is the culmination of years of aero engineering in the A2 Wind Tunnel. It is the epitome of all knowledge gained and lessons learned channeled into an aero road bike that is a no-compromise machine built for the pursuit of speed with control and achieved through optimum stiffness and stable steering geometry. The Transonic slips through the wind while putting every watt of power you generate to the ground to get you to the line first.

Key Features

  • Designed using Computational Fluid Dynamics in conjunction with wind-tunnel testing to create a class-leading aerodynamic frame.
  • Direct-mount front and rear brakes remove the excess material of a carrier plate, allowing for better frame integration, improved aerodynamics and increased brake stiffness and control.
  • Headtube angle and fork offset were carefully chosen to be within the optimal range of trail adjusted throughout the size range to ensure stable steering and confidence-inspiring handling.
  • Asymmetrical, oversized Energy Transfer Chainstays (ETC) offset drivetrain-induced torque by maintaining lateral stiffness and displacing power more evenly through the frame.
  • Internal cable routing for mechanical and Di2 systems including an internal Di2 battery integrated into the seat post.
  • Integrated chain watcher ensures smooth shifts without the risk of dropping the chain to the inside of the crank.

Technical Specifications


Sizes

XXS (46cm), XS (49cm), S (52cm), M (54cm), L (56cm), XL (58cm), XXL (61cm)

Color(s)

CARBON / CITRUS

Frame

C5 high-modulus carbon, integrated head tube w/ 1 1/2" lower, PF30 BB, double water bottle mounts

Fork

FC-440 carbon w/ tapered carbon steerer

Crankset

Oval Concepts 500, forged 6066 arms, M30 spindle, forged Praxis 52/36T rings

Bottom Bracket

Praxis conversion bottom bracket

Pedals

N/A

Front Derailleur

Shimano Ultegra, braze-on mount

Rear Derailleur

Shimano Ultegra, 11-speed

Shifters

Shimano Ultegra, STI, 11-speed

Cassette

Shimano 105, 11-28T, 11-speed

Chain

KMC X11, 11-speed w/ MissingLink

Wheelset

Oval Concepts 327, 700c 20/24H rims

Tires

Vittoria Zaffiro Pro Slick, 700 x 25c, 60tpi, folding

Brakeset

Shimano 105 direct-mount

Brake Levers

Shimano Ultegra, STI

Headset

FSA, 1 1/8" upper - 1 1/2" lower, integrated

Handlebar

Oval Concepts 310 Ergo, 6061 alloy, 31.8mm clamp, 133mm drop, 4° sweep

Stem

Oval Concepts 313, 3D-forged 6061 stem body, +/-7°

Tape

Oval Concepts 300 bar tape, suede

Saddle

Oval Concepts 500 with pressure relief zone, cromo rail

Seatpost

Transonic aero carbon, 300mm (46-52cm), 350mm (54-61cm)

Weight

17.96 lbs. / 8.15 kg.

Geometry

Size XXS (46cm) XS (49cm) S (52cm) M (54cm) L (56cm) XL (58cm) XXL (61cm)
A Seat Tube Center To Top 440 470 500 520 540 560 590
B Seat Tube Effective 460 490 520 540 560 580 610
C Top Tube Effective 505 515 530 545 560 580 600
D Head Tube Length 100 100 120 135 155 175 195
E Seat Tube Angle 75.5° 75.25° 75° 73.5° 73° 73° 73°
G Headtube Angle 70.75 71.5 71.5 73 73 73 73
H Chainstay Length 405 405 405 405 405 405 405
I Wheelbase 980 982 996 974 986 1003 1023
J Bottom Bracket Drop 68 68 68 68 68 68 68
K Fork Offset 52 52 52 43 43 43 43
L Trail 62.6 57.6 57.6 57.8 57.8 57.8 57.8
M Stack 495 497 516 538 557 577 596
N Reach 377 384 392 386 389 404 418
O Standover 719 737 762 782 801 820 844
Stem 80 90 90 100 100 120 120
Handlebar Width 380 400 400 420 420 440 440
Crank 165 170 170 172.5 172.5 175 175
Wheel Size 700 700 700 700 700 700 700
Seat Post Diameter N/A N/A N/A N/A N/A N/A N/A