DA1 Di2

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DA1 Di2

Years of research, engineering and wind-tunnel development went into the DA1. Already ridden to major triathon wins by Felt athletes Terenzo Bozzone, and Andi Boecherer, this is the bike that left the competition in the dust. With UHC Ultimate+Nano carbon fiber material—shaped through extensive Computational Fluid Dynamics engineering and real-world testing—it’s 14% more aerodynamic and 13% stiffer than the last-generation DA. It’s also optimized for Shimano Di2 electronic shifting, with internal cable routing and an integrated battery mount.

Additional Info

White Papers (PDF)

Frame:

Felt TT/Tri UHC Ultimate + Nano MMC carbon fiber w/ 1KP weave, InsideOut internal molding process, Di2 & mechanical internal cable routing, carbon fiber dropout w/ aluminum rear derailleur hanger
Fork:

Felt Bayonet3 UHC Ultimate + Nano MMC carbon fiber monocoque w/ 1KP weave, 1 piece carbon blades, dropouts, crown & external steerer w/ Felt 19mm ACB compression device
Drivetrain:

Shimano Dura-Ace Di2 STI & SW-7971 bar end shifters, Shimano Dura-Ace Di2 derailleurs, Shimano Dura-Ace 53/39T crankset w/ Enduro ceramic BB, Dura-Ace chain & 12-25T cassette
Components:

Felt integrated aerodynamic front & rear brakes, Devox Bayonet UHC Ultimate MMC carbon fiber base bar & ƒ bend tri-position extensions, Felt Bayonet3 integrated 2D forged & CNC machined aluminum stem, Felt Aero UHC Ultimate carbon fiber bladed seatpost, Devox TTR saddle w/ carbon fiber base & rails
Wheelset:

*Shipped without wheelsets
Accessories:

Di2 battery & battery charger, aero battery cover
Finish:

1) Gloss black & matte carbon
Sizes:

650c x 47cm, 700c x 51cm, 54cm, 56cm, 58cm
Weight:

16.91lbs | 7.68kg *based on 56cm frame size

The Bayonet is Felt’s patented aerodynamic fork design for time trial, triathlon, and track bikes. By moving the fork’s steerer tube outside the frame we were able to increase front-end stiffness and steering precision, while dramatically decreasing wind drag. It’s the fastest, most aerodynamic fork and steering system in the world.

This product directly benefited from advanced computer design work using Computational Fluid Dynamic (CFD) software from CD-Adapco as well as extensive wind tunnel testing to make them as aerodynamically efficient and technologically advanced as possible.

This indicates Felt’s exclusive premium quality component line Devox. Every component with the Devox name was designed by the same team of engineers responsible for cutting-edge Felt bikes and technology. When you see the Felt Devox name, you know that particular part or component is held to the very highest technological and performance standard.

This indicates the use of flow-through internal cable routing. It reduces wind drag and prevents contaminants from entering and interfering with the function of brake or shifter cables.

This bicycle is also available as a frame or frameset. Note that frame or frameset may not graphically mirror this complete bike.

InsideOut is a revolutionary internally optimized molding process that completely eliminates excess material, and therefore weight, inside the frame tubes and junctions. Placing polyurethane inserts inside the frame during the molding process—especially at the bottom bracket and head tube area—and then applying a precise amount of pressure and heat results in perfectly formed tubes, inside and out.

Modular Monocoque Construction is an advanced carbon fiber manufacturing technique that allows Felt to mold individual sections of the frameset and then join them together. The main advantage of MMC is that it allows each section to be optimized to meet the specific engineering demands of that particular section of the frame.

UHC Ulimate+ Nano is the mark of Felt’s lightest, stiffest, best performing frames. UHC stands for Ultra Hybrid Carbon, and as the name indicates these frames feature a hybrid blend of high modulus raw carbon fiber. The stiffest fibers are used in certain areas of the frame, more durable fibers in others. Nano refers to a proprietary resin matrix that increases frame strength at the molecular level.

Felt’s DuPont paint is the highest quality paint offered on Felt products. Reserved for our top-of-the-line bicycles, DuPont paint offers unparalleled clarity and durability in a multitude of colors.

	47	51	54	56	58
Head Tube Angle	71	72.5	73	73	73
SA Rear Position	76.5	76	76	76	76
TT Rear Position	490	520	540	560	580
SAFrontPosition	78.8	78.1	78	78	78
TTFrontPosition	471	500	521	541	561
Top Tube Center to Center	490	520	540	560	580
Head Tube Length	78	80	88	108	128
Seat Tube Center to Top	470	510	540	560	580
Seat Tube Center to Center	455	495	525	545	565
Bottom Bracket Drop	45	70	70	70	70
Chainstay Length	375	395	395	395	395
Front Center	565	577	593	614	635
Wheelbase	935	962	978	999	1020
Rake	40	40	40	40	40
Standover Height	724	770	794	813	833
Seat Post Diameter	Aero	Aero	Aero	Aero	Aero
Seat Post Offset	25	25	25	25	25
Optional Seat Post Offset	20	20	20	20	20
Lower HS Stack
Reach	379	391	409	424	439
Stack	457	515	524	543	563

Finish:

1) Gloss black & matte carbon
Sizes:

650c x 47cm, 700c x 51cm, 54cm, 56cm, 58cm
Weight:

16.91lbs | 7.68kg *based on 56cm frame size
Frame:

Felt TT/Tri UHC Ultimate + Nano MMC carbon fiber w/ 1KP weave, InsideOut internal molding process, Di2 & mechanical internal cable routing, carbon fiber dropout w/ aluminum rear derailleur hanger
Shock:

n/a
Fork:

Felt Bayonet3 UHC Ultimate + Nano MMC carbon fiber monocoque w/ 1KP weave, 1 piece carbon blades, dropouts, crown & external steerer w/ Felt 19mm ACB compression device
Headset:

Felt Bayonet3 stainless steel 19mm integrated ACB
Stem:

Felt Bayonet3 integrated 2D forged & CNC machined aluminum
Handlebar:

Devox Bayonet UHC Ultimate MMC carbon fiber base bar w/ Di2 optimized internal cable routing, integrated adjustable length UHC Ultimate + Nano carbon fiber ƒ bend tri-position extensions, 39cm width
Grips:

Felt Gel Velvet tape
Bar Ends:

n/a
Shifters:

Shimano Dura-Ace Di2 ST7971 STI & SW-7971 bar end
Front Derailleur:

Shimano Dura-Ace Di2 braze-on
Rear Derailleur:

Shimano Dura-Ace Di2
Crankset:

Shimano Dura-Ace, 53/39T; 51cm=170mm, 54cm=172.5mm, 56cm-58cm=175mm
Chainwheel

53T/39T
Chainguide:

n/a
Bottom Bracket:

Felt BB30 Red Zero CNC machined adaptor w/ Grade 3 ceramic by Enduro
Pedals:

n/a
Chain:

Shimano Dura-Ace 10 speed
Freewheel:

Shimano Dura-Ace 12-25T
Brake Levers:

Shimano Dura-Ace Di2 ST7971 STI
Brakes:

Felt integrated aerodynamic front U-brake & rear linerar pull w/ cartridge brake pads
Cables:

Shimano Dura-Ace SLR brake & EW-7975 A2 Di2 derailleur wires & battery
Saddle:

Devox TTR w/ 100% 3k carbon fiber weave base, custom multidensity gel & closed cell superlight foam padding, waterproof microfiber cover & 3k UHC carbon fiber rails, 179 gm
Seat Post:

Felt Aero UHC Ultimate carbon fiber bladed monocoque x 350mm
Seat Post Clamp:

Aero 3D forged aluminum, 1 x 6mm x 1mm titanium bolt, 37g
Rims:

n/a
Front Hub:

n/a
Rear Hub:

n/a
Spokes:

n/a
Tires:

n/a
Fenders:

n/a
Kickstand:

n/a
Accessories:

Di2 battery & battery charger, aero battery cover