The ALFA DISC built with Ultegra Di2 8070 gives you the flawless precision and streamlined ergonomics of Shimano’s Di2 electronic shifting. But by forgoing some of the extremes you get with Dura Ace -- that is, the ultra-light hardware, the super-low-friction moving parts and the luxe finishwork -- your cost savings with Ultegra is dramatic. We dial up the value further by offering the Reynolds AR41 carbon wheelset, rather than the extraordinary Reynolds Blacklabel Aero 46.
Our stock-in-trade here at ALLIED is gravel and we’re living in a cycling industry moment where versatility is the bike trait that matters most. That said, there is something gloriously pure about the single-minded road machine. The ALFA DISC is exactly that: Our knock-down, drag-out race bike whose goal is to take each and every one of your watts and transform it into sheer speed. The carbon layup and frame geometry are tuned with care to give you just the right amount of road feel for blasting through twisty roads. The final addition to its performance is actually subtraction -- the way we take the edge off the high-frequency chatter from choppy pavement.
The ALFA DISC pairs the very best in technology and performance to timeless design. We leverage the very best in raw materials and engineering know-how to deliver a best-in-class race bike, doing so in an elegant and pragmatic way.
Elegance? The near-level top tube of the ALFA DISC hearkens to decades of classic road bike aesthetics. We obsess on the little things like cable management and the seatpost binder. Pragmatism? We dismiss 15 years of senseless blather about new-and-improved bottom brackets and build the ALFA DISC with a 68mm threaded design. We offer the bike in 12 sizes -- including “+” sized headtubes. We use Innegra fibers at high-stress areas for added durability where you need it most.
We offer the ALFA DISC in two stock colors -- Meerblau Blue paint with Meissen Blue decals, or Blood Orange paint with Silver decals. Or you can choose the "Customize" option above and select from an assortment of non-stock PPG paint and decal options -- including Gloss, Matte and Harlequin -- for a $500 upcharge. And if you have a color in mind you don't find there, contact our customer support team so we can discuss the possibilities.
Key Features
- MAXIMUM CLEARANCE
- 700x30 front and rear
- WEIGHT
- 875g for 56cm
- SIZING
- 6 standard sizes from 49cm-61cm, and 6 "Plus" sizes (2cm taller headtube)
- DRIVETRAIN
- 2x crankset for maximum gearing options. Threaded BB. Braze-on front derailleur. Compatible with all shifting systems - electronic and mechanical.
- OTHER SPECS
- 27.2mm seatpost. Flat-mount disc brakes. Integrated headset - 1-1/8" to 1-1/4"
Build Kit
- BOTTOM BRACKET
- Shimano Ultegra
- BRAKES
- Shimano Ultegra
- CASSETTE
- Shimano Ultegra 11-30
- CHAIN
- Shimano Ultegra
- CRANKSET
- Shimano Ultegra 52/36
- FRONT DERAILLEUR
- Shimano Ultegra Di2
- HANDLEBAR
- Zipp Service Course SL 80
- HANDLEBAR TAPE
- Arundel Gecko
- REAR DERAILLEUR
- Shimano Ultegra Di2
- SADDLE
- Ergon SR10 Sport
- SEATPOST
- Zipp Service Course SL
- SHIFT LEVERS
- Shimano Ultegra Di2
- STEM
- Zipp Service Course SL
- TIRES
- Panaracer Race A EVO4 28mm
- WHEELSET
- Reynolds AR41
Sizing Guide
49 | 52 | 54 | 56 | 58 | 61 | |
Crankset | 170 | 170 | 172.5 | 172.5 | 175 | 175 |
Handlebar | 40 | 40 | 42 | 42 | 44 | 44 |
Stem | 90 | 90 | 100 | 100 | 110 | 110 |
Frame Geometry

Standard Headtube
Frame Size | 49 | 52 | 54 | 56 | 58 | 61 |
A. Headtube Angle | 72.25 | 73 | 73 | 73.5 | 73.5 | 74 |
B. Seat Tube Angle | 75.5 | 74 | 73.5 | 73.25 | 73 | 72.5 |
C. Head Tube Length | 97 | 117 | 137 | 157 | 187 | 207 |
D. Effective Top Tube Length | 513 | 537 | 548 | 565 | 583 | 601 |
E. Seat Tube Length (c-t) | 482 | 512 | 532 | 552 | 572 | 602 |
F. Chainstay Length | 410 | 410 | 410 | 410 | 410 | 410 |
G. Stack | 501 | 523 | 539 | 560 | 588 | 608 |
H. Reach | 382 | 386 | 389 | 396 | 404 | 410 |
I. Bottom Bracket Drop | 71.5 | 71.5 | 69 | 69 | 67.5 | 67.5 |
J. Wheelbase | 969 | 974 | 981 | 992 | 1008 | 1015 |
K. Standover Height (w/700x28) | 750 | 775 | 791 | 815 | 839 | 862 |
L. Fork Rake | 44 | 44 | 44 | 44 | 44 | 44 |
Plus Headtube
49+ | 52+ | 54+ | 56+ | 58+ | 61+ | |
A. Headtube Angle | 72.25 | 73 | 73 | 73.5 | 73.5 | 74 |
B. Seat Tube Angle | 75.5 | 74 | 73.5 | 73.25 | 73 | 72.5 |
C. Head Tube Length | 117 | 137 | 157 | 177 | 207 | 227 |
D. Effective Top Tube Length | 513 | 537 | 548 | 565 | 583 | 601 |
E. Seat Tube Length (c-t) | 482 | 512 | 532 | 552 | 572 | 602 |
F. Chainstay Length | 410 | 410 | 410 | 410 | 410 | 410 |
G. Stack | 520 | 542 | 559 | 580 | 607 | 628 |
H. Reach | 376 | 381 | 382 | 391 | 398 | 404 |
I. Bottom Bracket Drop | 71.5 | 71.5 | 69 | 69 | 67.5 | 67.5 |
J. Wheelbase | 969 | 974 | 981 | 992 | 1008 | 1015 |
K. Standover Height (w/700x28) | 750 | 775 | 791 | 815 | 839 | 862 |
L. Fork Rake | 44 | 44 | 44 | 44 | 44 | 44 |