Serios AF

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Serios AF

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In crosswinds and corners of the real world, there is no faster time trial/triathlon bike.
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Serios AF

Time Trials and triathlons are won by determination and grit. Hours training in the saddle are worth the precious seconds shaved off race times. The engineers behind the Serios road bikes have put in their work, too. Going into the design process fresh, they discovered the prevailing conventions in aero bike design were flawed: thinner profiles are not necessarily better. By experimenting with new and unique shapes, they created a bike that sees up to half the drag of the competition. It looks different because it is different.
Frame Serios Aero TimeTrial Frameset, Unidirectional Carbon, 1-3/8" Taper, Press-Fit 30 BB, Di2 Compatible
Fork Diamondback Serios Aero Time Trial Fork, Unidirectional Carbon,1-3/8" Taper, CFT Continuous Fiber Technology
Headset FSA IS-2-138
Cranks Shimano Dura Ace FC-9000 53/39T, 11sp
Bottom Bracket PRAXIS PF30-Shimano Conversion
Front Derailleur Shimano Dura Ace FD-9000, 11sp Braze-on
Rear Derailleur Shimano Dura Ace RD-9000, 11sp
Shifter Shimano Dura Ace Bar End, SL-BSR1, 11sp
Cogset Shimano Dura Ace CS-9000 11sp, 11-25T
Chain Shimano Dura Ace CN-9000
Front Hub HED Sonic 18h
Rear Hub HED Sonic 24h CT Shimano Clincher
Spokes Sapim CX-Ray
Rims HED Jet 6 Plus Front/ Jet 9 Plus Rear
Tires Front: Continental Attack 700x22, Rear: Continental Force 700x24
Brakes Shimano Dura Ace BR-9010 Direct Mount
Brake Levers HED Corsair Intergrated
Pedals Resin Test Ride Pedal
Handlebar HED Corsair Bar 42cm Flat 31.8 w/Carbon Lazy S Bend
Grips DBR Race tape w/Gel
Stem DB TT with full Hed Corsair Integration.
Seat ISM Road w/Cromo Rails
Seatpost DB TT Aero Carbon w/Ritchey Seat Clamp
Extras Front Derailleur Hanger, Rear Derailleur Hanger, 2x/10mm Aero Headset Spacer, 2x/15mm Aero Headset Spacer, DB "Bento Box" Top Tube Bag
Bike Size L/56cm / Rider Height: 5'9" - 6'0"
Seat Tube Length 514.0mm 546.0mm 566.0mm 587.0mm
Stand Over Height 742.0mm 763.0mm 784.0mm 805.0mm
Top Tube Length 0.0mm 0.0mm 0.0mm 0.0mm
Stack 501.0mm 531.6mm 551.6mm 572.1mm
Reach 395.1mm 408.0mm 420.6mm 433.5mm
Head Tube Length 103.4mm 124.9mm 145.9mm 167.4mm
Head Angle 72.5° 72.5° 72.5° 72.5°
Seat Angle 77.0° 77.0° 77.0° 77.0°
Wheel Base 974.3mm 992.0mm 1010.8mm 1030.3mm
Chain Stay Length 400.0mm 400.0mm 400.0mm 400.0mm
Fork Offset 45.0mm 45.0mm 45.0mm 45.0mm
BB Drop 65.0mm 75.0mm 75.0mm 75.0mm
Stem Length 95.0mm 95.0mm 105.0mm 115.0mm
Handlebar Width 400.0mm 400.0mm 400.0mm 400.0mm
Crank Length 170.0mm 172.5mm 172.5mm 175.0mm
Seat Post Length 270.0mm 270.0mm 270.0mm 350.0mm

Customer Reviews Write Your Own

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Overall Quality

Can easily share the stage with other top tier bikes.

Review by Terence
Overall Quality

I bought the SeriosAF frameset near the end of 2015, and only just built it as of March 2017. I hesitated completing the build because I was genuinely afraid of this bike. After seeing what I was capable of on a standard road bike, it spooked to me think about what I could do in a more focused aero position as well as a much more aero bike. I built it up with SRAM Force22, and Quarq Elsa power meter, and Reynolds Aero 72/90mm wheelset. As my fit and position evolved over these past months I've settled into the bike more and more. It never stops surprising me with how responsive it is, in both its handling and overall feel. Especially its handling as I've read time and time again that TT/Tri bikes tend to be somewhat unpredictable in the handling department. I've taken turns at speed both sitting up as well as down on the extensions. The bike feels planted and solid during high power efforts seated as well as standing. Also the fact that I'm able to fit this bike at 6'4" being at the upper end of it's height range. I've not had a full race in it yet, but I've never taken it on a ride shorter than 50miles, and the effort savings at speed are mind blowing. You can easy pace it or go full gas and the bike acts the same. I've taken this as an indication to Diamondback's current quality standard and recently purchased their Podium. I look forward to showing up to group rides and races and bringing the pain on something that isn't one of the other large name brand bikes. People sit and stare at my bike at the end of rides and wonder where it came from. Lost in a sea of Specialized, Trek, Cervelo etc. it's a joy to be on a piece of equipment that works as intended and consistently delivers.

(Posted on 8/10/2017)

A Superbike Undeniably!

Review by Colin C

I bought this bike as a frameset (including the HED cockpit and DA brakes) and built it up with Force x1 groupset, and a Red Dzero power meter. For racing I've got a Jet disk/9 wheelset, and a cheaper Tokyowheels carbon wheelset for training and some Strava... Given, like most elite amateur racers, that I have a shop discount through my team for the components and build, this bike was much, much cheaper than any bike of comparable caliber.

I'm not a wind tunnel, but I can say this bike is a nice, fast bike. I really like my (more aero) x1 build, and the opinion of other riders is that they think using it on a TT bike is either brilliant or incredibly stupid. I could actually climb mountains with that setup, although since it is at 19.6 pounds, I think I'll stick with my Emonda for climbing. As with most TT bikes, it's a hassle to setup and maintain. I had a problem for a while getting the bike's massive stem properly adjusted. Geometry of the 56 cm frame for my 6'0'' height is extremely aggressive. I've got all three inches of spacers on it, and the saddle-bar drop is still over 12 cm. That's great for a competitive time trialist, but a new triathlete might find it a bit much.
Overall, it's a good looking bike. I admit at first I was skeptical about buying it, as it's not well known. If I had to guess (and my guess is probably close since my sister is on Rally Cycling) this bike was made exclusively for the needs of Diamondback-sponsored Optum, turned Rally Cycling, Pro Continental team and their rider Thomas Zirbel -especially for his hour record attempt.

I'm writing this review in the off chance another mere mortal considers this bike and finds information lack. It is definitely a great option, especially if you also have access to the Diamondback discounts...

(Posted on 4/7/2017)