Crit – Di2


(8 customer reviews)

The Crit (C Di2- Competition level, R Di2- Race level) is our Flagship race ready road bike for the rider that wants it all.  At a category leading pricepoint, the Crit Di2 is the superbike you can actually afford.  Equipped with the Premium Shimano Ultegra and Dura Ace electronic Di2 groupsets and an optional integrated Stages Power meter, as well as an advanced full carbon Aero frameset and U profile carbon wheels, this bike doesn’t need anything but a rider willing to stomp on the pedals.

  • Full Carbon SP-11 aero frameset with integrated cockpit (traditional bar/stem combo optional)
  • Shimano Ultegra or Dura Ace Di2 Electronic groupset (more info)
  • Optional Stages Gen 3 L or L/R Dual Power meter
  • C5 Wide deep section full-carbon wheelset  (Other depths available)
  • 15.2lbs (Crit R Di2), 16.2lbs (Crit C Di2) in Medium frame size
  • Synchro Shift capability (more info)
  • Crash Protection and Spec warranty

Allows Di2 communication with compatible bike computer (garmin, wahoo etc) and handheld android/apple devices. e-tube app

SKU: SCPROX Category: Tags: , , , , , ,

Concept of One

We focus on each build one by one.  No mass production, just attention to every little detail.  If you want your favorite bar tape, no problem.  You want your frameset personalized, painted a custom color with special graphics?  Let’s do it.  Spec wants to change the way you think about buying a bike.  Contact us today to see how we can turn your vision into a rolling work of art.

Colors & Components

Powered Up

The Crit (C-Competition level, R-Race level) is equipped with fully electronic shifting utilizing the advanced Shimano Ultegra and Dura Ace Di2 Groupsets.  The Long Lasting battery charges in 1.5 hours or less, and lasts approximately 1250+ miles to a charge.  With Bluetooth capability, your Crit Di2 can transmit battery status, gear selection, auto shifting notifications and more through your Favorite Stages, Garmin, Wahoo and other head units.  Maintenace free shifting (no cables to wear) and fast precise shifting with low hand fatigue is the real value in upgrading to the Di2 Electronic shifting.

Perfect Fit

Use our charts below to get a feel for the size Crit you belong on.  If you are very familiar with your preferred bike size and geometry, you may not need to look further.  If you need consultation on proper fit, and sizing advice, call or email.

Crit Di2 Frame Sizing

Height (Inches)Low FlexibilityAverage FlexibilityHigh Flexibility
5'4"XS (49cm)XS (49cm)XS (49cm)
5'6"S (51cm)XSXS
5'7"SS (51cm)XS
5'8"M (54cm)SS (51cm)
5'9"MM (54cm)S
5'10"MMM (54cm)
5'11"L (56cm)MM
6'LL (56cm)M
6'1"XL (58cm)LL (56cm)
6'2"XLXL (58cm)L
6'3"-XLXL (58cm)
Frame Sizing by height and flexibility

The Competition

2018 Spec Crit Pro X2018 Trek Madone 9.52018 Canyon Aeroad SLX 8.02018 Scott Foil 102018 Giant Propel Advanced 0
GroupsetUltegra R8050 Di2Ultegra R8050 Di2Ultegra R8070 Di2Ultegra R8050 Di2Ultegra R8050 Di2
FrameAero Full Carbon (1050g)Aero Full Carbon (950g)Aero Full Carbon (N/A)Aero Full Carbon (985g)Aero Full Carbon (1100g)
Power MeterXcadey Power MeterNoNoNoNo
Handlebar/CockpitIntegrated Carbon AeroIntegrated Carbon AeroIntegrated Carbon AeroAlloy bar/stemAlloy bar/stem
Wheels50mm (25mm wide) Carbon Aero (1650g)35mm (25.5mm wide) Carbon Aero (1506g)62mm (25mm wide) Carbon Aero
30mm Alloy (23mm wide)
55mm (23mm wide) Carbon Alloy Aero (1860g)
Bluetooth ConnectivityYesNoNoNoNo
Tires (Best PerformanceContinental GP4000S IIBontrager R3 Hard Case LiteContinental GP Attack III/
GP Force III
Continental Grand SportGiant Gavia Race 1
Computer MountYes (factory option)Yes (factory option)Yes (factory option)aftermarket onlyaftermarket only
Fully CustomizableYesYesNoNoNo
Weight16.2 lbs (7.35kg)16.41 lbs (7.45kg)16.5 lbs (7.5kg)16.64 lbs (7.55 kg)Not Available (heavy)
Overall Rating (categories won or tied)9/125/125/122/121/13


This is the nitty gritty, the details that bike nerds truly sweat over.  This is a great way to compare against a bike that you know fits well, and gain insight into how aggressive of a position you can achieve looking at head-tube length etc.  If you need a hand deciphering this mess of numbers, contact us!

Frame sizeFrame sizeXS (49cm)S (51cm)M (54cm)L (56cm)XL (58cm)
ASeat tube length (mm)490510540560580
B Top tube length (mm)515532547562577
CBottom bracket offset (mm)-69-69-69-69-69
DChainstay length (mm)405405405405405
ESeat tube angle (deg)73°73°73°73°73°
FHead tube angle (deg)70.5°72°73°73.5°74°
GFront center (mm)565570575585595
HHead tube length (mm)108125148170195
IFork offset (mm)4343434343
JReach (mm)361372379387394
KStack (mm)504525550574600

The Bike

The Crit (C Di2-Competition level, R Di2-Race level) are our Flagship racing road bike for those who want speed with no compromise.  With aggressive frame geometry, air slicing tube shapes, and aero integrated carbon cockpit and wheels, there are few marginal gains left to be unturned.  Equipped with Shimano Ultegra and Dura Ace Di2 groupset options, Crisp, fatique free shifts are just a click of a button.

  • Full Carbon SP-11 aero frameset and integrated cockpit
  • Shimano Ultegra and Dura Ace Di2 Electronic groupset options
  • Stages power meter cranksets factory equipped options (save money vs buying one aftermarket)
  • C50 Wide Lightweight Carbon Wheelset (U Shaped rim cross section)
  • 15.2lbs (Crit R Di2), 16.2lbs (Crit C Di2) in Medium frame size
  • Crash Protection and Spec warranty (more info)

Power Meter
Every Spec Crit can be equipped with the optional Stages Cycling crank arm based power meters.  As an amateur or elite level rider, training and racing with a power meter is without a doubt an important upgrade option.

The deep section C50 Full carbon wheel set is our favorite all-rounder with a balance of Ultra-lightweight and advanced wide wheel profile (26mm) aerodynamics. At 50mm deep, it’s light yet still gives significant aero gains over a traditional climbing or box wheel. We couple each set of C50’s with the high performance Continental GP4000S II tires. The tires are perfectly matched to the frontal aero profile of the C50 wheelset, making this an air slicing combo.

The Crit’s advanced truncated tube shapes, slippery fork and seatpost sections, and a fully integrated aero cockpit give you gives you all of the gains, and aesthetics expected in a premium Aero road bike. You will without a doubt feel the effects. Please ask if you are unsure of frame sizing or fit after looking at our charts.

Warranty and Spec Bicycles Guarantee
At  Spec bikes, we offer a 14 day return policy on new/unused items (see Terms and Conditions), and we will warranty every Spec for 1 year from purchase date (3 year frame warranty with crash protection) by repair or exchange. We stand behind the products we offer, and strive to make every customer extremely happy with the quality and value of the bicycles and parts we sell. We are always available to answer any questions you might have, and give technical advice on assembly or operation.

Additional Di2 related features

Weight 35 lbs
Dimensions 56 × 10 × 28 in
Frame Sizes

49cm XS (special order), 51cm S, 54cm M, 56cm L, 58cm XL (special order)

Model Tier

Crit C Di2 (Ultegra Di2), Crit R Di2 (Dura Ace Di2)

8 reviews for Crit – Di2

  1. Ian Titanium

    Incredible service. I didn’t purchase a full bike, but I had them do a full R8050 Di2 group w/ power meter install on my Lynskey Titanium frame, as well as carbon cockpit, and seat/post. It turned out great, and was a better priced option compared to purchasing a fully built lynskey with the comparable parts, and Spec gave me complete control and ability to customize.

    • specbicycles

      It was a pleasure working with you Ian, we hope to get you on a Crit in the near future!

  2. Sean M

    I’m a fairly new cyclist, but I didn’t want my equipment to hold me back. I bought a spec because it is a local company (for me), and I have no regrets. Amazing service, Zero reason to buy a Trek, Giant with this kit….you’re looking at double the price, without a power meter.

    • specbicycles

      We have had a pleasure working with you Sean! Thanks for the great feedback.

  3. Kelly Malott

    Amazing value for level of kit this bike comes with standard. I shopped hard for something comparable at this price point, it’s non-existent.

    • specbicycles

      We really appreciate the feedback, and that is exactly what we are hoping for, a quality road bike that has NO competition! Thank you Kelly.

  4. Simon G.

    Great Bike!

    Thank you for all of your assistance in helping me choose my new bicycle. The Spec Crit X is a great bike! It’s fast, stiff, and very well built. As you know, I was nervous about buying a bicycle without test riding it first due to any potential fit issues, but after providing you all of my preferred bike geometry, my Crit X is “dialed in” perfectly.

    My Crit X is a great bike at a great price. I would highly recommend Spec Bicycles for their quality bicycles, but also for their phenomenal customer service! thanks Simon

    • specbicycles

      It was great working with you Simon. We strive to make the Direct to consumer bike buying experience as pain-free as possible, and likely BETTER than using your Local Bike shop. We absolutely love hearing this kind of feedback!

  5. B Ong

    Super Gorgeous ROAD BIKE! Great customer support! Fast and Responsive Frameset/Components!!! This bike will help you break your PR’s without breaking your bank! Highly Recommended! Thanks Spec!!! Great Job JOSH!!!

    • Josh@spec

      Thank you very much Bjorn, Happy to have you aboard one of our rocket ships! Look forward to seeing you breaking PR’s and KOM’s on Strava this season.

  6. Jack Kordic

    I can’t even express how happy I am that I purchased a Spec bike. Everything about this bike is amazing , from the frame to rims to the Di2, it’s second to none. And the fact that I was able to customize it to exactly how I wanted it to look is crucial when making a purchase. And what makes it even more special is the customer service that I received to make sure that everything was perfect.. Josh, thank you , your an amazing person with an amazing product. I’m very happy with my bike and I’m getting a lot of looks and compliments on it …

    • Josh@spec

      It was great working with you, and you putting the trust in us to deliver your dream bike. Thank you Jack!

  7. Kevin Brown

    I would like to thank Josh in helping me build my dream climbing bike I bought the crit pro x everything I thought it would be and more.I love it more every time I ride it,Josh great customer service top notch.

    • Josh@spec

      We really enjoyed working with you Kevin, Enjoy! -Josh

  8. Nathan Jacobs

    I’m a new owner of a Spec Crit Pro X and I couldn’t be happier! I wish I would have pulled the trigger sooner. The amount of power I can put out climbing is a huge improvement from my old Trek. The bike is so strong and well built and amazingly light at the same time. Plus, it looks sweet with the custom aero bars and DI2 shifter. I’m a triathlete and the bike leg is no longer my weakness. I can’t wait to get up in the morning to ride!

    Thanks Josh, and Spec!!!

    • Josh@spec

      Thanks for trusting Spec to deliver!

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