An inside look at the Specialized Zwift Academy Shiv Disc
You may have seen the Specialized Zwift Academy athletes tearing up the scene in 2019 at various IRONMAN events around the globe in their pursuit of the Ironman World Championships in Kona, Hawaii. And if you haven’t seen them, from this point forward it will be very hard to miss them. Title sponsor Specialized Bicycles have just outfitted the 8 Zwift Academy athletes with the latest and greatest in triathlon tech and engineering - the all new SHIV Disc, and it has a custom paint job you can’t miss. Full Send Triathlon was able to get unrestricted access to one of these machines and is here to bring you through the ins and outs of what a bicycle worth $14,000 is all about.
Disclaimer: We do not know who this bike belongs to.
*All images contained in this post are the exclusive property of Full Send Triathlon © 2019 All Rights Reserved
We will start with the front of the bike and work backwards
There are two things to note about the fork:
It is very large
It is very wide (far away from the wheel)
The main purpose behind this design is a combination of aerodynamic optimization and stability in crosswinds. Creating a lot of space between the fork and the wheel allows the air to find its optimal smooth pathway through the fork, reducing drag. The width of the fork provides (so we’ve heard) amazing stability in crosswinds. The bike is equipped with disc brakes, which allows for the insane clearance between the wheel and the fork.
The nose cone above the wheel pops off, and inside you can find easy access to the Di2 junction box that connects all of the cables from the shifters.
The Front End
The front end of the bike offers a lot of adjust-ability, and offers it easily. Many ‘super bikes’ either are limited in their adjust-ability, or make it very difficult to get in there and change things around. This bike was engineered with that in mind and allows for easy adjustments, and a lot of possibilities with regard to pad stack, reach, and width.
And that concludes the front end of the bike. Pheeewwwsh that was a doozy. But all of those cool features are what make this bike so fast and easy to adjust.
The Middle of the Frame
Moving on to what we will call, “The middle of the frame”. Everything between the front end of the bike and the seat post.
And that about sums up the middle of the bike. The bottom bracket shell is Specialized’s proprietary OSBB which is essentially a BB30 bottom bracket shell with a 61mm width instead of the traditional 68mm width. So any BB30 crankset should be able to fit with an additional 7mm of spacers. The S-Works Shiv Disc comes stock with a ceramic speed bottom bracket installed.
A note on stock chainring sizes: This bike ships stock with 52/36 chainrings. You would think that the majority of people purchasing this bike, one of the most elite, high performance bikes out there, for $14,000, would want larger stock chainrings than 52/36. Just a thought.
Back of the Bike
Most notable on the back of the bike is the hydration system and the very low seat stays. The hydration unit actually improves aerodynamics when it is on the bike. That is, the bike is faster with the hydration unit on, than it is with it off. It acts as a sail in crosswinds and that is where it really speeds up the bike.
And that is most of the main features of the bike. To check out the entire range of features, specs, and geometry you can head to the description on the Specialized website.
If you prefer Ultegra to Dura-Ace, or you have your own groupset, or you would like Sram RED eTap AXS, you can check out all of the variations and color ways of the Shiv Disc that Specialized offers here.
And with that, we leave you with some photos of the bike in action. Again, we do not know who this bike belongs to. We just happened to see it out in the wild and snap these pics. Enjoy.