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  • Diadora Vortex Racer II Shoes - Men's
  • Diadora Vortex Racer II Shoes - Men's 3/4 Back
  • Diadora Vortex Racer II Shoes - Men's Sole
  • Diadora Vortex Racer II Shoes - Men's 3/4 Front
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DiadoraVortex Racer II Shoes - Men's
Sale 65% Off$52.48 $149.95

Item # DIA001H

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  • Black/White/Red Fluo, 45.0 ($52.48)
  • Black/White/Red Fluo, 47.0 ($52.48)
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Item # DIA001H

Over 60 years of perfection.

Founded in a small Italian town in the middle of last century, Diadora has had a long, admirable history of crafting athletic shoes for soccer, running, cycling, and more. The brand's Vortex Racer II Shoes remain steadfast, mid-range members of its road cycling lineup, with trickle-down technology from pro-level siblings in a design that won't make you feel like you're sacrificing for price.

Diadora uses a very similar upper construction throughout its cycling shoes, making small alterations but retaining a balance of mesh and synthetic microfiber to provide a contoured shape and maintain breathability across the top of the foot. For the Vortex Racer II, Diadora uses its lightweight Suprell-Mesh upper, built around its form-fitting race last. Inside the shoe, a perforated EVA insole adds some support along the bottom of the foot, while a shaped heel cup — the same used in Diadora's pro-level models — adds security around the heel.

To allow for more approachable pricing while retaining stiffness, Diadora adds its Performance Road CR sole to the Vortex Racer. This composite-reinforced platform incorporates the company's NET Breathing System, which is a network of synthetic fibers molded around a breathable and waterproof membrane. This patented, ventilated design anticipates rider perspiration while preventing moisture, mud, and other external elements from getting into the shoes. The design of the sole also keeps stack height and weight to a minimum while maintaining impressive rigidity — a 6.0 on the stiffness index — to deliver valuable watts straight from your feet to the pedals.

Finally, Diadora pairs one Boa dial with a hook-and-loop strap to allow for a secure fit without the risk of painful pressure points or numbness across the sensitive areas on the top of your foot. The Vortex Racer II also includes a sturdy Duratech rubber heel pad, which provides excellent surface grip and high abrasion resistance and can be replaced to extend the life of the shoe.

Tech SpecsSize
Tech Specs
Upper Material
1 Boa dial, 1 hook-and-loop strap
Performance Road CR
Cleat Compatibility
3-bolt road
Recommended Use
road cycling
Manufacturer Warranty
1 year


Cycling Footwear
EUUS MenUS Women
36 4 5.5
37 5 6.25
38 5.5 7
38.5 5.75 7.5
39 6 8
39.5 6.5 8.25
40 7 8.5
40.5 7.5 9
41 8 9.5
41.5 8.25 9.75
42 8.5 10
42.5 9 10.5
43 9.5 11
43.5 9.75  
44 10  
44.5 10.5  
45 11  
45.5 11.5  
46 12  

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Avg. ride time: 34m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Great shoe

  • Familiarity: I've used it several times
  • Fit: True to size

I wear size US 8.5 and ordered a size 42 and they fit perfect. I used it for a local race and found them to be quite comfortable. I’ve used them together with my Time Expresso 4 without much issues. Another reviewer here stated the boa mechanism dug into his feet. I was able to tighten them snug without the above issues.

I bought these shoes for several reasons: BOA technology without the high price, stiffness, color matches my Giant TCR Advanced 2 Disc paint, and the unique Diadora style that sets it apart from the sea of ugly SIDI, Fizik, Giro shoes in the peleton.

Unanswered Question

What is the difference between the speed vortex and the vortex racer II?

Nice shoes, but...

  • Familiarity: I returned this product before using it
  • Fit: True to size

Nice shoes. They are pretty light and stiff, with a nice clean design, and fairly roomy toe box. The back of the Boa knob, however, creates a huge pressure point on the top of your foot when you snug it down, making it mildly annoying to downright painful. Definitely needs more padding in that area. They might possibly work for you if you wear thick socks and wear your shoes loose. I wanted these shoes, but I will have to return them.

I am interested in the Diadora Vortex racer 2 shoes. Do you recommend one size up from your normal US shoe size, because the sizing is in european sizing? I am normally a 10 so would you recommend an 11. I currently have a pair of Fizik R5 Uomo and I am wearing a size 11 and it fit snug and comfortable.

Fizik's usually fit a little bit tighter, so I would recommend your normal size on these.