Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards
  • Just In
  • Learn

RC903 S-PHYRE Wide Cycling Shoe - Men's

4.666666666666667 out of 5 stars
3 Reviews
Current price: $337.46 Original price: $449.95
25% off


Size Chart


Why We Like The Shimano RC903 S-PHYRE Wide Cycling Shoe

The race-engineered Shimano RC903 S-PHYRE Wide Cycling Shoes feature the same high-performance technology as its regular width version, but with a wider fit for riders who seek a bit of extra space. Using DYNALAST technology, a proprietary last built specifically for wide-width shoes, you are provided with a fit that conforms to the natural contours of your foot to allow for a smooth, efficient upstroke. An anti-twist heel cup in the shoe's footbed stabilizes your heel when you put down max watts, while its optimum stiffness levels maximize your power transfer and reduce energy loss.


  • Wide width cycling shoe engineered for race day
  • Wrapped in a 360º micro-fiber leather upper
  • DYNALAST wide-width technology provides natural fit
  • Dual BOA Li2 dials offer secure fit with zero hot spots
  • Anti-twist heel cup locks foot in optimal position
  • A refined toe box reduces tension in the lower legs
  • 3-bolt, SPD-SL pedal platform efficiently transfers power
  • Item runs small, so we recommend sizing up for best fit
  • Item #SHIU1GN
Upper Material
reinforced micro-fiber leather upper, perforated venting
dual BOA Li2 dials
anti-twist heel cup
seamless structure
TPU (cover)
Cleat Compatibility
SPD-SL, 3-bolt
Claimed Weight
[size 42] 8oz (225g)
Manufacturer Warranty
1 year
road cycling

Overall Rating

4.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 2 reviews

Fits Slightly Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
4 out of 5 stars

May 16, 2024

Shoes run Narrow

I've used it once or twice and have initial impressions

I wear a 44 in almost all Shimano shoes but went with 44 Wide and they fit well. Also tried a 45 but they were too long. Hope this helps.

kco4805912 k

Originally reviewed on Backcountry.com

5 out of 5 stars

May 11, 2024


I've put it through the wringer
Size Bought:
5' 8"

I went through a difficult, painful time with replacing my shoes. I went through 2-3 pair trying to find shoes which were comfortable. I experience pain after an hour or so on my bike. I had to resort to a podiatrist for injections in one foot. I finally read about these shoes with the wide toe box. I was somewhat reluctant to buy shoes online but decided to try them. I am so happy and relieved I did! They are the most comfortable shoes I’ve ever worn for biking. I am riding for hours with no pain. They are pricey but well worth it.

Michael S
5 out of 5 stars

March 16, 2024

Perfect fit and high quality shoes

I've used it several times
Size Bought:

I bought these shoes about a month or so ago. Since the moment I put them on, I love the fit. I have a wide toe box and somewhat narrow ankle and the sapphire’s fit perfectly. The ankle retention is perfect. After trying most of the higher end brands (Sidi, Specialized, Giro, Lake), I would say that this so far are the best fitting shoes. The carbon sole is plenty stiff and doesn’t cause me hot spots like the Sidi shots.

James B