RC903 S-PHYRE Cycling Shoe - Men's
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Why We Like The Shimano RC903 S-PHYRE Cycling Shoe
Built specifically for road racing, the high-performance Shimano RC903 S-PHYRE Cycling Shoes are engineered to get you to the finish line with unmatched speed, power, and efficiency. The upper of the shoe is wrapped in 360º reinforced micro-fiber leather with perforated venting, allowing for excellent breathability, and is secured with dual BOA Li2 dials for quick adjustments, minimal pressure points, and a snug fit to your foot. DYNALAST technology reduces fatigue on longer rides by keeping your foot securely in place, while an anti-twist heel cup adds stability to the heel as you apply max power to the pedals during a breakaway or field sprint.
Details
- High-performance cycling shoe built for road racing
- 360º reinforced micro-fiber leather wrapping surrounds foot
- Dual BOA Li2 dials eliminate pressure points, hot spots
- Anti-twist heel cup stabilizes heel for maximum power
- DYNALAST technology ensures a smooth, efficient upstroke
- Compatible with SPD-SL and 3-hole road pedals
- Item runs small, so we recommend sizing up for best fit
- Item #SHIU1GL
- Upper Material
- reinforced micro-fiber leather, perforated venting
- Closure
- dual BOA Li2 dials
- Footbed
- anti-twist heel cup
- Midsole
- seamless structure
- Sole
- TPU (cover)
- Cleat Compatibility
- SPD-SL, 3-bolt
- Claimed Weight
- [single, size 42] 225g
- Manufacturer Warranty
- 1 year
- Activity
- road cycling
Reviews
Q&A
Overall Rating
4.5 based on 14 ratings
Review Summary
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.What do you think about this product?
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Selecting an option will reload the available reviews on the pageOctober 5, 2024
Great Rode Shoe
- Familiarity:
- I've used it several times
Lives up to hype - lightweight, good fit without insert as I have high instep, carbon increases pedal power and took 1/2 size smaller than my SIDIs.
Originally reviewed on Backcountry.com
June 28, 2024
Nice Shoe - Too Narrow
- Familiarity:
- I returned this product before using it
- Size Bought:
- 43.5
Shoe is well made but too narrow if your foot runs wide. The adjustability of the dials is nice and allows the user to get a precise fit.
June 26, 2024
Comfort and Performance
- Familiarity:
- I've put it through the wringer
- Size Bought:
- 41
First time purchasing a Shimano road shoe so I didn't know what to expect. True to size length wise, but the toe box seems really roomy to me. For me that was both good and bad. Good because it makes the shoe more comfortable in my opinion, and bad because with the stock insoles I was constantly tightening the dials to try and get a really snug fit. Eventually went to insoles that took up more room and that solved my problem. Really like the adjustment dials as you can really fine tune the fit and it's easy to do while on the bike.
June 24, 2024
Worth every penny, phenominal
- Familiarity:
- I've put it through the wringer
- Size Bought:
- 44
I've had these now for about a month and I could not be happier. I upgraded from Shimano RC-7's. The fit is very similar but it's a notch up in terms of quality and comfort. The pressure on the feet from these is a level up. I have less foot pain now then I had before on longer rides. The two way BOAs are also a nice touch for finding the perfect tension throughout the shoe on the foot. I use these 4-5 times a week. They are super responsive and the power transfer is awesome given the fit and stiffness in the sole. I would highly recommend these.
June 19, 2024
Great shoe and fit
- Familiarity:
- I've used it several times
purchased after having numerous issues with Fizik and other brands that were too tight. The fit is great and comfortable over long rides. Good arch support and the boa dials allow for perfect adjustment and easy to do on rides. The feeling of the power transfer is the biggest improvement over my previous entry level carbon shoes.
Originally reviewed on Backcountry.com
May 15, 2024
love my new S-phyre
- Familiarity:
- I've used it several times
- Size Bought:
- 41
Comfortable and so light that I thought the box was empty when I received them.
April 21, 2024
Favorite Shoe to Date
- Familiarity:
- I've used it several times
- Size Bought:
- 42.5
- Height:
- 5' 10"
- Weight:
- 148
I've ridden in shimano shoes for over 10 years, but never had RC9's. I must say, this shoe is definitely worth it. The fit is spot on and the boa's snug everything up nicely and have great adjustment so I can get them to feel exactly how I want them to. Also, the toe box seems to be roomier compared to the RC7's I was using, which is a welcomed change. Very nice venting, but not too breathable where my feet are cold on chillier days. I've used them for everthing from long road rides and gravel, to the occasional singletrack secteurs. Durable, stiff, great fit, and amazing looks. Honestly, what more could you ask for out of cycling shoes? I'd say Shimano has really outdone themselves with these S-PHYRES!
October 26, 2023
Best road shoes
- Familiarity:
- I've used it several times
- Size Bought:
- 46.5
I have used always SIDI brand wish is a great brand overall. But the RC903 S-PHYRE is the best cycling shoe its worth each dollar you pay for it. Lightweight, comfortable for long ride in you bike. I would buy it again and it’s 100% recommended
June 21, 2023
Great shoes, great Boa dials too
- Familiarity:
- I've put it through the wringer
- Size Bought:
- 45
- Height:
- 5' 11"
- Weight:
- 151
Grabbed these on a sale, and I do like getting new shoes. I'm a 10.5 in dress shoes, sneakers, basically everything, regular width. Of note, I do have high arches, I know, rare in the days of collapsed arches and bad feet due to no exercising. I went for a size 45 in these shoes, and they fit well. With a thin summer style sock, I could have maybe convinced myself to use a 44.5 all the same, but I ride year round, and do wear a thicker-but-still-thin merino wool sock in the winter that takes up the space, but I basically followed the size chart and it fit true to size. I'm a 44.5 in LG, 45 in Sidi, 44.5 in Fizik, 44 in Bont, 44.5 in Giro, so basically I don't notice a whole ton of variation in shoe manufacturers and can make it work. The included adjustable arch insoles do provide some extra pressure while pedaling, but it's not quite enough for me, so I do run my G8 insoles in these. I have another set of footbeds I've had made that I also switch around as needed, but there is room if you go that route. Nothing to note with them negative, they fit well, have some give as your foot spreads during a pedal stroke, you can cinch them down without pressure points, and the new micro-adjustable Boa dials on shoes are fantastic. They are much less bulky too, thinner profile knobs maybe is the right description. ' Shoes are subjective, but no hot spots, not even with the stock insoles, but I do like the G8s as I can tune them more. I'm an oddity with high arches and high instep, shoes do work fine for me, and the heel cup doesn't slide at all. They are quite airy, which is great on hot days or indoors, but you'll need a cover sooner than others for sure with these. I like the airy shoes vs the swamp fest. I run my center of cleat position 190mm from the back of my heel, and if I take a Look cleat, jam it back, it's basically dead on. The Shimano shoes do have another 5mm (ish) of adjustment if you adjust the red spacers around the cleat nuts, but I'm good with mine where they are. They are adjustable from inside, cut through the cover, move them around, tape cover back down. Great shoes for sure, I had a pair of the 900's long ago and they lasted a really long time, even with bad weather riding and all of that. I expect these will be the same.
June 13, 2023
light and comfy
- Familiarity:
- I've used it several times
- Size Bought:
- 42
- Height:
- 5' 7"
- Weight:
- 158
I was a bit worried moving on from a very old but cushy pair of Giro shoes I had been riding in for a decade. But even though these are a bit narrower, the closure is terrific and allows for very granular adjustments. They're also lighter and stiffer than my old shoes, and the ventilation in the sole actually works -- I can feel a stream of air under my foot when I am descending, which is a new and welcome experience. Just an excellent product all around.
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