Shimano RC903 Road Shoes

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44 Reviews

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Features of Shimano RC903

Trusted by over 25 million satisfied customers worldwide

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Specifications Shimano RC903

Features of Shimano RC903

Closure Type Micrometric

Closure Type

Micrometric

Color White

Color

White

Gender Men

Gender

Men

Recommended Use Road Cycling

Recommended Use

Road Cycling

Product description of Shimano RC903 Road Shoes

Description summary

Unleash your full potential with the SHIMANO RC903, our flagship racing shoe evolved for ultimate performance. Lighter, sleeker, and more comfortable, it features a 360º surround wrapping upper for a supremely engineered fit. The anti-twist stabilizer heel cup secures your foot for intense acceleration, while dual BOA® Li2 dials provide quick, precise adjustments. Its integrated seamless construction and ultra-stiff carbon sole (index 12) deliver unparalleled stability and lightweight performance, ensuring maximum power transfer with every pedal stroke

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Our Flagship Racing Shoe Evolved With Even Greater Comfort, Less Weight, And Sleeker Lines.

Features:

- Lightweight and breathable microfiber leather upper provides optimal fit and superior comfort throughout your ride.
- Premium-finish heel cup with anti-twist stabilization secures optimal foot positioning for intense acceleration.
- Sleek, low-profile crossover lacing pattern elegantly secures forefoot.
- 360º surround wrapping upper creates a supremely engineered fit for all riders.
- Dual low-profile BOA® Li2 dials allow quick and precise micro-adjustments.
- Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance.

Specifications:

- Cleat Type: Spd-Sl
- Last Type: Shimano Dynalast
- Stiffness Index: 12
- Best Match Pedal: Pd-R9100
- Wider Cleat Adjustment Range: Yes
- Seamless Midsole Structure: Yes
- Surround Wrapping Upper: Yes
- Function Specific Zones: Yes
- Anti-Twist Stabilizer Heel Cup: Yes
- External Heel Cup: Yes
- Replaceable Heel Pad: Yes
- Hollow Channel: Yes
- Carbon Sole/Mid Sole: Yes
- Shimano Dynalast: Yes
- Silvadur®: Yes
- Closure: 2 Boa (Li2)
- Upper Material: Microfiber Synthetic Leather+Mesh
- Outsole Material: Tpu (Cover)
- Midsole Material: Carbon Fiber Composite
- Standard Insole: High Density Cup Insole With Adaptable Arch Pads
- Men´s Actual Weight : 225 G

Technology:

- Streamlined Heel Cup: Smoothly integrated heel cup with anti-twist stabilization inside
- Low-Profile Lace Guide: Sieek and slender lace guide provides a cleaner appearance on the top of the foot.
- Airy Synthetic Leather: Thin and breathable synthetic leather upper shaves even more grams for pro-fiding performance.
- Sleek Closure Configuration: Low-profile BOA® Fit System Li2 dials allow fast and precise micro-adjustments and quick release.
- Dynalast Profile: Well-established last shape provides thee pro-proven fit you know and love.
- 360 Surround-Wrapping Upper: Our 360 surrounding upper wraps the foot in a supportive cocoon to provide a supremely engineered fit, unparalleled stability and lightweight performance for all riders.
- Shimano´s Stiffest Sole: Dynalast Carbon fiber sole with level 12 stiffness.

Spdsl:
- Born of the pro tour demand for optimal power and endurance, the low-profile pedal technology has expanded to a wide range of cyclists, including competitors at all levels, sport, club and recreational riders. SPD-SL is a road pedal platform systematically engineered with SHIMANO footwear to transfer more power from your body to your bike. For pro riders the extra-wide, low-profile cleat distributes energy more evenly over a wider surface and transfers it more efficiently to the bike, under the most extreme pedaling loads. No wasted movement. No loss to flex, voids or mismatched shoe/pedal designs. It’s a core advantage that helps win races. The same energy efficiency that powers pro riders to the podium enhances the experience of other rider categories. Increased endurance for longer rides. More comfort and fun! System-engineered. Rider-tuned. You choose.

Power transfer efficiency:
- SPD-SL is the road specific refinement of the system. This pedal platform was designed specifically for the needs of world-class road racers. The seamless pedal and cleat interface for a more efficient power transfer under the extreme pedaling loads encountered in race competitions.

Shimano Dynalast:
- Optimized Shoe Last: The toe-spring section of a cycling shoe plays a key role in supporting efficient pedaling. Too high, and it causes increased tension in the plantar, calf, and hamstring muscles. Too low, and you get a bowlegged, inefficient pedaling form. Extensive research by Shimano´s R&D experts has produced a superior shoe last design with an optimized toe-spring section that promotes a smoother, more energy-efficient upstroke. Built based on feedback from pro riders, Shimano Dynalast helps reduce energy loss on long rides, letting you keep more in the tank for that final sprint to the line.

Upper Technology:
- The construction of our uppers and closure systems are customized to the characteristics of each rider’s foot.
Our Surround Wrapping Upper surrounds the whole foot with a seamless piece of leather,
which creates a better fit with fewer gaps between shoes and feet.

Specifications

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What our customers are saying about Shimano RC903 Road Shoes

These shoes provide exceptional comfort with a very hard, durable sole for excellent support. The improved heel design is a key feature, offering a more comfortable and secure heel fit. This updated construction holds the heel firmly for enhanced stability

Best shoes ever

2025/10/23

Howard

Easy to adjust the BOA, comfy, don’t waste any power during paddling

WORLDS BEST ROAD SHOE

2025/09/10

Scott

Stunning levels of comfort and power transfer. The very best road shoe you can buy.

Shoe width

2025/08/13

Shimano RC903

The shoes are spectacular, I just think that instead of ordering a 41.5/2, they should have ordered a 42. In terms of size, they are perfect, the width could be a little wider. I'll try them on to see if I should exchange them or not.

Top shoe

2025/07/24

Godi

My foot length is 27.5 cm and my shoe size is 44, 27.8 cm. Comfortable shoes with a perfect fit.

Shimano 27,6

2025/06/05

MUSTAPHA

43,5 is the correct size

chaussure shimano RC903

2025/05/08

Luc

According to some sites, the Shimano RC903 shoe also exists in a WIDE version. Can you give me some information on this and tell me which version of shoe I received (normal or wide)?

Top shoe

2025/04/25

Dave

Perfect shoe, I have size 43-43.5. I bought size 44.5

Impressive

2025/04/14

Roberto

Great power transfer and super comfortable shoes!

Sphyre

2024/12/03

Johann

Even more comfortable shoe than the previous model

Shimano 903

2024/11/16

pascal

Superb shoes, very comfortable and high-performance, lightweight

Perfect

2024/10/03

Laura

The most comfortable shoes I ever tried. It was worth the wait to get it in the right size. Be aware if sizing when purchasing, go by the cm on the size chart (Iøm usually a 42, needed a 43.5 in this model)

Perfect

2024/10/03

laura

The most comfortable shoes I ever tried. It was worth the wait to get it in the right size. Be aware of sizing when purchasing, go by the cm on the size chart (I´m usually a 42, needed a 43.5 in this model)

Beautiful shoes and fit perfectly

2024/09/30

Rudi

Excellent price, fast delivery. Shoes are very comfortable and fit well. The Bora closures work well and close the shoe well around your foot. I have shoe size 43 and have taken size 44 and it fits perfectly

Best quality - cool look!

2024/08/22

michaela

The RC93 is a perfect racing shoe that fits like a glove and looks really good too. Extremely stiff with sensational power transfer. Buying it online was effortless and reliable. I would buy it again anytime!

Great shoes

2024/08/08

Jonathan

Great shoes. Super comfortable. I am US 11.5 and I ordered 46.5 and fits perfectly. I have a 47 too but it feels a bit loose.

Rc903

2024/06/20

Igor

After all, a properly profiled heel is perfect. Very light and stiff but not without comfort. I recommend.

Chaussures shimano sphyre

2024/06/19

jean-yves-

Great shoes. better than my Sidi and a little bigger

Shimano sphyre

2024/06/19

jean-yves-

My best shoes to date. I recommend. A little bigger than Sidi. Perfect for me.

Review

2024/05/24

Massy

Really very satisfied with the purchase. Excellent product at an unbeatable price

Top cycling shoe

2024/05/22

Lars

Really satisfied with my purchase. Fast shipping and handling. The latest version of the S-Phyre is really an improvement and the fit is perfect for my feet.

Perfect

2024/05/22

Antonio

Perfect fit, incredible last. Very good

Great shoes

2024/05/15

Thierry

Top Product

Amazing quality

2024/05/13

Stephen

I tried the torch 3.0 and these actually are more comfortable and seem a snugger fit to my foot, super light, super stiff, very nice to look at, your foot is held very well in the heel area which makes it feel even more solid than other shoes, the boa feels super cheap on this shoe, for such an expensive shoe you would expect it to feel more premium (that's just my opinion) great product overall.

Brutal sneakers

2024/04/28

Javi Mobe

The Shimano S-PHYRE shoes are incredibly brutal, both in terms of stiffness and comfort. My foot size is 46 but you have to order a 47. That is, the size is small. Otherwise it is a very good material!!

Difference between normal and wide

2024/04/22

Gael

Hello, do you know the difference in width between the normal and wide model? Thanks in advance.

Size

2024/03/22

Julien

I am 27.4cm or 43 in everyday life. What size do you recommend? THANKS

Like a glove

2024/03/05

Ous

Excellent shoes, they fit the foot very well, I have a 45 and in this model I ordered a 46 and they fit me perfectly, perhaps a little narrower than another model, but no problem.. High-end finishes…a great shoe!! !

Top-notch road cycling shoes

2024/02/02

Pascal

Comfortable and very rigid shoes among the most beautiful and original pay attention to the size for thin feet I am 41 ordered in 41.5 perfect so not 1 size larger but 1/2 if not for wide feet there are the Wide, when rolling we crush the pedal with all its power without deformation while remaining comfortable, the only downside is fragility under the sole of the foot, watch out for stones and the price!

Lightweight and Nice

2024/01/24

Garland Brooks

Very nice cycling shoes, I ordered for the first time and so far very happy with them. True to size and looks amazing! Lightweight and easy on easy off with great comfort.

Great sneakers.

2023/12/26

Jaume Godayol.

Comfort from the first moment, lightness and beauty.

The class

2023/10/20

Markus

This is the 4th pair I've purchased. These are incredibly stiff and comfortable shoes. The best by far that I have used in 25 years. I recommend with your eyes closed.

Perfect

2023/09/10

Julien

2nd pair of sphyre for my part, very nice shoe, rigid, light comfortable for me... size perfect, I wear a size 43, ordered in 43.5 and it's OK... actually a little fitted but for me no worries white with the most beautiful effect...but don't be afraid of dirt...heartbroken to see in just a few uses the first stains appear, tire friction or small snags.. But I won't change for anything in the world

Perfect

2023/08/26

Rafael

Perfect shoe, light rigid, excellent design.

Gran zapatilla pero...

2023/08/24

Diego

Gran zapatilla, pero si eres de pie ancho, me lastima después de más de 3 horas de uso a diferencia de unas zapatillas Scott que tengo.

Perfect shoe

2023/08/12

Bram

Very comfortable lightweight shoe, super stiff Size is slightly larger than other shimano shoes. I normally have 47 in Shimano and have now had to take 46.5.

Beautiful and comfortable

2023/04/28

Stephane

Superb shoes, several shades of red, good price and fast delivery.

LUJO

2023/04/25

Jorge

Me gustó todo ,diseño, materiales y diseño!!!!!

Spectacular!!

2023/03/17

Toni

A very nice, light and comfortable shoe. It adjusts quickly. Good choice.

Sneakers

2023/02/28

Noé

Good product and good price

RC903

2023/02/23

Ohad

Amazing shoe not cheap but worth the money!

Rigidity and comfort

2023/02/18

David

Hard sole but they are very comfortable, they hold perfectly, beautiful design at the best price.

Nice shoes

2023/01/25

Stephan

Shoes are comfortable, easy to adjust, are extremely stiff, in short how racing bike shoes should fit. Have size 461/2 myself and ordered them in 48. Shoes are neat and delivered on time for the lowest price.

One of the best

2023/01/16

Arda

Received in 2 weeks. The shoe is really stiff and confirmable at the same time. Would be good option who has wide feet as well.

Best for me

2022/12/17

Oleg

Very comfortable and very hard sole. The heel has been slightly modified from the 902 but is more comfortable and holds the heel better.

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Write your question

Shimano Shoe Sizing?

2025/04/14

jason-meidhof

I don't see EU sizing listed. I typically ride a size 43 shoe, what is the equivalent US size from your website? Thanks

Answer of Jaume

Hi, I also wear a size EU 43. I´m currently wearing a size EU 43 1/2 in running shoes, so I had to try them on a shoe tree. My feet are narrow, but now they feel comfortable. If you have a wide foot, choose the wider model or go straight for a size EU 44 = US 9.5, JP 27.5 cm. I hope this helps.

Answer of Javier

Equivalence is 9 but you have to ask for 9.5 or 10

Razmer

2025/04/05

VASILII

Здравствуйте, ношу specialized еu-45.5 us-11.75 cm 29.3 Какой мне выбрать размер данной,модели?

Answer of BERNARD

Hello, you need a size up.

Shoes size

2025/03/30

hector

I wear a size 47 in specialized swork torch road shoe. What size do u recommend in the sphyre 903?

Answer of Mike

So I would rather take size 48 then you still have some space

Size

2025/03/26

Martin

Hello, my foot size is 27.8cm. I ordered Shimano RC 703 size 44 and they were tight. So I ordered the same size 45 and they are already big. I am thinking of returning them and buying these Shimano SH-RC903. Is there a size difference between these two models? What size would you recommend? Thanks

Answer of BERNARD

Hello, Shimano fits a little narrow, I wear 29 cm and often with other brands, 45 is enough. With them, you need 46 and there is a wider Wide version. So I think you should stay with 44 but in a wide version.

Answer of Martin

In my experience, RC903 shoes tend to fit small, so i would order 1/2 size larger. shimano size chart shows size 44 for 27.8cm foot, and i would recommend size 44.5 for proper fit.

Size

2025/02/14

Márcio

The size selector indicates 39, my foot measures 24.3 cm.... What size do you recommend 40?

Answer of Martin

I recommend going half size larger than shimano size selector indicates, so size 39.5. In my case, selector indicates 46.5, my foot measures 29.5 cm, but this size is too tight and 47 fits better.

Model type

2024/11/07

Stefano

Good morning I wanted to know if this Shimano RC903 model is the wide one. Thanks

Answer of Johan

No, it is the normal size. If it is a LARGE (wide) model, it is always indicated in the product title, like here: https://www.tradeinn.com/bikeinn/es/shimano-zapatillas-de-carretera-rc903-wide/139133753/p

Size?

2024/10/09

yamamoto tokihisa

I usually wear size 26. Is this product the normal or wide type?

Answer of Timmy

Usually, I think. I have narrow feet and the shoes are not too wide. Pay attention to the size. I´ve gone up half a size

Answer of massimo

The shoe is good for those with tapered feet, let´s say it´s better to take a half size larger than the shoes you usually wear. When it´s a WIDE model, the title says "Wide" https://www.tradeinn.com/bikeinn/en/shimano-rc903-wide-road-shoes/139133754/p

Information about the measures.

2024/09/07

Maurizio

My foot measures 27 cm, narrow sole, what size do you recommend?

Answer of Charles

On the Shimano size chart for 27 cm it is 43 The chart is accurate I ordered mine thanks to it and the size is good. https://www.tradeinn.com/images/pdf/cuadro_tallas/eng_shimano_sizechart_shoes.pdf

Answer of BERNARD

My foot is 29 cm and wide. I take 46 wide. 43 43.5 seems good to me. https://www.tradeinn.com/images/pdf/cuadro_tallas/eng_shimano_sizechart_shoes.pdf

What size do I need? I wear shoes that are 7.5 cm

2024/08/17

ivan-steve

I am 10.5 cm wide and 26.5 cm long just for my foot, I have some RC7 in 43EU but they feel very tight, I don´t know if this Sphyre 903 model is similar or smaller?

Answer of Jaume

They are similar. I have the RC9 and I got a 43 1/2 and they were very tight. I had to take them to the shoemaker to have them put on the last. So now I would get a 44. I usually wear a 42 1/2-43. With the width of your foot, I think a 431/2, wide, would be good for you since they usually have normal and wide feet.

What is the EU size?

2024/06/30

Thomas

Hi, is this a EU size 45?

Answer of pascal

Hello, the top level light style pedaling efficiency size 40 I wear size 39 in town no need to tighten too much they hold well. Size EU 45 corresponds to USA 10.5 and 28.0 cm

size

2024/05/31

Bruno Martins

I have an RC7 and RP9 both in size 46. Based on the measurements of my foot, the website tells me that it is a 47 for 28.6cm x 9.9cm (I think it is exaggerated) if it reduces to 28.5cm x 9.9cm it tells me a 46. interestingly these The sizes indicated on your website do not correspond to the sizes indicated in the Shimano store.

Answer of Asier

I have RC7 and RC9 and I use the same size

Sizing conflict

2024/04/04

Jacky

I am looking for size EU 42.5. Your chart shows EU 42.5 and 43 is US 9. I am confused. What is the equivalent US sizing for EU 42.5?

Answer of Pascal

EU 42 1/2 corresponds to USA 8.5 and 26.5 cm. EU 43 corresponds to USA 9, 27.0 cm. For information, I´m a size 41 in city shoes. I took the Sphyres in 41.5, it´s perfect, so for you it would be a size 9 or EU 43.

Cale look

2024/03/31

Nicolas

Can we put on the look wedges? Is this the latest model released?

Answer of Charles

Yes we can put look cleats, Shimano, Time etc. There is a very latest model which will be released but with only one BOA, a lower range

What size to choose

2023/09/28

ALDRIC MENDIZABAL

What size to buy for Shimano S Phyre 903 shoes. My foot measures 26.5 cm. I am usually a size 43 and currently in the S Phyre 902 I wear a size 43. But I have heard many comments that for the S phyre 903 the shoe is bigger. That is to say you have to choose a 42

Answer of Rafael Augusto

My foot size is 25.5 cm, I bought 26.5 and it was very comfortable, the S Phyre sneaker is a little bigger!! To find out your personal shoe size, we recommend that you measure your foot in cm and order the corresponding EU size, according to the size chart that you will find at the bottom of each product page, under the product description.

Shoe fit

2023/08/29

Daniele

Hi, I was wondering if these shoes are good for those with a slightly wider sole than average, exposed tarsus and metatarsal, I use the DTM KR0 and they don't cause me any problems, they have the same fit or do I need the wide version. Thank you .

Answer of francisco

I couldn´t tell you since I didn´t use the DTM, but these fit well for me in size 40 and my foot runs wide.

Mate

2023/08/28

Jason

My foot is 24.5 cm long, which size is best?

Answer of francisco

40, is the one I use and it suits me perfectly with this shoe

What width shoes

2023/08/13

Mathieu

There are 2 different widths. The standard and the wide version. I can't find the difference between the two anywhere to place an order .. thanks in advance for the info

Answer of francisco

It is the standard model, otherwise it would appear in the "wide" title.

What size should I take of the Shimano r903

2023/08/03

Giovanni

Hello, I have a 41 foot 26.2mm I bought a 41.5 Shimano but I bump slightly on the toe. Do you recommend getting a 42.5 or 42? Thank you

Answer of francisco

42, always one size more

Shimano RC903 Road Cycling Shoe

2023/06/14

Eric

I intend to purchase these shoes. I have size 45. Can I use shoe size 45.5? Or size 46?

Answer of francisco

46, always one more size

Answer of Jorge

No !!!aconsejo comprar, para pedalear zapatos más grandes

Speedplay

2023/05/10

Arjan Boot

Can speedplay decals be applied to these shoes? Gr, Arjan

Answer of francisco

If Speedplay can be used perfectly

How does it calculate the measure

2023/04/29

Riccardo

BW day Shimano RC 903 shoes My foot size 243 mm What size should I order??? Thank you

Answer of Johan

Hello, I would go on EU 40 1/2 (250 mm) for you then (me 283mm I took 45.5/290 mm)

How do I figure out which deck I need?

2023/04/15

Дмитрий

How do I know what pad width I need? What is the insole width for the wide version and the regular version? If my foot width is 10 cm, length is 28.5 cm, what size do I need, and the width version?

Answer of Johan

Hello, you have a fine foot like me. My foot is 28.5 and 10 wide also I took size 45.5 and it´s perfect!

shimano rc903 road cycling shoes

2023/02/07

JAIME

My question is about the Shimano RC903 shoes, on the web you have two references with different prices, what difference do these shoes have? the Refs are (17026582) and (17026605)

Answer of MASSIMO

Change the sole of the foot, this is the wide model: https://www.tradeinn.com/bikeinn/es/shimano-zapatillas-carretera-anchas-rc903/139133754/p

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Shimano RC903 Road Shoes

Features of Shimano RC903

Shimano - Footwear - Cycling shoes

Specifications Shimano RC903

Features of Shimano RC903

Closure Type Micrometric

Color White

Gender Men

Recommended Use Road Cycling

Product description of Shimano RC903 Road Shoes

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What our customers are saying about Shimano RC903 Road Shoes