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Shimano’s RC503 and RC903 use SPD-SL cleats for road riding; RC503 has a BOA dial and RC903 has dual BOA dials. Start with your pedals.

Road or off-road labels cannot establish pedal compatibility or shoe size.

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With no preferences selected: S-PHYRE SH-RC903 is one option to compare.

No hands-on testingMethod and sources

S-PHYRE SH-RC903 · first with a product link

  • Riding use: Road.
  • Cleat system: SPD-SL cleats.
What to note:

Closure: Dual BOA dials.

View at Shimano

If you choose SPD cleats for cleat system, the first option with a product link becomes SH-EX900.

10 models compared; 10 have a product-page link.

The picks

5 options to compare

Compare the details that matter to your setup.

An option to compare

S-PHYRE SH-RC903

Riding use: Road.

Key details

  • Cleat system: SPD-SL cleats.

What to note

Closure: Dual BOA dials.

Cleat system: SPD-SL cleatsClosure: Dual BOA dialsRiding use: Road
See all 3 specs
Cleat systemSPD-SL cleats
ClosureDual BOA dials
Riding useRoad

3 of 3 specs available · source checked September 26, 2026 · Source ↗
Shimano · Product page checked September 26, 2026

View at Shimano
Cleat system: SPD cleats

SH-EX900

Closure: Dual BOA dials.

Key details

  • Riding use: Adventure.

What to note

Cleat system: SPD cleats.

Cleat system: SPD cleatsClosure: Dual BOA dialsRiding use: Adventure
See all 3 specs
Cleat systemSPD cleats
ClosureDual BOA dials
Riding useAdventure

3 of 3 specs available · source checked September 26, 2026 · Source ↗
Shimano · Product page checked September 26, 2026

View at Shimano
Closure: BOA dial

SH-IC501

Cleat system: SPD cleats.

Key details

  • Riding use: Indoor.

What to note

Closure: BOA dial.

Cleat system: SPD cleatsClosure: BOA dialRiding use: Indoor
See all 3 specs
Cleat systemSPD cleats
ClosureBOA dial
Riding useIndoor

3 of 3 specs available · source checked September 26, 2026 · Source ↗
Shimano · Product page checked September 26, 2026

View at Shimano
Closure: BOA dial and strap

SH-GE900

Closure: BOA dial and strap.

Key details

  • Riding use: Gravity.

What to note

Cleat system: SPD cleats.

Cleat system: SPD cleatsClosure: BOA dial and strapRiding use: Gravity
See all 3 specs
Cleat systemSPD cleats
ClosureBOA dial and strap
Riding useGravity

3 of 3 specs available · source checked September 26, 2026 · Source ↗
Shimano · Product page checked September 26, 2026

View at Shimano
Riding use: Gravel

SH-RX600

Closure: BOA dial.

Key details

  • Riding use: Gravel.

What to note

Cleat system: SPD cleats.

Cleat system: SPD cleatsClosure: BOA dialRiding use: Gravel
See all 3 specs
Cleat systemSPD cleats
ClosureBOA dial
Riding useGravel

3 of 3 specs available · source checked September 26, 2026 · Source ↗
Shimano · Product page checked September 26, 2026

View at Shimano

Comparing S-PHYRE SH-RC903 · S-PHYRE SH-XC903

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The facts that differ

Choose up to three models to compare side by side.

1 identical spec shown. Details that do not apply to these models are omitted.

Published specification comparison
SpecS-PHYRE SH-RC903No preferences selected.S-PHYRE SH-XC903No preferences selected.
Cleat systemSPD-SL cleatsNot listed by the maker
ClosureDual BOA dialsDual BOA dials
Riding useRoadOff Road

S-PHYRE SH-RC903

No preferences selected.

Cleat system
SPD-SL cleats
Closure
Dual BOA dials
Riding use
Road

S-PHYRE SH-XC903

No preferences selected.

Cleat system
Not listed by the maker
Closure
Dual BOA dials
Riding use
Off Road

S-PHYRE SH-RC903

View at Shimano

S-PHYRE SH-XC903

View at Shimano

Compare all 10 models

— = no verified listing yet. The published order is independent of links.

All models and their decision specs
ProductHow it comparesKey specCompareAction
S-PHYRE SH-RC903
Compared with S-PHYRE SH-XC903: riding use, Road vs Off Road.
Cleat system: SPD-SL cleatsView at Shimano
S-PHYRE SH-XC903
Compared with SH-EX900: riding use, Off Road vs Adventure.
Closure: Dual BOA dialsView at Shimano
SH-EX900
Compared with SH-GE500: closure, Dual BOA dials vs Laces and strap.
Cleat system: SPD cleatsView at Shimano
SH-GE500
Compared with SH-GE900: closure, Laces and strap vs BOA dial and strap.
Cleat system: SPD cleatsView at Shimano
SH-GE700
Compared with SH-GE900: closure, Laces and strap vs BOA dial and strap.
Cleat system: SPD cleatsView at Shimano
SH-GE900
Compared with SH-IC501: closure, BOA dial and strap vs BOA dial.
Cleat system: SPD cleatsView at Shimano
SH-IC501
Compared with SH-RC503: cleat system, SPD cleats vs SPD-SL cleats.
Cleat system: SPD cleatsView at Shimano
S-PHYRE SH-RC903
Compared with S-PHYRE SH-XC903: riding use, Road vs Off Road.
Cleat system: SPD-SL cleats
View at Shimano
S-PHYRE SH-XC903
Compared with SH-EX900: riding use, Off Road vs Adventure.
Closure: Dual BOA dials
View at Shimano
SH-EX900
Compared with SH-GE500: closure, Dual BOA dials vs Laces and strap.
Cleat system: SPD cleats
View at Shimano
SH-GE500
Compared with SH-GE900: closure, Laces and strap vs BOA dial and strap.
Cleat system: SPD cleats
View at Shimano
SH-GE700
Compared with SH-GE900: closure, Laces and strap vs BOA dial and strap.
Cleat system: SPD cleats
View at Shimano
SH-GE900
Compared with SH-IC501: closure, BOA dial and strap vs BOA dial.
Cleat system: SPD cleats
View at Shimano
SH-IC501
Compared with SH-RC503: cleat system, SPD cleats vs SPD-SL cleats.
Cleat system: SPD cleats
View at Shimano
10 catalog models

How the comparison works

Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.

Source dates appear with each link below. A source date does not confirm today's price or stock.

Finder methodologyReport a correction
Sources for all 10 models

Road, gravel and gravity labels do not identify your cleats

Shimano separates SPD-SL cleats from SPD cleats. Its Road shoes here use SPD-SL, while the Gravity, Adventure, Indoor and Gravel entries with known cleat systems use SPD. Begin with your pedal system, then decide which riding-use group you want.

Cleat details are supported for 9 shoes. The remaining Off-road entry has an unknown system, so an Off-road choice alone cannot resolve compatibility.

Compare closures without guessing shoe fit

The 10 Shimano shoes include BOA dial, Dual BOA dials, Laces and strap, and BOA dial and strap closures. Gravity entries span the latter closure styles, so the riding-use label does not dictate how you fasten the shoe.

This page compares Shimano’s shoe descriptions without fitting them on riders. Choose your size and width using the selected model’s guidance, and check that size’s availability. Release technique and pedal instructions still matter after you find a cleat match.

Before you buy

Will every shoe work with my pedals?

Use your pedal’s cleat system and the exact shoe’s support information. Shimano RC503 and RC903 both support SPD-SL for road riding. RC503 has one BOA dial; RC903 has dual BOA dials. Select controls within that supported system. The finder compares models; it cannot choose shoe size.

Does the finder select my shoe size?

It compares models. Use the manufacturer’s size and width guide, and confirm the selected size is available before buying.

Does the riding-use label establish pedal compatibility?

A Road or Off-road category describes intended use, while the cleat field names a system. XC903’s cleat value remains unknown because its saved description is unclear. Your exact pedal system and the chosen shoe variant still need explicit compatibility information.