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Wide-fit Shimano S-PHYRE RC910 road shoes cut stack height
The Shimano S-PHYRE RC910 road cycling shoe carries a carbon hollow core sole that sits closer to the pedal axle than any Shimano road shoe before it, putting more of each pedal stroke directly into forward motion. This build uses the DYNALAST 2.0 wide last, giving a foot that spreads out under load real room instead of forcing a tighter dial pull to compensate. Dual BOA Li2F dials with textile laces still close down evenly across the wider volume, and a reinforced carbon heel structure keeps the foot from twisting loose during a hard sprint.
What Our Gearhead® Experts Are Saying:
"My foot spreads out wide once I'm out of the saddle, and the wide RC910 is the first flagship shoe where I'm not fighting the upper just to get full power down."
Details
- Road racing shoe engineered for maximum power transfer
- Wide width gives a spreading foot real room to load
- Carbon hollow core sole cuts stack height for direct power
- Dual BOA Li2F dials give an even, secure wrap
- Reinforced carbon heel resists twisting under hard efforts
- Expanded SPD-SLR cleat range with clear alignment marks
- Japanese microfiber upper stays light and breathable
- Item #SHIU301
- Upper Material
- Japanese microfiber
- Closure
- Dual BOA® Li2F
- Sole
- Carbon hollow core, low-stack SPD-SLR platform
- Cleat Compatibility
- SPD-SLR, 3-bolt
- Activity
- Road cycling
- Manufacturer Warranty
- 1 year

Shimano
S-PHYRE RC910 Road Shoe
Shimano's Lowest Stack Height Ever
Inside The S-PHYRE
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A More Natural Fit
DYNALAST 2.0 widens the forefoot so your toes spread instead of pinch under power, now offered in standard, wide, and narrow for a true, locked-in fit without sizing up.
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Dual BOA Precision Closure
Two BOA Li2F dials let you fine-tune tension across the forefoot and instep, for an even, secure wrap that holds through hard efforts without a mid-ride readjustment.
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Carbon Hollow Core Sole
A redesigned carbon hollow core sole cuts stack height by 0.5mm, shortening the distance between your foot and the pedal axle so more force reaches the pedal with every stroke.
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Premium Japanese Upper
The RC910's Japanese microfiber keeps the upper light and breathable without sacrificing the snug, race-ready hold your foot needs under hard efforts.
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Anti-Twist Heel Support
A reinforced carbon heel cup locks your heel in place and resists twisting, so the shoe stays stable through hard accelerations and out-of-the-saddle efforts.
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Wider Cleat Adjustment Range
The shoe's cleat mounting offers a wider adjustment range with easy-to-read alignment marks, so you can fine-tune fore-aft cleat position and return to it precisely every time.

Engineered As One System
SPD-SLR treats the shoe, cleat, and pedal as one connected system, not separate parts, so every contact point works to cut wasted movement and keep power moving efficiently from foot to road. The result is a connection you can feel with every pedal stroke.
Shop The System





100+ Years in the Making
Founded in Japan in 1921, Shimano has spent over a century earning the trust of riders at every level. Their precision engineering and relentless drive to innovate have made Shimano components a fixture on trails and roads worldwide.