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The S-Phyre RC910 Has Arrived
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Dual BOA precision meets a lower stack in the RC910
The Shimano S-PHYRE RC910 road cycling shoe drops to the lowest stack height Shimano has built into a road shoe, using a carbon hollow core sole to shorten the distance between foot and pedal axle. The DYNALAST 2.0 platform cuts pressure across the foot compared to the outgoing last while keeping the locked-in feel a sprint finish demands. An expanded SPD-SLR cleat adjustment range with printed alignment marks lets a rider carry over a fit dialed in on a previous shoe without re-measuring from scratch.
What Our Gearhead® Experts Are Saying:
"Swapping a rider off an older Shimano shoe into the RC910, the stack height drop alone changed their saddle-to-pedal geometry enough that we had to recheck cleat position before anything else."
Details
- Road racing shoe engineered for maximum power transfer
- Carbon hollow core sole cuts stack height for direct power
- DYNALAST 2.0 last widens the forefoot for less pressure
- 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 #SHIU300
- 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.
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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.