{"product_id":"s-phyre-sh-rc903-pwr","title":"S-PHYRE SH-RC903 PWR","description":"\u003ch2\u003eExplosive Sprint Rigidity and Uncompromising Power Transfer\u003c\/h2\u003e\n\u003cp\u003eEngineered for explosive bunch sprints, high-wattage track surges, and flat-out time trial efforts, the Shimano S-PHYRE RC903 PWR road cycling shoe transforms every watt into pure forward acceleration. Built specifically for sprinters and power riders who demand absolute foot lockdown, this flagship shoe pairs a reinforced surround-wrapping upper with a race-tuned BOA Li2 metal dial and heavy-duty forefoot power strap. Combined with an ultra-stiff full-carbon sole and an anti-twist stabilizing heel cup, it completely eliminates foot flex and heel lift so you can unleash maximum power straight to the pedals when the finish line is in sight.\u003c\/p\u003e\n\u003ch3\u003eThe Best Bits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eReinforced Surround-Wrapping Upper:\u003c\/b\u003e Wraps seamlessly around your foot with an integrated tongue, delivering a supportive, zero-slop fit that resists upper stretch under peak sprint torque\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRace-Tuned Power Lockdown:\u003c\/b\u003e Micro-adjustable BOA Li2 metal dial combines with a Power Boost wire guide and front Velcro strap to firmly anchor the forefoot during all-out accelerations\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnti-Twist Stabilizing Heel Cup:\u003c\/b\u003e Rigid structural heel cradle locks your rear foot in an optimal biomechanical position, preventing energy-wasting heel slip during violent sprint jumps and high-cadence spinning\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Stiff Full Carbon Sole:\u003c\/b\u003e Maximum-stiffness carbon fiber sole plate delivers instantaneous, flex-free power transfer directly into your pedal interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Stack-Height Midsole:\u003c\/b\u003e Positions your foot closer to the pedal axle to stabilize your stroke, lower rotational mass, and maximize pedaling efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTargeted Dynamic Ventilation:\u003c\/b\u003e Variable-sized perforations promote continuous airflow to keep feet cool while allowing upper micro-flexibility to accommodate diverse foot anatomies\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDazzling Crystal Finish:\u003c\/b\u003e Premium optical coating on the sole and heel cup creates a brilliant, color-shifting finish that stands out in the paceline\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-section-type=\"features-triple\" data-theme=\"\"\u003e\n\u003cdiv data-section-type=\"feature\"\u003e\n\u003ch3\u003eMaximum Power Transmission\u003c\/h3\u003e\n\u003cp\u003eThe reinforced surround-wrapping upper and integrated tongue eliminate wasted energy by holding the foot firmly against an ultra-stiff carbon sole. A low stack-height midsole minimizes the gap between foot and pedal axle, stabilizing your stroke and translating every ounce of effort into pure forward speed.\u003c\/p\u003e\n\u003cimg alt=\"Shimano S-PHYRE RC903 PWR Power Transfer\" style=\"width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv data-section-type=\"feature\"\u003e\n\u003ch3\u003eUncompromising Foot Security\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for high-torque efforts, the anti-twist heel cup locks your rear foot securely in place during out-of-the-saddle attacks. Up front, the micro-adjustable BOA Li2 metal dial and Power Boost guide distribute heavy tension evenly across the instep without creating painful pressure points.\u003c\/p\u003e\n\u003cimg alt=\"Shimano S-PHYRE RC903 PWR Foot Lockdown\" style=\"width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e Shimano S-PHYRE RC903 PWR (RC903P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntended Use:\u003c\/b\u003e Road Racing, Bunch Sprints, Criteriums, Track, and Time Trials\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCleat Compatibility:\u003c\/b\u003e 3-Bolt Road (SPD-SL, Look, Time)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSole Material:\u003c\/b\u003e Full Carbon Fiber Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClosure System:\u003c\/b\u003e 1x BOA Li2 Metal Dial with Power Boost Guide + Forefoot Hook-and-Loop Strap\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUpper Material:\u003c\/b\u003e Reinforced Microfiber Synthetic Leather with Variable Perforations\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHeel Technology:\u003c\/b\u003e Integrated Anti-Twist Stabilizer Heel Cup\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e White (Featuring color-shifting optical coating on sole and heel)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"40 \/ M7","offer_id":67656855289958,"sku":"ESHRC903PCW01S40000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"41 \/ M7-7.5","offer_id":67656855322726,"sku":"ESHRC903PCW01S41000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"41.5 \/ M8","offer_id":67656855355494,"sku":"ESHRC903PCW01S41500","price":525.0,"currency_code":"USD","in_stock":true},{"title":"42 \/ M8.5","offer_id":67656855388262,"sku":"ESHRC903PCW01S42000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"42.5 \/ M8.5-9","offer_id":67656855421030,"sku":"ESHRC903PCW01S42500","price":525.0,"currency_code":"USD","in_stock":true},{"title":"43 \/ M9","offer_id":67656855453798,"sku":"ESHRC903PCW01S43000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"43.5 \/ M9.5","offer_id":67656855486566,"sku":"ESHRC903PCW01S43500","price":525.0,"currency_code":"USD","in_stock":true},{"title":"44 \/ M10","offer_id":67656855519334,"sku":"ESHRC903PCW01S44000","price":525.0,"currency_code":"USD","in_stock":false},{"title":"44.5 \/ M10-10.5","offer_id":67656855552102,"sku":"ESHRC903PCW01S44500","price":525.0,"currency_code":"USD","in_stock":false},{"title":"45 \/ M10.5","offer_id":67656855584870,"sku":"ESHRC903PCW01S45000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"45.5 \/ M11","offer_id":67656855617638,"sku":"ESHRC903PCW01S45500","price":525.0,"currency_code":"USD","in_stock":false},{"title":"46 \/ M11-11.5","offer_id":67656855650406,"sku":"ESHRC903PCW01S46000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"46.5 \/ M11.5","offer_id":67656855683174,"sku":"ESHRC903PCW01S46500","price":525.0,"currency_code":"USD","in_stock":true},{"title":"47 \/ M12","offer_id":67656855715942,"sku":"ESHRC903PCW01S47000","price":525.0,"currency_code":"USD","in_stock":true},{"title":"48 \/ M12.5","offer_id":67656855748710,"sku":"ESHRC903PCW01S48000","price":525.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0286\/1214\/files\/8c7264b03cddb504a3b162455fa979057f0c819b.jpg?v=1791416795","url":"https:\/\/bicyclewarehouse.com\/products\/s-phyre-sh-rc903-pwr","provider":"Bicycle Warehouse","version":"1.0","type":"link"}