{"product_id":"zipp-303-s","title":"Zipp 303 S","description":"\u003cp\u003e\u003cb\u003eAll-Road Aerodynamics. Modern Hookless Speed.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe engineering highlight of the Zipp 303 S is its \u003cb\u003eWide Hookless Rim Profile\u003c\/b\u003e. Designed specifically around Zipp’s Total System Efficiency (TSE) concept, the 303 S targets the four key barriers to speed: wind resistance, gravity, rolling resistance, and vibration loss. The 23mm internal width allows tubeless tires to sit wider and flatter, creating a seamless transition between the tire and the carbon rim for superior aerodynamic drag reduction, reduced rolling resistance, and enhanced cornering grip at lower tire pressures.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy the Zipp 303 S is a Benchmark Wheelset:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTotal System Efficiency (TSE):\u003c\/b\u003e Tuned carbon layup and wide tubeless interface actively overcome vibration losses, converting more of your physical effort into forward momentum over rough pavement and gravel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e45mm Versatile Depth:\u003c\/b\u003e The ideal depth profile for all-around speed, offering proven aerodynamic drag savings on flat sections while remaining stable in crosswinds and lightweight on climbs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWide 23mm Internal Hookless Rim:\u003c\/b\u003e Optimized for 28mm road tires up to 50mm gravel rubber, providing a plumper tire footprint for unmatched cornering traction and reduced pinch flats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e76 \/ 176 DB Hubset:\u003c\/b\u003e Smooth-rolling, durable Zipp hubset with Centerlock disc interface and proven 3-pawl freehub engagement for low maintenance and crisp acceleration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTubeless Optimized:\u003c\/b\u003e Quick, hassle-free tubeless setup with secure bead seat locks for confident low-pressure riding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eZipp Lifetime Warranty:\u003c\/b\u003e Backed by Zipp’s comprehensive lifetime warranty against manufacturing defects and crash damage for total riding confidence.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRim Material:\u003c\/b\u003e Carbon Fiber (Hookless Tubeless Only)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWheel Size:\u003c\/b\u003e 700c\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRim Depth:\u003c\/b\u003e 45mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInternal Rim Width:\u003c\/b\u003e 23mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eExternal Rim Width:\u003c\/b\u003e 27mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHubs:\u003c\/b\u003e Zipp 76 DB (Front) \/ Zipp 176 DB (Rear)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBrake Interface:\u003c\/b\u003e Centerlock Disc\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSpoke Count:\u003c\/b\u003e 24 Front \/ 24 Rear (Sapim CX-Sprint)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWheelset Weight:\u003c\/b\u003e ~1,530g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFreehub Options:\u003c\/b\u003e SRAM XDR, Shimano\/SRAM 11\/12Speed Road\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe Alegro Perspective:\u003c\/b\u003e The 303 S is easily one of our most popular carbon wheel upgrades. Zipp took the proven aerodynamic pedigree of their top-tier wheels and packed it into a accessible, reliable package. Moving to a 23mm hookless rim lets you run 28c or 30c tubeless tires at lower pressures (around 50-65 PSI for most riders), which completely transforms your ride quality. It absorbs high-frequency road chatter, corners like it's on rails, and maintains high speeds with noticeably less effort.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUncompromising Carbon Performance. All-Road Versatility. Elevate Your Ride with Zipp.\u003c\/b\u003e\u003c\/p\u003e","brand":"Zipp","offers":[{"title":"Front (12 x 100mm)","offer_id":51225908379871,"sku":"00.1918.527.000","price":1000.0,"currency_code":"CAD","in_stock":false},{"title":"Rear (12 x 142mm) XDR","offer_id":51225908412639,"sku":null,"price":1100.0,"currency_code":"CAD","in_stock":false},{"title":"Rear (12 x 142mm) HG","offer_id":51225908445407,"sku":null,"price":1100.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5452\/3103\/files\/041700-01_1.jpg?v=1787066890","url":"https:\/\/alegrocycles.com\/products\/zipp-303-s","provider":"Alegro Cycles","version":"1.0","type":"link"}