{"product_id":"700c-carbon-tubeless-rim-50mm-30mm-wide-ultralight-375-470g-road-bike","title":"700c Carbon Tubeless Rim 50mm | 30mm Wide | Ultralight 375–470g | Road Bike","description":"\u003ch2 id=\"tinymce_scroll_sign\"\u003eExplore the High-Performance 700c Carbon Tubeless Rim for Road Bikes\u003c\/h2\u003e\n\u003cp\u003eThis 700c carbon tubeless rim delivers a verified weight range of \u003cstrong\u003e375g–470g per rim\u003c\/strong\u003e (four weight tiers available) across a 50mm aerodynamic profile and 30mm outer \/ 24–25mm inner width. Designed for road and gravel builds prioritising climbing efficiency, tubeless compatibility, and lateral stiffness.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e700c (ISO 622mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Profile\u003c\/td\u003e\n\u003ctd\u003eV-shape, 50mm height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Width\u003c\/td\u003e\n\u003ctd\u003e24mm or 25mm (specify at order)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERD\u003c\/td\u003e\n\u003ctd\u003e538mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Normal)\u003c\/td\u003e\n\u003ctd\u003e470 ± 15g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Superlight)\u003c\/td\u003e\n\u003ctd\u003e430 ± 10g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Ultralight)\u003c\/td\u003e\n\u003ctd\u003e400 ± 10g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Extreme Light)\u003c\/td\u003e\n\u003ctd\u003e375 ± 10g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward Compressive Strength\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;300 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLateral Torsion\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;50 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpoke Hole Tension\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;280 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Equilibrium\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;3g imbalance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlatness Tolerance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoundness Tolerance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e6.5mm (customisable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpoke Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e4.5mm (customisable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e7.5mm (customisable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNipple Offset (Front)\u003c\/td\u003e\n\u003ctd\u003e7°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNipple Offset (Rear)\u003c\/td\u003e\n\u003ctd\u003e5° or 7° (customisable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTyre Pressure Range\u003c\/td\u003e\n\u003ctd\u003e100–125 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Rider Weight\u003c\/td\u003e\n\u003ctd\u003e120 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWeight Tier Guide — Which Option Is Right for Your Build?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal (470g):\u003c\/strong\u003e Recommended for all-day training and heavier riders up to 120 kg. Higher spoke tension tolerance provides long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperlight (430g):\u003c\/strong\u003e Balanced option for race-training hybrids where longevity and weight savings are both priorities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltralight (400g):\u003c\/strong\u003e Suited to competitive road events and climbers targeting sub-1,400g wheelset builds. Note: reduced layup thickness versus Normal tier — inspect regularly under hard training loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Light (375g):\u003c\/strong\u003e Race-day performance tier. Best for riders under 75 kg on smooth road surfaces. Not recommended for prolonged training use or rough tarmac.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e30mm Wide Rim — Tubeless Compatibility\u003c\/h2\u003e\n\u003cp\u003eA 30mm outer \/ 24–25mm inner width accommodates tubeless tyres from \u003cstrong\u003e25c to 32c\u003c\/strong\u003e, optimising the tyre profile for improved contact patch and cornering grip compared to narrower 19–21mm internal rims. The hookless-compatible bead seat design supports modern tubeless-ready (TLR) tyres at pressures up to 125 psi.\u003c\/p\u003e\n\u003ch2\u003eKnown Tradeoffs\u003c\/h2\u003e\n\u003cp\u003eThe 50mm rim height provides measurable aerodynamic advantage at speeds above 35 km\/h, but adds \u003cstrong\u003eapproximately 80–120g per rim\u003c\/strong\u003e versus a 35mm equivalent — a relevant consideration for technical climbing stages where rotating mass outweighs aero gain. Riders targeting pure climbing builds may prefer a 35mm profile; this 50mm rim is best suited to \u003cstrong\u003eflat-to-rolling terrain and criterium racing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat is the best carbon tubeless rim for lightweight road cycling builds?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFor a lightweight road build, the Ultralight (400g) or Extreme Light (375g) tiers of this rim pair well with 25c or 28c tubeless tyres. The 30mm outer width is wide enough to optimise tyre profile without adding unnecessary rim mass.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow much does rim weight affect climbing performance?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eRotating mass has approximately 1.5–2× the effect of static frame weight on climbing acceleration. Reducing each rim by 70g (Normal to Ultralight) saves roughly 140g of rotating mass per wheelset — measurable on sustained climbs above 6% gradient.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat is the difference between 50mm and 60mm carbon rims for training?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003e50mm rims offer a better crosswind stability-to-aero balance for everyday training, particularly in variable wind conditions. 60mm rims deliver greater straight-line aero efficiency but are more sensitive to crosswinds above ~30 km\/h gusts.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eAre 30mm wide carbon rims better than 25mm for tubeless tyre grip?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, for tyres 25c and wider. A 30mm outer rim allows the tyre to assume a more rounded profile, improving the contact patch shape and reducing rolling resistance by approximately 3–5 watts at 40 km\/h versus a 23mm internal rim (based on published tyre manufacturer data).\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat should I look for when buying ultralight carbon rims under 400g?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eVerify spoke hole tension rating (this rim: \u0026gt;280 kg), forward compressive strength (\u0026gt;300 kg), and flatness tolerance (\u0026lt;0.15mm). Confirm the weight tier is a per-rim figure, not per-pair, and check the maximum rider weight rating (this rim: 120 kg).\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eAdvanced Design and Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe 700c carbon tubeless rim is engineered for road bike riders who demand speed and reliability. Featuring a 50mm rim depth combined with a 30mm internal width, this rim optimizes aerodynamic efficiency and tire stability. Its ultralight weight ranges between 375g and 470g, making it easy to accelerate and maneuver on various road conditions. The tubeless design also enhances puncture resistance and rolling efficiency, providing riders with a smoother and faster ride. This rim's carbon construction ensures high strength while keeping the weight minimal, suitable for competitive and casual cyclists alike.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eBenefits of Tubeless Technology\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eUtilizing tubeless compatibility, the 700c carbon tubeless rim allows riders to run lower tire pressures without risking pinch flats. This translates into improved traction and comfort on rough roads or during aggressive cornering. The tubeless setup reduces rolling resistance because there’s no inner tube to create friction. Additionally, it improves ride durability by minimizing puncture risks common with traditional tubes. For road cyclists prioritizing performance and reliability, this rim balances advanced technology with practical benefits, offering a superior riding experience that enhances endurance and speed.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Carbon Rim for Your Road Bike?\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eChoosing this 700c carbon tubeless rim means investing in cutting-edge materials and design tailored for road cycling excellence. Its balance of aerodynamics and lightweight durability improves energy transfer efficiency, helping riders maintain higher speeds with less effort. The 30mm width accommodates wider tires, which enhances traction and comfort, ideal for long rides or variable surfaces. Furthermore, the rim’s robust carbon fiber construction stands up to the demands of spirited riding without compromising reliability. Whether upgrading your current setup or building a high-performance wheelset, this rim delivers a premium cycling experience.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":48129022918910,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Superlight","offer_id":48129022951678,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Ultralight","offer_id":48129022984446,"sku":null,"price":330.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Extremelight","offer_id":48129023017214,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Standard","offer_id":48129023049982,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ 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