{"title":"700C 28mm","description":"\u003cp data-mce-fragment=\"1\"\u003e700C size carbon rim,most for disc brake rim brake optional,apply for road,grave,time trial etc \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e28mm outer wide,21mm inner wide  is compatible tire size from 25C to 43C\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eToray T700 with stable resin,complete hand made product,100% quality check by auto machine for the stable quality.More models and weave option etc for your OEM projects\u003c\/p\u003e","products":[{"product_id":"bola-700c-carbon-tubeless-road-rim-50mm-deep-28mm-wide-hooked-or-hookless-370-470g","title":"Bola 700c Carbon Tubeless Road Rim – 50mm Deep, 28mm Wide, Hooked or Hookless, 370–470g","description":"\u003ch2\u003eBola 700c Carbon Tubeless Road Rim — 50mm Deep, 28mm Wide\u003c\/h2\u003e\n\u003cp\u003eThe Bola 50mm carbon tubeless road rim delivers a measurable aerodynamic and compliance advantage for road racing, gran fondo, and endurance riding. Available in hooked (21mm inner width) and hookless (23mm inner width) configurations, it supports tire widths from 25c to 32c and a maximum tire pressure of 125 psi (hooked) in line with ETRTO 2023 tubeless standards.\u003c\/p\u003e\n\u003ch2\u003eKey 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\u003eWheel Size\u003c\/td\u003e\n\u003ctd\u003e700c\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Profile\u003c\/td\u003e\n\u003ctd\u003eU-shape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Depth\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width\u003c\/td\u003e\n\u003ctd\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Width\u003c\/td\u003e\n\u003ctd\u003e21mm (hooked) \/ 23mm (hookless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERD\u003c\/td\u003e\n\u003ctd\u003e540mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e6.5mm (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpoke Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e4.5mm (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e7.5mm (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNipple Angle (Front\/Rear)\u003c\/td\u003e\n\u003ctd\u003e7° \/ 5°–7° (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin \/ Max Tire Pressure\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 (264 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWeight Options\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eWeight per Rim\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e470 ± 15 g\u003c\/td\u003e\n\u003ctd\u003eTraining, durability-focused builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuper Light\u003c\/td\u003e\n\u003ctd\u003e430 ± 15 g\u003c\/td\u003e\n\u003ctd\u003eAll-round racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltra Light\u003c\/td\u003e\n\u003ctd\u003e390 ± 10 g\u003c\/td\u003e\n\u003ctd\u003eClimbing and lightweight builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtreme Light\u003c\/td\u003e\n\u003ctd\u003e370 ± 10 g\u003c\/td\u003e\n\u003ctd\u003eWeight-optimized race builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNote: Lighter grades use a reduced layup schedule. While the Extreme Light option (370 ± 10 g) offers the lowest rotating mass, the Standard grade (470 ± 15 g) provides greater impact resistance for rougher road surfaces or heavier riders approaching the 120 kg limit.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eStructural Performance Data\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForward Compressive Strength:\u003c\/strong\u003e \u0026gt;300 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLateral Torsion Resistance:\u003c\/strong\u003e \u0026gt;50 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke Hole Tension Rating:\u003c\/strong\u003e \u0026gt;280 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Equilibrium (balance):\u003c\/strong\u003e \u0026lt;3 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlatness Tolerance:\u003c\/strong\u003e \u0026lt;0.15 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoundness Tolerance:\u003c\/strong\u003e \u0026lt;0.3 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHooked vs. Hookless: Which Should You Choose?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHooked (21mm inner width):\u003c\/strong\u003e Compatible with all clincher and tubeless road tires. Recommended for riders using tires rated below ETRTO hookless certification, or for mixed-surface use where higher pressures may be needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHookless (23mm inner width):\u003c\/strong\u003e Provides a larger air volume, improved ride compliance, and aerodynamic tire-rim integration at lower pressures (recommended 72–87 psi with compatible tires). Requires ETRTO-approved hookless-compatible tires only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility \u0026amp; Build Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTubeless-ready straight from the factory — no conversion tape required on the rim bed\u003c\/li\u003e\n\u003cli\u003eCompatible with standard road hubs (100mm front \/ 130mm or 142mm rear)\u003c\/li\u003e\n\u003cli\u003eSupports both center-lock and 6-bolt disc configurations when spec'd at build\u003c\/li\u003e\n\u003cli\u003eCustom spoke, valve, and assembly hole diameters available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs a 28mm wide rim better than 25mm for aerodynamics?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, for tires 28c and wider. The 28mm outer width creates a continuous aero profile with 28–32c tires, reducing the 'light bulb' effect. For 25c tires, the aerodynamic benefit is marginal but the larger air volume still reduces rolling resistance.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eHow light should a carbon road rim be for climbing?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eFor dedicated climbing builds, rims under 400 g per rim are considered competitive. The Ultra Light (390 g) and Extreme Light (370 g) grades fall within this range. Riders prioritizing durability over pure weight should select the Standard (470 g) or Super Light (430 g) grade.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eAre hookless rims safe for road cycling?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, when used with ETRTO-certified hookless-compatible tires at the manufacturer's recommended pressure (typically 72–87 psi for road). The hookless bead design is used by major OEM wheel manufacturers and is validated under ETRTO 2023 tubeless road standards.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat tire sizes are compatible with this rim?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe 21mm hooked inner width is optimized for 25c–32c tires. The 23mm hookless inner width is best matched to 28c–35c tires for an aerodynamically flush profile.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes this rim come with a warranty?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. A three-year manufacturer's warranty covers structural defects under normal riding conditions. Warranty excludes crash damage and use outside the stated rider weight or pressure limits.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":47660347785470,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 20\/20 \/ Standard","offer_id":47660347818238,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble  Matt \/ 20\/20 \/ Standard","offer_id":47660347916542,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 20\/20 \/ Standard","offer_id":47660347949310,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Superlight","offer_id":48131784048894,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Ultralight","offer_id":48131784081662,"sku":null,"price":330.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 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Extremlight","offer_id":48131785457918,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/bola_700c_carbon_rims_8542a818-0d08-41b7-82ed-4db02bcfad5e.png?v=1780298268"},{"product_id":"bola-700c-45mm-asymmetric-carbon-tubeless-rim-28mm-wide","title":"Bola 700c 45mm Asymmetric Carbon Tubeless Rim, 28mm Wide","description":"\u003ch2\u003eBola 700c 45mm Asymmetric Carbon Tubeless Rim\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDirect answer:\u003c\/strong\u003e The Bola 700c 45mm asymmetric carbon tubeless rim is designed for competitive road cycling and endurance rides, offering advanced aerodynamics and weight options for custom wheel builds. Choose between hookless or hooked bead variants, 21mm or 23mm inner widths, and weights from 375g to 460g to optimize your performance and tire compatibility.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 700c (ISO 622)\u003c\/li\u003e\n\u003cli\u003eDepth: 45mm (U-shape asymmetric offset)\u003c\/li\u003e\n\u003cli\u003eWidth: 28mm outer \/ 21mm or 23mm inner\u003c\/li\u003e\n\u003cli\u003eWeight Options: Extreme-Light 375g, Ultra-Light 380g, Super-Light 405g, Standard 460g (± tolerances)\u003c\/li\u003e\n\u003cli\u003eBead Type: Hooked or Hookless (ETRTO compatible)\u003c\/li\u003e\n\u003cli\u003eSpoke Hole: 4.5mm diameter, for disc\/rim brake hubs\u003c\/li\u003e\n\u003cli\u003eMax Rider Weight: 100kg\u003c\/li\u003e\n\u003cli\u003eRecommended Tire Size: 25–32mm tubeless-ready (100–125 psi)\u003c\/li\u003e\n\u003cli\u003eMaterial: T700\/T800 unidirectional carbon fiber, epoxy matrix\u003c\/li\u003e\n\u003cli\u003eDynamic Balance: \u0026lt;3g deviation\u003c\/li\u003e\n\u003cli\u003eFlatness Tolerance: \u0026lt;0.15mm; Roundness: \u0026lt;0.3mm\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 years\u003c\/li\u003e\n\u003cli\u003eCertifications: ISO 622, ETRTO bead compatibility, dynamic balance and flatness tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eComparison Table\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eBola 45TR28\u003c\/th\u003e\n\u003cth\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eAsymmetric, U-shape\u003c\/td\u003e\n\u003ctd\u003eSymmetric or wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Width\u003c\/td\u003e\n\u003ctd\u003e21\/23mm\u003c\/td\u003e\n\u003ctd\u003e23-25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e375–460g\u003c\/td\u003e\n\u003ctd\u003e330–460g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBead Type\u003c\/td\u003e\n\u003ctd\u003eHooked \/ Hookless\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePuncture Risk\u003c\/td\u003e\n\u003ctd\u003eLow (tubeless ready)\u003c\/td\u003e\n\u003ctd\u003eLow (tubeless ready)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Rider Weight\u003c\/td\u003e\n\u003ctd\u003e100kg\u003c\/td\u003e\n\u003ctd\u003e90–105kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eISO 622 \/ ETRTO\u003c\/td\u003e\n\u003ctd\u003eStated or unspecified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What are the main advantages of an asymmetric rim design?\u003c\/strong\u003e\u003cbr\u003eA: Asymmetric rims balance spoke tension for increased wheel durability and reduce lateral flex in disc brake setups, compared to symmetric designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: When should I use hookless vs. hooked bead?\u003c\/strong\u003e\u003cbr\u003eA: Hookless beads support lower tire pressures and reduced weight; hooked beads allow a wider tire pressure and standard clinchers. Always verify tire compatibility for hookless use above 70psi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the Bola 45TR28 suitable for long distance or racing?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Its low weight and aerodynamic profile make it ideal for endurance, race, and high-performance urban builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How does it compare for safety at sub-400g weights?\u003c\/strong\u003e\u003cbr\u003eA: All rim weights meet ISO 622 and dynamic balance testing. 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Tubeless-ready construction supports tire pressures from 100 to 125 psi and accommodates riders up to 120 kg.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Size\u003c\/td\u003e\n\u003ctd\u003e700C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Profile\u003c\/td\u003e\n\u003ctd\u003eWave Aero (U-shape base)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRim Height\u003c\/td\u003e\n\u003ctd\u003e60mm \/ 65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width\u003c\/td\u003e\n\u003ctd\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Width\u003c\/td\u003e\n\u003ctd\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERD\u003c\/td\u003e\n\u003ctd\u003e515mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight — Normal\u003c\/td\u003e\n\u003ctd\u003e535 ±15g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight — Superlight\u003c\/td\u003e\n\u003ctd\u003e485 ±15g per rim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight — Ultralight\u003c\/td\u003e\n\u003ctd\u003e430 ±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\u003eAssembly \/ Valve Hole Dia\u003c\/td\u003e\n\u003ctd\u003e7.5mm \/ 6.5mm (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpoke Hole Dia\u003c\/td\u003e\n\u003ctd\u003e4.5mm (customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNipple Direction (Front)\u003c\/td\u003e\n\u003ctd\u003e7°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNipple Direction (Rear)\u003c\/td\u003e\n\u003ctd\u003e5° and 7° (or customized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTire 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\u003ch2\u003eWeight Tier Comparison\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eWeight per Rim\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal\u003c\/td\u003e\n\u003ctd\u003e535 ±15g\u003c\/td\u003e\n\u003ctd\u003eTraining, durability-focused builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperlight\u003c\/td\u003e\n\u003ctd\u003e485 ±15g\u003c\/td\u003e\n\u003ctd\u003eEndurance racing, balanced weight\/stiffness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltralight\u003c\/td\u003e\n\u003ctd\u003e430 ±10g\u003c\/td\u003e\n\u003ctd\u003eCriterium, climbing, weight-conscious race builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003e60mm vs 65mm Depth — Which Should You Choose?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e60mm:\u003c\/strong\u003e Lower crosswind sensitivity; suited to mixed-terrain road racing, gran fondo, and riders in variable wind conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65mm:\u003c\/strong\u003e Greater aerodynamic advantage at speeds above 40 km\/h; preferred for triathlon, time trial, and flat-course racing where crosswind risk is managed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWave Aero Profile — What It Means\u003c\/h2\u003e\u003cp\u003eThe wave aero (toroidal) rim wall creates a smoother airflow reattachment point compared to a flat-wall U-shape rim. This geometry reduces aerodynamic drag at yaw angles typically encountered during road and triathlon racing (5°–15° yaw). \u003cem\u003eNote: aerodynamic advantage is most measurable above 35–40 km\/h; at lower average speeds, weight savings from the Ultralight tier typically provide a greater performance return.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eTubeless Compatibility\u003c\/h2\u003e\u003cp\u003eThe 22mm inner width accepts tires from 25mm to 32mm in tubeless or clincher configuration. The rim bed, valve hole diameter (6.5mm, customizable), and assembly hole (7.5mm, customizable) are designed for standard tubeless valve stems and tape installation.\u003c\/p\u003e\u003ch2\u003eCustomization Options\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpoke hole diameter: standard 4.5mm or custom\u003c\/li\u003e\n\u003cli\u003eValve hole diameter: standard 6.5mm or custom\u003c\/li\u003e\n\u003cli\u003eAssembly hole diameter: standard 7.5mm or custom\u003c\/li\u003e\n\u003cli\u003eNipple angle: Front 7°; Rear 5°, 7°, or custom\u003c\/li\u003e\n\u003cli\u003eRim height: 60mm or 65mm\u003c\/li\u003e\n\u003cli\u003eWeight tier: Normal, Superlight, or Ultralight\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat is the actual weight of the ultralight version?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe Ultralight tier weighs 430 ±10g per rim (420–440g), verified per-unit at the factory before shipping.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eAre these rims tubeless-ready out of the box?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. The rim bed is tubeless-compatible. You will need tubeless tape, a valve stem, and tubeless sealant, which are not included.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs a 60mm or 65mm rim better for triathlon and time trial?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe 65mm depth offers greater aerodynamic benefit on flat, controlled courses. The 60mm depth is the more versatile choice if your event includes variable wind or slight elevation.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat tire widths are compatible with the 22mm inner width?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eETRTO guidelines recommend tires 1.4× to 2.4× the inner rim width. For a 22mm inner width, this translates to approximately 25mm–50mm tires; for road use, 25mm–32mm is the practical range.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat is the maximum rider weight?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe rim is rated for riders up to 120 kg combined system weight (rider + bike + gear).\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan spoke count and hole configuration be customized?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes. Contact Bola directly with your spoke count, lacing pattern, and nipple angle requirements before ordering.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat warranty does Bola offer?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eBola provides a three-year manufacturer's warranty covering manufacturing defects in materials and workmanship.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"700C 28mm wide tubeless carbon bike rim 60mm and 65mm wave aero dynamic shape,ultra or super light optional Bola\",\n  \"description\": \"700C Carbon Road Bike Rim — Wave Aero Profile, 60mm \u0026amp; 65mm, 28mm Wide Tubeless The Bola 700C carbon rim delivers a wave-profile aerodynamic shape in 60mm and 65mm depths with a 28mm outer width, available in three weight tiers: Normal (535 ±15g) , Superlight (485 ±15g) , and Ultralight (430 ±10g) . Tubeless-ready construction supports tire pressures from 100 to 125 psi and accommodates riders up to 120 kg. Key Specifications Specification Value Rim Size 700C Rim Profile Wave Aero (U-shape base) Rim Height 60mm \/ 65mm Outer Width 28mm Inner Width 22mm ERD 515mm Weight — Normal 535 ±15g per rim Weight — Superlight 485 ±15g per rim Weight — Ultralight 430 ±10g per rim Forward Compressive Strength \u0026gt;300 kg Lateral Torsion \u0026gt;50 kg Spoke Hole Tension \u0026gt;280 kg Dynamic Equilibrium \u0026lt;3g imbalance Flatness Tolerance \u0026lt;0.15mm Roundness Tolerance \u0026lt;0.3mm Assembly \/ Valve Hole Dia 7.5mm \/ 6.5mm (customizable) Spoke Hole Dia 4.5mm (customizable) Nipple Direction (Front) 7° Nipple Direction (Rear) 5° and 7° (or customized) Tire Pressure Range 100–125 psi Max Rider Weight 120 kg Weight Tier Comparison Tier Weight per Rim Best For Normal 535 ±15g Training, durability-focused builds Superlight 485 ±15g Endurance racing, balanced weight\/stiffness Ultralight 430 ±10g Criterium, climbing, weight-conscious race builds 60mm vs 65mm Depth — Which Should You Choose? 60mm: Lower crosswind sensitivity; suited to mixed-terrain road racing, gran fondo, and riders in variable wind conditions. 65mm: Greater aerodynamic advantage at speeds above 40 km\/h; preferred for triathlon, time trial, and flat-course racing where crosswind risk is managed. Wave Aero Profile — What It Means The wave aero (toroidal) rim wall creates a smoother airflow reattachment point compared to a flat-wall U-shape rim. This geometry reduces aerodynamic drag at yaw angles typically encountered during road and triathlon racing (5°–15° yaw). Note: aerodynamic advantage is most measurable above 35–40 km\/h; at lower average speeds, weight savings from the Ultralight tier typically provide a greater performance return. Tubeless Compatibility The 22mm inner width accepts tires from 25mm to 32mm in tubeless or clincher configuration. The rim bed, valve hole diameter (6.5mm, customizable), and assembly hole (7.5mm, customizable) are designed for standard tubeless valve stems and tape installation. Customization Options Spoke hole diameter: standard 4.5mm or custom Valve hole diameter: standard 6.5mm or custom Assembly hole diameter: standard 7.5mm or custom Nipple angle: Front 7°; Rear 5°, 7°, or custom Rim height: 60mm or 65mm Weight tier: Normal, Superlight, or Ultralight Frequently Asked Questions What is the actual weight of the ultralight version? The Ultralight tier weighs 430 ±10g per rim (420–440g), verified per-unit at the factory before shipping. Are these rims tubeless-ready out of the box? Yes. The rim bed is tubeless-compatible. You will need tubeless tape, a valve stem, and tubeless sealant, which are not included. Is a 60mm or 65mm rim better for triathlon and time trial? The 65mm depth offers greater aerodynamic benefit on flat, controlled courses. The 60mm depth is the more versatile choice if your event includes variable wind or slight elevation. What tire widths are compatible with the 22mm inner width? ETRTO guidelines recommend tires 1.4× to 2.4× the inner rim width. For a 22mm inner width, this translates to approximately 25mm–50mm tires; for road use, 25mm–32mm is the practical range. What is the maximum rider weight? The rim is rated for riders up to 120 kg combined system weight (rider + bike + gear). Can spoke count and hole configuration be customized? Yes. Contact Bola directly with your spoke count, lacing pattern, and nipple angle requirements before ordering. What warranty does Bola offer? 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