{"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\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\n\u003ch3\u003eComparison Table\u003c\/h3\u003e\n\u003ctable\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\/table\u003e\n\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. Extreme-Light (375g) is best for riders ≤85kg and smooth surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What tire sizes and pressures are supported?\u003c\/strong\u003e\u003cbr\u003eA: Designed for 25–32mm tubeless tires, up to 125psi (hooked) or 100psi (hookless as per ETRTO guidelines).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Bola 700c 45mm Asymmetric Carbon Tubeless Road Rim – 28mm Wide, Hook or Hookless, 375–460g\",\n  \"description\": \"Bola 700c 45mm Asymmetric Carbon Tubeless Rim Direct answer: 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. Key Features Size: 700c (ISO 622) Depth: 45mm (U-shape asymmetric offset) Width: 28mm outer \/ 21mm or 23mm inner Weight Options: Extreme-Light 375g, Ultra-Light 380g, Super-Light 405g, Standard 460g (± tolerances) Bead Type: Hooked or Hookless (ETRTO compatible) Spoke Hole: 4.5mm diameter, for disc\/rim brake hubs Max Rider Weight: 100kg Recommended Tire Size: 25–32mm tubeless-ready (100–125 psi) Material: T700\/T800 unidirectional carbon fiber, epoxy matrix Dynamic Balance: Flatness Tolerance: Warranty: 3 years Certifications: ISO 622, ETRTO bead compatibility, dynamic balance and flatness tested Comparison Table Parameter Bola 45TR28 Typical Competitor Profile Asymmetric, U-shape Symmetric or wave Inner Width 21\/23mm 23-25mm Weight 375–460g 330–460g Bead Type Hooked \/ Hookless Varies Puncture Risk Low (tubeless ready) Low (tubeless ready) Max Rider Weight 100kg 90–105kg Certifications ISO 622 \/ ETRTO Stated or unspecified FAQs Q: What are the main advantages of an asymmetric rim design? A: Asymmetric rims balance spoke tension for increased wheel durability and reduce lateral flex in disc brake setups, compared to symmetric designs. Q: When should I use hookless vs. hooked bead? A: 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. Q: Is the Bola 45TR28 suitable for long distance or racing? A: Yes. Its low weight and aerodynamic profile make it ideal for endurance, race, and high-performance urban builds. Q: How does it compare for safety at sub-400g weights? A: All rim weights meet ISO 622 and dynamic balance testing. Extreme-Light (375g) is best for riders ≤85kg and smooth surfaces. Q: What tire sizes and pressures are supported? 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