{"product_id":"29er-carbon-mtb-rim-asymmetric-27mm-internal-25mm-profile-xc-trail-bola","title":"29er Carbon MTB Rim, Asymmetric, 27mm Internal, 25mm Profile – XC\/Trail","description":"\u003ch2\u003e29er Asymmetric Carbon MTB Rim – 27mm Internal, 25mm Profile\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e This 29-inch asymmetric carbon MTB rim, made from pre-impregnated T700\/T800 carbon composite, features a 27mm internal width, 25mm profile height, and U-shape design for cross-country (XC) and trail use. Asymmetric rim construction reduces spoke tension imbalance, supporting greater wheel stiffness and spoke durability without additional weight.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRim Size: \u003cstrong\u003e29er (622mm ETRTO)\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eInternal Width: \u003cstrong\u003e27mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eProfile Height: \u003cstrong\u003e25mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eOuter Width: \u003cstrong\u003e33mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eERD: \u003cstrong\u003e589mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eWeight: \u003cstrong\u003eStandard 415g ±15g \/ Superlight 325g ±10g\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eSpoke Hole Offset: \u003cstrong\u003e3mm asymmetric\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eHookless, Tubeless Ready, ETRTO compliant\u003c\/li\u003e\n  \u003cli\u003eCompressive Strength: \u0026gt;300kg; Torsion Resistance: \u0026gt;50kg\u003c\/li\u003e\n  \u003cli\u003eMaterial: T700\/T800 Carbon Fiber\u003c\/li\u003e\n  \u003cli\u003ePressure Rating: 45–65 psi (tubeless), compatible with 2.1\"–2.4\" XC MTB tires\u003c\/li\u003e\n  \u003cli\u003eCustom drilling and finish options available (MOQ\/lead time applies)\u003c\/li\u003e\n  \u003cli\u003eCertified to ETRTO standards and tubeless-ready spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eComparison Table\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e29er Asymmetric Carbon Rim\u003c\/th\u003e\n\u003cth\u003eStandard Carbon Rim\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpoke Balance\u003c\/td\u003e\n\u003ctd\u003eAsymmetric, reduces tension imbalance\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, increased dishing stress\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (29\")\u003c\/td\u003e\n\u003ctd\u003e325g–415g\u003c\/td\u003e\n\u003ctd\u003e400g–500g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInt. Width\u003c\/td\u003e\n\u003ctd\u003e27mm\u003c\/td\u003e\n\u003ctd\u003e22–26mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse Case\u003c\/td\u003e\n\u003ctd\u003eXC, Trail, Endurance\u003c\/td\u003e\n\u003ctd\u003eGeneral XC\/Trail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ: What are the best 29er carbon rims for XC mountain biking?\u003c\/strong\u003e\u003cbr\u003eA: Rims with 25mm+ profile height, 27mm inner width, and asymmetric spoke hole design offer optimal stiffness, low weight, and longevity for XC use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ: Is a 27mm inner width carbon rim suitable for XC trail riding?\u003c\/strong\u003e\u003cbr\u003eA: Yes, 27mm supports common 2.1–2.4\" XC tires, offering balance of traction and rolling speed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ: What advantages do asymmetric carbon rims offer?\u003c\/strong\u003e\u003cbr\u003eA: Asymmetric drilling improves spoke tension balance, reducing the risk of premature spoke failure and increasing wheel lateral stiffness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ: How does price compare to similar high-performance rims?\u003c\/strong\u003e\u003cbr\u003eA: Offered at competitive cost, meeting U.S.\/E.U. market norms for small brand and OEM use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ: Does the 25mm profile work for aggressive XC?\u003c\/strong\u003e\u003cbr\u003eA: 25mm rim height balances low weight and impact strength, supporting aggressive XC\/race use. Higher profiles may benefit heavier or more aggressive riders, but with added weight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAlways verify compatibility with your hub model and intended tire size. Contact Bola Carbon for specific custom and warranty queries.\u003c\/em\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"29er Asymmetric Carbon MTB Rim – 25mm Profile, 27mm Inner Width, XC Racing\",\n  \"description\": \"29er Asymmetric Carbon MTB Rim – 27mm Internal, 25mm Profile Answer: This 29-inch asymmetric carbon MTB rim, made from pre-impregnated T700\/T800 carbon composite, features a 27mm internal width, 25mm profile height, and U-shape design for cross-country (XC) and trail use. Asymmetric rim construction reduces spoke tension imbalance, supporting greater wheel stiffness and spoke durability without additional weight. Key Features \u0026 Specifications Rim Size: 29er (622mm ETRTO) Internal Width: 27mm Profile Height: 25mm Outer Width: 33mm ERD: 589mm Weight: Standard 415g ±15g \/ Superlight 325g ±10g Spoke Hole Offset: 3mm asymmetric Hookless, Tubeless Ready, ETRTO compliant Compressive Strength: \u0026gt;300kg; Torsion Resistance: \u0026gt;50kg Material: T700\/T800 Carbon Fiber Pressure Rating: 45–65 psi (tubeless), compatible with 2.1\\\"–2.4\\\" XC MTB tires Custom drilling and finish options available (MOQ\/lead time applies) Certified to ETRTO standards and tubeless-ready spec Comparison Table Feature 29er Asymmetric Carbon Rim Standard Carbon Rim Spoke Balance Asymmetric, reduces tension imbalance Symmetrical, increased dishing stress Weight (29\\\") 325g–415g 400g–500g Int. Width 27mm 22–26mm Use Case XC, Trail, Endurance General XC\/Trail FAQs Q: What are the best 29er carbon rims for XC mountain biking? A: Rims with 25mm+ profile height, 27mm inner width, and asymmetric spoke hole design offer optimal stiffness, low weight, and longevity for XC use. Q: Is a 27mm inner width carbon rim suitable for XC trail riding? A: Yes, 27mm supports common 2.1–2.4\\\" XC tires, offering balance of traction and rolling speed. Q: What advantages do asymmetric carbon rims offer? A: Asymmetric drilling improves spoke tension balance, reducing the risk of premature spoke failure and increasing wheel lateral stiffness. Q: How does price compare to similar high-performance rims? A: Offered at competitive cost, meeting U.S.\/E.U. market norms for small brand and OEM use. Q: Does the 25mm profile work for aggressive XC? A: 25mm rim height balances low weight and impact strength, supporting aggressive XC\/race use. Higher profiles may benefit heavier or more aggressive riders, but with added weight. Always verify compatibility with your hub model and intended tire size. 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