{"title":"700C 32mm","description":"\u003cp\u003e\u003cstrong\u003e700C 38mm Carbon Rims—Engineered for All-Road Versatility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Bola 700C 38mm carbon rim is built for cyclists who demand performance across diverse terrains. With a 38mm rim depth and a wide 32mm internal width, this rim enables true multi-scenario compatibility—from fast-paced road riding to demanding gravel exploration. Riders can confidently mount 40c+ gravel tires for enhanced traction and control on loose trails, muddy paths, or rocky surfaces, capitalizing on the rim’s optimized profile for mountain bike-level stability. For the tarmac, pair it with 28c–32c road tires to unlock aerodynamic efficiency and comfort, all while benefiting from superior crosswind stability on technical descents.\u003c\/p\u003e\n\u003cp\u003eManufactured using premium Toray carbon fiber and subject to rigorous QC standards, this rim balances lightness, structural stiffness, and reliable durability—delivering the confidence needed for long-distance events, adventure rides, and competitive racing. The tubeless-ready design provides flexibility in tire setup and lowers puncture risk, while the robust rim construction meets the demands of both high-power riders and lightweight modifiers. Backed by Bola’s global 2-year official warranty, our 700C 38mm rim supports amateur cyclists, passionate explorers, and B2B partners seeking cost-effective, high-quality carbon upgrades for modern bikes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Toray carbon fiber\u003c\/li\u003e\n\u003cli\u003eInternal width: 32mm\u003c\/li\u003e\n\u003cli\u003eRim depth: 38mm\u003c\/li\u003e\n\u003cli\u003eCompatibility: 700C tires, tubeless \u0026amp; clincher\u003c\/li\u003e\n\u003cli\u003eUse cases: Gravel, all-road, endurance, road cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- GFAI:COLLECTION_AUDIT_START v1 --\u003e\n\u003cdetails class=\"gfai-semantic-cluster\"\u003e\n  \u003csummary\u003eExplore our 700C 38mm Buying Guide\u003c\/summary\u003e\n  \u003csection\u003e\n    \u003ch3\u003e700C 38mm Carbon Rim\u003c\/h3\u003e\n    \u003cdl\u003e\n      \u003cdt\u003eInternal Width\u003c\/dt\u003e\n      \u003cdd\u003e32mm\u003c\/dd\u003e\n      \u003cdt\u003eRim Depth\u003c\/dt\u003e\n      \u003cdd\u003e38mm\u003c\/dd\u003e\n      \u003cdt\u003eMaterial\u003c\/dt\u003e\n      \u003cdd\u003eToray carbon fiber\u003c\/dd\u003e\n      \u003cdt\u003eTire Compatibility\u003c\/dt\u003e\n      \u003cdd\u003e28c–32c road tires · 40c+ gravel tires · Tubeless · Clincher\u003c\/dd\u003e\n      \u003cdt\u003eBrake Compatibility\u003c\/dt\u003e\n      \u003cdd\u003eDisc brake · Rim brake (variant specific)\u003c\/dd\u003e\n      \u003cdt\u003eUse Case\u003c\/dt\u003e\n      \u003cdd\u003eGravel · All-road · Road cycling · Endurance · Adventure\u003c\/dd\u003e\n      \u003cdt\u003eKey Features\u003c\/dt\u003e\n      \u003cdd\u003eLightweight construction · Aerodynamic 38mm profile · Enhanced crosswind stability · Rigorous QC and warranty\u003c\/dd\u003e\n    \u003c\/dl\u003e\n  \u003c\/section\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-collection-faq\"\u003e\n  \u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\n  \u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat are the best carbon rims for gravel and all-road riding with wide tire compatibility?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003eCarbon rims with at least 32mm internal width and robust construction—like Bola’s 700C 38mm Toray carbon rim—offer secure support for wide gravel tires (40c+). This ensures traction and stability on rough terrain while maintaining lightweight performance for road stretches.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eHow do 700C 38mm rims compare to other rim sizes for mixed terrain cycling?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003e700C 38mm rims balance aerodynamics, weight, and stability. Compared to deeper rims, they offer better crosswind handling and greater versatility on gravel and all-road terrain, while still delivering aero benefits over shallower profiles.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhich type of rim is best for stability and speed on both gravel trails and paved roads?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003eA mid-depth (38mm) carbon rim with a wide internal width (32mm) provides rider stability on loose or uneven gravel as well as aerodynamic advantages and speed for road segments—making it an ideal dual-purpose upgrade.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eAre 700C 38mm rims suitable for running both wide gravel tires and narrower road tires?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003eYes. The 32mm internal width supports a broad range—securely fitting 28c–32c road tires for speed or 40c+ gravel tires for off-road control. This lets riders adapt tire choices to their preferred terrain.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat should I look for when choosing rims for crosswind stability during fast descents?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003eAero profiles in the 38mm depth combined with a wider rim platform (like Bola's 32mm internal width) reduce crosswind sensitivity. Carbon fiber construction keeps weight low, enhancing control and rider confidence on descents.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What are the best carbon rims for gravel and all-road riding with wide tire compatibility?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Carbon rims with at least 32mm internal width and robust construction—like Bola’s 700C 38mm Toray carbon rim—offer secure support for wide gravel tires (40c+). This ensures traction and stability on rough terrain while maintaining lightweight performance for road stretches.\"}},{\"@type\":\"Question\",\"name\":\"How do 700C 38mm rims compare to other rim sizes for mixed terrain cycling?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"700C 38mm rims balance aerodynamics, weight, and stability. Compared to deeper rims, they offer better crosswind handling and greater versatility on gravel and all-road terrain, while still delivering aero benefits over shallower profiles.\"}},{\"@type\":\"Question\",\"name\":\"Which type of rim is best for stability and speed on both gravel trails and paved roads?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A mid-depth (38mm) carbon rim with a wide internal width (32mm) provides rider stability on loose or uneven gravel as well as aerodynamic advantages and speed for road segments—making it an ideal dual-purpose upgrade.\"}},{\"@type\":\"Question\",\"name\":\"Are 700C 38mm rims suitable for running both wide gravel tires and narrower road tires?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The 32mm internal width supports a broad range—securely fitting 28c–32c road tires for speed or 40c+ gravel tires for off-road control. This lets riders adapt tire choices to their preferred terrain.\"}},{\"@type\":\"Question\",\"name\":\"What should I look for when choosing rims for crosswind stability during fast descents?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Aero profiles in the 38mm depth combined with a wider rim platform (like Bola's 32mm internal width) reduce crosswind sensitivity. Carbon fiber construction keeps weight low, enhancing control and rider confidence on descents.\"}}]}\u003c\/script\u003e\n\u003c!-- GFAI:COLLECTION_AUDIT_END --\u003e","products":[{"product_id":"bola-700c-tubeless-carbon-road-rim-38mm-outer-32mm-inner-45mm-offset-profile-副本-副本","title":"Bola 700C Tubeless Carbon Road Rim — 38mm Outer \/ 32mm Inner \/ 45mm Offset Profile（副本）（副本）","description":"\u003cp\u003eTake a modern approach to fast, comfortable road and gravel riding with the Bola 700C tubeless-ready carbon rim. Its 45mm profile and 38mm outer \/ 32mm inner width are optimised for contemporary 37–52mm tyres, delivering aerodynamic gains while supporting lower tyre pressures for improved comfort and traction. Available in four weight tiers, the rim lets you prioritise durability or weight savings depending on your build and riding style.\u003c\/p\u003e\n\u003ch2\u003eBola 700C Tubeless Carbon Road Rim - Designed for road and gravel wheel builds\u003c\/h2\u003e\n\u003cp\u003eThe asymmetric (offset) bed shifts the spoke anchor 2–3mm toward the drive side to equalise spoke tension on rear wheels, improving long-term durability and lateral stiffness when paired with modern 11- or 12-speed drivetrains. Tubeless-ready sealing and a 32mm inner width accommodate recommended tyre sizes while enabling lower pressures for better vibration damping and confidence over rough pavement.\u003c\/p\u003e\n\u003cp\u003eRiding with these rims tends to feel composed: the wider tyre support reduces sidewall deformation and permits tyre pressures up 90 psi range while still improving comfort when using 37–52mm tyres. Riders seeking a climbing advantage can choose lighter layups, while heavier riders or rough-road users can select more robust schemes.\u003c\/p\u003e\n\u003ch3\u003eWhy it fits your routine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised for modern tyre sizes:\u003c\/strong\u003e 32mm inner width supports 37–52mm road tubeless tyres for a balanced tyre-to-rim ratio and reduced rolling discomfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerodynamic and stiff:\u003c\/strong\u003e 45mm profile height provides aerodynamic benefit with lateral stiffness suited to spirited road riding and mixed-surface endurance rides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOffset\/asymmetric design:\u003c\/strong\u003e Equalises spoke tension on rear wheels to lower spoke fatigue risk and enhance wheel longevity when using multi-speed drivetrains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless-ready construction:\u003c\/strong\u003e Sealed rim bed compatible with standard tubeless tape and valves; minimum recommended tyre width 28mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight tier options:\u003c\/strong\u003e Choose Normal (470±15g), Superlight (445±15g), Ultralight (410±10g), or Extreme Light (390±10g) to match durability needs or climbing priorities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength and tolerance data:\u003c\/strong\u003e Forward compressive strength \u0026gt;300kg, lateral torsion resistance \u0026gt;50kg, spoke hole tension \u0026gt;280kg; flatness \u0026lt;0.15mm, roundness \u0026lt;0.3mm, dynamic balance \u0026lt;3g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRide-ready limits:\u003c\/strong\u003e Maximum rider weight 110kg and recommended tyre pressure up 90 psi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomisation available:\u003c\/strong\u003e Spoke hole count, valve hole (6.5mm standard), assembly hole, and nipple direction are configurable for builder preference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWeight trade-offs are explicit: lighter layups save 60–80g per rim versus the Normal scheme but reduce layup margin; riders over ~90kg or those regularly on poor surfaces are advised toward Superlight or Normal options. The rim’s ERD is 548mm and standard spoke and assembly hole diameters are 4.5mm and 7.5mm respectively, each available to customise for specific builds.\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 24\/24 \/ Standard","offer_id":48773579669758,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Superlight","offer_id":48773579702526,"sku":null,"price":350.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Ultralight","offer_id":48773579735294,"sku":null,"price":360.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Extremelight","offer_id":48773579768062,"sku":null,"price":370.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":48773579800830,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ 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