{"product_id":"bola-pro-40r-carbon-disc-wheelset-700c-40mm-deep-28-30mm-wide-tubeless-foil-carbon-spokes-ceramic-hub","title":"Bola PRO 40R Carbon Disc Wheelset 700C – 40mm Deep, 28\/30mm Wide, Tubeless, Foil Carbon Spokes,Ceramic Hub","description":"\u003cp\u003eThe Bola PRO 40R Carbon Disc Wheelset delivers a sub-1200g weight, optimized 40mm rim depth, and robust 28\/30mm external width for high-performance road, gravel, and endurance cycling. Tubeless-ready T800 UD carbon, foil carbon spokes, and ceramic 54T ratchet hub balance lightweight design with sustained stiffness and precise handling. ISO 4210-7 certification ensures tested reliability, with real-world compatibility for 28c–32c tires, 12x100\/12x142mm thru-axles, and Center Lock disc brakes.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Depth:\u003c\/strong\u003e 40mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Width:\u003c\/strong\u003e 21mm or 24mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Width:\u003c\/strong\u003e 28mm or 30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1170g (without tape\/valves)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T800 UD matte carbon fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e Foil carbon, straight-pull, 2-cross, 20\/20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub:\u003c\/strong\u003e Aluminum BL240, ceramic bearings, 54T ratchet, Center Lock, 12x100\/12x142mm thru-axle\/QR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e ISO 4210-7, REACH compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTire Compatibility:\u003c\/strong\u003e Tubeless and clincher, optimized for 28–32c\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWheelset Comparison Table\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eBola PRO 40R\u003c\/th\u003e\n\u003cth\u003eCommon 40mm Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e35–50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Width\u003c\/td\u003e\n\u003ctd\u003e28\/30mm\u003c\/td\u003e\n\u003ctd\u003e25–30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1170g\u003c\/td\u003e\n\u003ctd\u003e1150–1280g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpokes\u003c\/td\u003e\n\u003ctd\u003eFoil carbon\u003c\/td\u003e\n\u003ctd\u003eSteel\/Carbon (varies)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub\u003c\/td\u003e\n\u003ctd\u003eCeramic, 54T\u003c\/td\u003e\n\u003ctd\u003e36–54T, steel\/ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eISO 4210-7\u003c\/td\u003e\n\u003ctd\u003eMost: None\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSituational Fit \u0026amp; Real-World Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for road, endurance, and gravel use—28mm or 30mm width fits 28c\/32c tires (tubeless and clincher).\u003c\/li\u003e\n\u003cli\u003eRace-ready aero benefits without harsh ride—40mm depth tested for stable crosswind handling.\u003c\/li\u003e\n\u003cli\u003eFoil carbon spokes provide stiffness and energy transfer, with lower rotational weight than comparable steel-laced wheels.\u003c\/li\u003e\n\u003cli\u003eCeramic bearings yield smoother and more durable rolling compared to standard hubs; noted in long-term reviews for reliability.\u003c\/li\u003e\n\u003cli\u003eWhile carbon spokes require replacement with matching parts, they offer better aerodynamic and fatigue properties than steel in racing scenarios.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails open=\"\" class=\"gfai-product-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eAre 40mm deep carbon disc wheels good for both gravel and road cycling?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. The Bola PRO 40R's 40mm depth and 28–30mm rim width are selected for versatility across both fast road and competitive gravel riding, providing aerodynamic efficiency and confidence with 28–32c tires.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" class=\"gfai-product-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHow does a 1170g carbon wheelset with ceramic bearings compare to similar options?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThis wheelset matches the lightest competitors at the 40mm depth but adds ISO 4210-7 certification and ceramic hub durability not always found in similar priced sets.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" class=\"gfai-product-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWill 28mm or 30mm external width rims fit 28c and 32c tubeless tires?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, both rim sizes are optimized for modern 28–32c tubeless tires, supporting safe inflation and tire security per ETRTO standards.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs a foil carbon spoke wheelset more durable and responsive than steel-spoked wheels for racing?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eFoil carbon spokes offer improved lateral stiffness and weight reduction over steel, with caveat of proprietary servicing. For racing, this means more direct power transfer and consistent performance under sprint loads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat are the real-world benefits of upgrading to a lightweight 40mm tubeless carbon wheelset?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eImproved acceleration, sustained speed, and reduced rolling resistance are the primary gains. 40mm carbon rims also moderate crosswind handling and minimize fatigue compared to heavier, deeper wheels without aerodynamic compromise.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Bola PRO 40R Carbon Disc Wheelset – 700C, 40mm High, 28\/30mm Wide, Tubeless, Flat Carbon Spokes, 1170g\",\n  \"description\": \"The Bola PRO 40R Carbon Disc Wheelset delivers a sub-1200g weight, optimized 40mm rim depth, and robust 28\/30mm external width for high-performance road, gravel, and endurance cycling. Tubeless-ready T800 UD carbon, flat carbon spokes, and ceramic 54T ratchet hub balance lightweight design with sustained stiffness and precise handling. ISO 4210-7 certification ensures tested reliability, with real-world compatibility for 28c–32c tires, 12x100\/12x142mm thru-axles, and Center Lock disc brakes. Technical Specifications Rim Depth: 40mm Internal Width: 21mm or 24mm External Width: 28mm or 30mm Weight: 1170g (without tape\/valves) Material: T800 UD matte carbon fiber Spokes: Flat carbon, straight-pull, 2-cross, 20\/20 Hub: Aluminum BL200, ceramic bearings, 54T ratchet, Center Lock, 12x100\/12x142mm thru-axle\/QR Certification: ISO 4210-7, REACH compliant Tire Compatibility: Tubeless and clincher, optimized for 28–32c Wheelset Comparison Table Specification Bola PRO 40R Common 40mm Competitor Depth 40mm 35–50mm External Width 28\/30mm 25–30mm Weight 1170g 1150–1280g Spokes Flat carbon Steel\/Carbon (varies) Hub Ceramic, 54T 36–54T, steel\/ceramic Certification ISO 4210-7 Most: None Situational Fit \u0026 Real-World Use Suitable for road, endurance, and gravel use—28mm or 30mm width fits 28c\/32c tires (tubeless and clincher). Race-ready aero benefits without harsh ride—40mm depth tested for stable crosswind handling. Flat carbon spokes provide stiffness and energy transfer, with lower rotational weight than comparable steel-laced wheels. Ceramic bearings yield smoother and more durable rolling compared to standard hubs; noted in long-term reviews for reliability. While carbon spokes require replacement with matching parts, they offer better aerodynamic and fatigue properties than steel in racing scenarios. Frequently Asked Questions Are 40mm deep carbon disc wheels good for both gravel and road cycling? Yes. The Bola PRO 40R's 40mm depth and 28–30mm rim width are selected for versatility across both fast road and competitive gravel riding, providing aerodynamic efficiency and confidence with 28–32c tires. How does a 1170g carbon wheelset with ceramic bearings compare to similar options? This wheelset matches the lightest competitors at the 40mm depth but adds ISO 4210-7 certification and ceramic hub durability not always found in similar priced sets. Will 28mm or 30mm external width rims fit 28c and 32c tubeless tires? Yes, both rim sizes are optimized for modern 28–32c tubeless tires, supporting safe inflation and tire security per ETRTO standards. Is a flat carbon spoke wheelset more durable and responsive than steel-spoked wheels for racing? Flat carbon spokes offer improved lateral stiffness and weight reduction over steel, with caveat of proprietary servicing. For racing, this means more direct power transfer and consistent performance under sprint loads. What are the real-world benefits of upgrading to a lightweight 40mm tubeless carbon wheelset? Improved acceleration, sustained speed, and reduced rolling resistance are the primary gains. 40mm carbon rims also moderate crosswind handling and minimize fatigue compared to heavier, deeper wheels without aerodynamic compromise.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Carbon Fiber Sporting Goods\"\n  },\n  \"category\": \"Carbon Road \u0026 Gravel Disc Wheelsets\",\n  \"image\": [\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/blackaerocswheelset.png?v=1779958564\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/whiteaerocswheels.png?v=1779958564\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/flat_cs.png?v=1779958585\"\n  ],\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"availability\": \"https:\/\/schema.org\/OutOfStock\",\n    \"price\": \"999.00\",\n    \"priceCurrency\": \"USD\",\n    \"url\": \"https:\/\/bolacarbon.com\/products\/bola-pro-40r-carbon-disc-road-wheelset-700c-40mm-deep-28-30mm-width-tubeless-flat-carbon-spokes-1170g\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"https:\/\/bolacarbon.com\"\n    }\n  }\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are 40mm deep carbon disc wheels good for both gravel and road cycling?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Bola PRO 40R's 40mm depth and 28–30mm rim width are selected for versatility across both fast road and competitive gravel riding, providing aerodynamic efficiency and confidence with 28–32c tires.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does a 1170g carbon wheelset with ceramic bearings compare to similar options?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This wheelset matches the lightest competitors at the 40mm depth but adds ISO 4210-7 certification and ceramic hub durability not always found in similar priced sets.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will 28mm or 30mm external width rims fit 28c and 32c tubeless tires?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, both rim sizes are optimized for modern 28–32c tubeless tires, supporting safe inflation and tire security per ETRTO standards.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is a flat carbon spoke wheelset more durable and responsive than steel-spoked wheels for racing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Flat carbon spokes offer improved lateral stiffness and weight reduction over steel, with caveat of proprietary servicing. For racing, this means more direct power transfer and consistent performance under sprint loads.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the real-world benefits of upgrading to a lightweight 40mm tubeless carbon wheelset?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Improved acceleration, sustained speed, and reduced rolling resistance are the primary gains. 40mm carbon rims also moderate crosswind handling and minimize fatigue compared to heavier, deeper wheels without aerodynamic compromise.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"30\/24mm \/ Shimano HG \/ Black Bola","offer_id":48278499393790,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Shimano HG \/ White Bola","offer_id":48278499426558,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Shimano HG \/ Customized","offer_id":48278499459326,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Sram  XDR \/ Black Bola","offer_id":48278499492094,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Sram  XDR \/ White Bola","offer_id":48278499524862,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Sram  XDR \/ Customized","offer_id":48278499557630,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Compy \/ Black Bola","offer_id":48278499590398,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Compy \/ White Bola","offer_id":48278499623166,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"30\/24mm \/ Compy \/ Customized","offer_id":48278499655934,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Shimano HG \/ Black Bola","offer_id":48278499688702,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Shimano HG \/ White Bola","offer_id":48278499721470,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Shimano HG \/ Customized","offer_id":48278499754238,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Sram  XDR \/ Black Bola","offer_id":48278499787006,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Sram  XDR \/ White Bola","offer_id":48278499819774,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Sram  XDR \/ Customized","offer_id":48278499852542,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Compy \/ Black Bola","offer_id":48278499885310,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Compy \/ White Bola","offer_id":48278499918078,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"28\/21mm \/ Compy \/ Customized","offer_id":48278499950846,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/blackaerocswheelset.png?v=1780298507","url":"https:\/\/bolacarbon.com\/es\/products\/bola-pro-40r-carbon-disc-wheelset-700c-40mm-deep-28-30mm-wide-tubeless-foil-carbon-spokes-ceramic-hub","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}