{"product_id":"bola-exp-40r-carbon-disc-wheelset-700c-40mm-deep-28-30mm-wide-dt240s-hub-1270g","title":"Bola EXP 40R Carbon Disc Wheelset 700C – 40mm Deep, 28\/30mm Wide, DT240s Hub, 1270g, Tubeless-Ready","description":"\u003cp\u003eThe Bola EXP 40R Carbon Disc Wheelset features a 40mm deep, 28\/30mm wide T800 UD matte carbon rim and DT Swiss 240s 36T ratchet hubs, weighing 1270g. Optimized for 28–32c tubeless or clincher tires, this wheelset is engineered for both competitive road and mixed-terrain gravel use, combining reliable aerodynamics with responsive climbing performance.\u003cbr\u003eA decade of manufacturing experience ensures strict ISO 4210-7 and REACH compliance, dependable quality controls, and durable construction for professional teams, brands, and demanding individual cyclists.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Depth:\u003c\/strong\u003e 40mm\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInternal Width:\u003c\/strong\u003e 21mm or 24mm\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExternal Width:\u003c\/strong\u003e 28mm or 30mm\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T800 UD matte carbon fiber\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHub:\u003c\/strong\u003e DT Swiss 240s, 36T ratchet, Center Lock, 12x100\/12x142mm thru-axle\/QR\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1270g (excluding tape\/valves)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e Sapim CX Ray, straight-pull, 24\/24, 2-cross lacing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTire Compatibility:\u003c\/strong\u003e Tubeless \u0026amp; clincher, optimized for 28–32c\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ISO 4210-7, REACH\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eSituational Fit \u0026amp; Real-World Use\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoad \u0026amp; Gravel:\u003c\/strong\u003e 40mm depth and wide profile offer optimized balance of aerodynamic gain and crosswind stability, suitable for competitive road racing, performance gravel, and endurance cycling.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClimbing:\u003c\/strong\u003e At 1270g, this wheelset supports strong acceleration and climbing performance—comparable to elite 1170–1290g competitor wheelsets.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDT Swiss 240s Hubs:\u003c\/strong\u003e Known for power transfer efficiency and low rolling resistance, delivering reliable performance under racing loads and variable weather.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRim Width Options:\u003c\/strong\u003e 28mm\/30mm external width allows secure tire seating for 28–32c tubeless tires, supporting lower pressures and improved comfort on rough roads.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCarbon Wheel Comparison Table\u003c\/h3\u003e \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eDepth\u003c\/th\u003e\n\u003cth\u003eInternal Width\u003c\/th\u003e\n\u003cth\u003eHub Type\u003c\/th\u003e\n\u003cth\u003eTire Compatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBola EXP 40R\u003c\/td\u003e\n\u003ctd\u003e1270g\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e21\/24mm\u003c\/td\u003e\n\u003ctd\u003eDT 240s 36T\u003c\/td\u003e\n\u003ctd\u003e28–32c Tubeless\/Clincher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAERO 40 II Disc\u003c\/td\u003e\n\u003ctd\u003e1177g\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e23mm\u003c\/td\u003e\n\u003ctd\u003eD91 45T\u003c\/td\u003e\n\u003ctd\u003eTubeless Ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHUNT 40 Disc\u003c\/td\u003e\n\u003ctd\u003e~1420g\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eRatchet system\u003c\/td\u003e\n\u003ctd\u003eTubeless\/Clincher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e \u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eAre 40mm deep carbon disc wheels good for both road and gravel riding?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes, the 40mm profile balances aerodynamic speed with stability on mixed surfaces, making it suitable for both competitive road cycling and advanced gravel racing with 28–32c tires.\u003c\/p\u003e\u003c\/details\u003e \u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eHow does a 1270g 700C carbon disc wheelset compare for climbing?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eAt 1270g, the Bola EXP 40R is among the lightest, rivaling leading 1170–1300g wheelsets for fast climbing, while maintaining stiffness for efficient power transfer.\u003c\/p\u003e\u003c\/details\u003e \u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eWhat are the main benefits of DT Swiss 240s hubs?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eDT Swiss 240s hubs deliver durable, low-friction rolling and rapid 36T ratchet engagement, providing smooth, reliable power transfer on both climbs and flat terrain.\u003c\/p\u003e\u003c\/details\u003e \u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eIs a 28mm or 30mm wide wheelset better for 28–32c tubeless tires?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eBoth widths are optimal for 28–32c tubeless tires; 30mm offers extra stability and comfort for rougher gravel, while 28mm balances aerodynamics for pure road use.\u003c\/p\u003e\u003c\/details\u003e \u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eWhat’s the aerodynamic difference between 40mm and 50mm deep carbon wheelsets?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e50mm deep rims increase aerodynamic efficiency on flat or high-speed sections but may be more affected by crosswinds; 40mm offers more versatile handling with minimal aero trade-off.\u003c\/p\u003e\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Bola EXP 40R Carbon Disc Wheelset 700C – 40mm Deep, 28\/30mm Wide, DT240s Hub,1270g\",\n  \"description\": \"The Bola EXP 40R Carbon Disc Wheelset features a 40mm deep, 28\/30mm wide T800 UD matte carbon rim and DT Swiss 240s 36T ratchet hubs, weighing 1270g. Optimized for 28–32c tubeless or clincher tires, this wheelset is engineered for both competitive road and mixed-terrain gravel use, combining reliable aerodynamics with responsive climbing performance. A decade of manufacturing experience ensures strict ISO 4210-7 and REACH compliance, dependable quality controls, and durable construction for professional teams, brands, and demanding individual cyclists. Technical Specifications Rim Depth: 40mm Internal Width: 21mm or 24mm External Width: 28mm or 30mm Material: T800 UD matte carbon fiber Hub: DT Swiss 240s, 36T ratchet, Center Lock, 12x100\/12x142mm thru-axle\/QR Weight: 1270g (excluding tape\/valves) Spokes: Sapim CX Ray, straight-pull, 24\/24, 2-cross lacing Tire Compatibility: Tubeless \u0026 clincher, optimized for 28–32c Certifications: ISO 4210-7, REACH Situational Fit \u0026 Real-World Use Road \u0026 Gravel: 40mm depth and wide profile offer optimized balance of aerodynamic gain and crosswind stability, suitable for competitive road racing, performance gravel, and endurance cycling. Climbing: At 1270g, this wheelset supports strong acceleration and climbing performance—comparable to elite 1170–1290g competitor wheelsets. DT Swiss 240s Hubs: Known for power transfer efficiency and low rolling resistance, delivering reliable performance under racing loads and variable weather. Rim Width Options: 28mm\/30mm external width allows secure tire seating for 28–32c tubeless tires, supporting lower pressures and improved comfort on rough roads. Carbon Wheel Comparison Table Model Weight Depth Internal Width Hub Type Tire Compatibility Bola EXP 40R 1270g 40mm 21\/24mm DT 240s 36T 28–32c Tubeless\/Clincher AERO 40 II Disc 1177g 40mm 23mm D91 45T Tubeless Ready HUNT 40 Disc ~1420g 40mm Not specified Ratchet system Tubeless\/Clincher Frequently Asked Questions Are 40mm deep carbon disc wheels good for both road and gravel riding? Yes, the 40mm profile balances aerodynamic speed with stability on mixed surfaces, making it suitable for both competitive road cycling and advanced gravel racing with 28–32c tires. How does a 1270g 700C carbon disc wheelset compare for climbing? At 1270g, the Bola EXP 40R is among the lightest, rivaling leading 1170–1300g wheelsets for fast climbing, while maintaining stiffness for efficient power transfer. What are the main benefits of DT Swiss 240s hubs? DT Swiss 240s hubs deliver durable, low-friction rolling and rapid 36T ratchet engagement, providing smooth, reliable power transfer on both climbs and flat terrain. Is a 28mm or 30mm wide wheelset better for 28–32c tubeless tires? Both widths are optimal for 28–32c tubeless tires; 30mm offers extra stability and comfort for rougher gravel, while 28mm balances aerodynamics for pure road use. What’s the aerodynamic difference between 40mm and 50mm deep carbon wheelsets? 50mm deep rims increase aerodynamic efficiency on flat or high-speed sections but may be more affected by crosswinds; 40mm offers more versatile handling with minimal aero trade-off.\",\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\/dt240db.png?v=1780277874\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/dt240db_e9791198-f5f2-43b5-826b-6b7864a42507.png?v=1780277874\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/db240.png?v=1780277874\"\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-exp-40r-carbon-disc-wheelset-700c-40mm-deep-28-30mm-wide-dt240s-hub-1270g\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"https:\/\/bolacarbon.com\"\n    }\n  }\n}\n\u003c\/script\u003e\n\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 road and gravel riding?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the 40mm profile balances aerodynamic speed with stability on mixed surfaces, making it suitable for both competitive road cycling and advanced gravel racing with 28–32c tires.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does a 1270g 700C carbon disc wheelset compare for climbing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"At 1270g, the Bola EXP 40R is among the lightest, rivaling leading 1170–1300g wheelsets for fast climbing, while maintaining stiffness for efficient power transfer.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the main benefits of DT Swiss 240s hubs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"DT Swiss 240s hubs deliver durable, low-friction rolling and rapid 36T ratchet engagement, providing smooth, reliable power transfer on both climbs and flat terrain.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is a 28mm or 30mm wide wheelset better for 28–32c tubeless tires?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both widths are optimal for 28–32c tubeless tires; 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