{"product_id":"bola-exp-40t-dt-swiss-240s-sapim-cx-ray-tubular-carbon-road-wheels-40mm-rim-brake-25-28mm-1170g","title":"Bola EXP 40T Carbon Tubular Wheelset 40mm Rim Brake DT Swiss 240S | 25\/28mm","description":"\u003cp\u003eEngineered for competitive road cycling and club-level racing, the Bola EXP 40T Carbon Tubular Wheelset delivers a 40mm aero profile, 1170g ±20g system weight, and premium DT Swiss 240S hubs for optimal climbing responsiveness and rim brake efficiency. Available in 25mm and 28mm widths to suit 23–30c tubular tires, this set combines T700\/T800 unidirectional matte carbon durability with Sapim CX Ray aero spokes—proven to withstand riders up to 100kg.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRim Type \u0026amp; Depth:\u003c\/strong\u003e Tubular, 40mm deep, external widths 25 or 28mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T700\/T800 UD matte carbon fiber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrake Surface:\u003c\/strong\u003e Basalt-reinforced rim brake\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHubs:\u003c\/strong\u003e DT Swiss 240S, straight-pull, 20f\/24r\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e Sapim CX Ray, high-tensile aero stainless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 1170g ±20g (wheelset only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRider Weight Limit:\u003c\/strong\u003e 100kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e EN 14781 compliant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Racing, endurance, advanced club rides\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUse-Cases \u0026amp; Real-World Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClimbing:\u003c\/strong\u003e 1170g low rotational mass enhances climbing performance over heavier deep-section wheels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDaily Road Cycling:\u003c\/strong\u003e Balanced 40mm depth improves handling in crosswinds and offers aero advantage on flats without excess bulk.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability for Heavier Riders:\u003c\/strong\u003e Sapim CX Ray spokes and reinforced layup tested for up to 100kg rider weight; regular spoke inspections recommended for continued reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrake Surface:\u003c\/strong\u003e Basalt provides improved heat resistance and modulation compared to standard carbon surfaces, with reduced wear under rim-brake loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eComparison Table\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eBola EXP 40T\u003c\/th\u003e\n\u003cth\u003eDT Swiss 1800 SPLINE 23\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRim Depth\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e23mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWidth Options\u003c\/td\u003e\n\u003ctd\u003e25\/28mm\u003c\/td\u003e\n\u003ctd\u003e23mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight (pair)\u003c\/td\u003e\n\u003ctd\u003e1170g\u003c\/td\u003e\n\u003ctd\u003eApprox. 1675g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHub\u003c\/td\u003e\n\u003ctd\u003eDT Swiss 240S\u003c\/td\u003e\n\u003ctd\u003eDT Swiss Ratchet LN\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTubular\/Tubeless\u003c\/td\u003e\n\u003ctd\u003eTubular only\u003c\/td\u003e\n\u003ctd\u003eTubeless ready\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eAre 40mm deep carbon tubular wheels good for climbing and everyday road cycling?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes, 40mm carbon tubular wheels like the Bola EXP 40T offer a balance of aerodynamic benefit and climbing efficiency. The 1170g system weight is notably lighter than most carbon clincher wheels in this depth range, improving acceleration and responsiveness on climbs and flat terrain.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eHow do DT Swiss 240S hub wheelsets compare to other lightweight carbon wheelsets?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eDT Swiss 240S hubs are renowned for smooth rolling efficiency and low maintenance, using a star ratchet system for reliable engagement. Compared to standard hubs, they improve long-term durability and serviceability, and are often chosen by pro-level riders for high-performance builds.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eWhat's the difference between 25mm and 28mm wide tubular carbon wheels for road bikes?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e25mm rims are ideal for 23–25c tubular tires, commonly used in racing for minimized rolling resistance. 28mm rims fit 25–30c tubular tires, providing a wider base for improved comfort, grip, and aerodynamics—especially for heavier riders or endurance events. Always confirm frame clearance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eIs a 1170g wheelset with Sapim CX Ray spokes durable enough for riders over 90kg?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe Bola EXP 40T is tested for up to 100kg rider weight, with Sapim CX Ray spokes known for high fatigue life and impact resistance. For riding above 90kg, regular inspections of spoke tension and condition are advised for optimal performance and longevity.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open\u003e\u003csummary\u003e\u003cstrong\u003eWhat are the pros and cons of basalt rim brake surfaces on carbon bicycle wheels?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eBasalt enhances heat dissipation, improving braking consistency and reducing wear compared to standard carbon brake tracks. However, prolonged braking under wet or extremely high-speed conditions still requires careful modulation for best results.\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 40T DT Swiss 240S Sapim CX Ray Tubular Carbon Road Wheels – 40mm Rim Brake, 25\/28mm, 1170g\",\n  \"description\": \"Engineered for competitive road cycling and club-level racing, the Bola EXP 40T Carbon Tubular Wheelset delivers a 40mm aero profile, 1170g ±20g system weight, and premium DT Swiss 240S hubs for optimal climbing responsiveness and rim brake efficiency. Available in 25mm and 28mm widths to suit 23–30c tubular tires, this set combines T700\/T800 unidirectional matte carbon durability with Sapim CX Ray aero spokes—proven to withstand riders up to 100kg. Technical Specifications Rim Type \u0026 Depth: Tubular, 40mm deep, external widths 25 or 28mm Material: T700\/T800 UD matte carbon fiber Brake Surface: Basalt-reinforced rim brake Hubs: DT Swiss 240S, straight-pull, 20f\/24r Spokes: Sapim CX Ray, high-tensile aero stainless Total Weight: 1170g ±20g (wheelset only) Rider Weight Limit: 100kg Country of Origin: China Certification: EN 14781 compliant Warranty: 2 years Use: Racing, endurance, advanced club rides Use-Cases \u0026 Real-World Performance Climbing: 1170g low rotational mass enhances climbing performance over heavier deep-section wheels. Daily Road Cycling: Balanced 40mm depth improves handling in crosswinds and offers aero advantage on flats without excess bulk. Durability for Heavier Riders: Sapim CX Ray spokes and reinforced layup tested for up to 100kg rider weight; regular spoke inspections recommended for continued reliability. Brake Surface: Basalt provides improved heat resistance and modulation compared to standard carbon surfaces, with reduced wear under rim-brake loads. Comparison Table Spec Bola EXP 40T DT Swiss 1800 SPLINE 23 Rim Depth 40mm 23mm Width Options 25\/28mm 23mm Weight (pair) 1170g Approx. 1675g Hub DT Swiss 240S DT Swiss Ratchet LN Tubular\/Tubeless Tubular only Tubeless ready Frequently Asked Questions Are 40mm deep carbon tubular wheels good for climbing and everyday road cycling? Yes, 40mm carbon tubular wheels like the Bola EXP 40T offer a balance of aerodynamic benefit and climbing efficiency. The 1170g system weight is notably lighter than most carbon clincher wheels in this depth range, improving acceleration and responsiveness on climbs and flat terrain. How do DT Swiss 240S hub wheelsets compare to other lightweight carbon wheelsets? DT Swiss 240S hubs are renowned for smooth rolling efficiency and low maintenance, using a star ratchet system for reliable engagement. Compared to standard hubs, they improve long-term durability and serviceability, and are often chosen by pro-level riders for high-performance builds. What's the difference between 25mm and 28mm wide tubular carbon wheels for road bikes? 25mm rims are ideal for 23–25c tubular tires, commonly used in racing for minimized rolling resistance. 28mm rims fit 25–30c tubular tires, providing a wider base for improved comfort, grip, and aerodynamics—especially for heavier riders or endurance events. Always confirm frame clearance. Is a 1170g wheelset with Sapim CX Ray spokes durable enough for riders over 90kg? The Bola EXP 40T is tested for up to 100kg rider weight, with Sapim CX Ray spokes known for high fatigue life and impact resistance. For riding above 90kg, regular inspections of spoke tension and condition are advised for optimal performance and longevity. What are the pros and cons of basalt rim brake surfaces on carbon bicycle wheels? Basalt enhances heat dissipation, improving braking consistency and reducing wear compared to standard carbon brake tracks. 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