{"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 Wide","description":"\u003cp\u003eThe Bola EXP 40T Carbon Tubular Wheelset offers a 40mm aero rim depth, lightweight 1170g ±20g system weight, and durable DT Swiss 240S straight-pull hubs—engineered for responsive climbing and reliable rim brake performance in competitive road cycling. Riders can choose between 25mm or 28mm external rim widths for aerodynamic or comfort-focused setups. Built with T700\/T800 unidirectional matte carbon and Sapim CX Ray high-tensile aero spokes, the wheelset supports riders up to 100kg. Certified to EN 14781 for quality and safety.\u003c\/p\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003ePremium 40mm Tubular Carbon Road Wheels for Peak Performance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Type:\u003c\/strong\u003e Tubular, 40mm deep, external widths: 25mm or 28mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T700\/T800 unidirectional matte carbon fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Surface:\u003c\/strong\u003e Basalt-reinforced rim brake track for heat resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHubs:\u003c\/strong\u003e DT Swiss 240S, straight-pull, 20 front \/ 24 rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e Sapim CX Ray stainless, aero profile\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 1170g ±20g (pair, wheelset only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Rider Weight Limit:\u003c\/strong\u003e Up to 100kg\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, manufacturer support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\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\n\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\u003eRim Width Options\u003c\/td\u003e\n\u003ctd\u003e25\/28mm (external)\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 ±20g\u003c\/td\u003e\n\u003ctd\u003eApprox. 1675g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub Model\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\u003eBraking\u003c\/td\u003e\n\u003ctd\u003eRim brake (basalt)\u003c\/td\u003e\n\u003ctd\u003eDisc brake only\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\u003ch2\u003eUse-Cases \u0026amp; Real-World Performance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimbing:\u003c\/strong\u003e Sub-1200g rotational mass optimizes acceleration and climbing compared to heavier mid-depth wheels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEveryday Road Cycling:\u003c\/strong\u003e 40mm rim depth provides a balance of aero gains and stability in variable crosswinds; suitable for flat and rolling terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRider Weight \u0026amp; Durability:\u003c\/strong\u003e Sapim CX Ray spokes and reinforced carbon layup deliver reliable long-term strength for riders up to 100kg (industry standard for comparable wheelsets).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBraking Consistency:\u003c\/strong\u003e Basalt brake surface enhances heat dissipation and wear resistance but still requires careful modulation in prolonged descents or wet conditions (a known tradeoff of carbon braking surfaces vs. alloy).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eAre 40mm deep carbon tubular wheels good for climbing and everyday road cycling?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e40mm deep carbon tubular wheels, such as the Bola EXP 40T, offer a practical combination of aerodynamic benefit for flats and stability, with manageable weight (1170g) for climbing—making them versatile for both racing and daily rides.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHow do DT Swiss 240S hub wheelsets compare to other lightweight carbon wheelsets?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eDT Swiss 240S hubs use a star ratchet system and precision bearings, providing proven long-term reliability and low maintenance, commonly selected for race-grade and pro-level builds.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's the difference between 25mm and 28mm wide tubular carbon wheels for road bikes?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e25mm rims best match 23–25c tubular tires for low rolling resistance and racing, while 28mm rims fit 25–30c tubulars, offering extra comfort, grip, and improved aero for broader tires—especially relevant for heavier riders or endurance cycling. Confirm frame clearance before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs a 1170g wheelset with Sapim CX Ray spokes durable enough for riders over 90kg?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe Bola EXP 40T is tested up to 100kg rider weight; Sapim CX Ray spokes are known for high fatigue life and strength. Riders above 90kg should check spoke tension periodically to maintain optimal reliability.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat are the pros and cons of basalt rim brake surfaces on carbon bicycle wheels?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eBasalt adds resistance to heat buildup and improves braking consistency over standard carbon tracks. However, braking in wet or extreme descents still requires attention as carbon brake tracks cannot fully match alloy in those situations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eLightweight and Aerodynamic Rim Design\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bola EXP 40T Carbon Tubular Wheelset features 40mm deep carbon rims that provide an ideal balance of aerodynamic efficiency and lightweight performance. These 40mm tubular carbon road wheels are designed with a 25\/28mm internal and external rim width, offering enhanced stability and excellent tire support. This wide profile boosts cornering grip and improves ride comfort without compromising speed, making it perfect for road cyclists aiming to maximize their racing or training efficiency.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eHigh-Quality DT Swiss 240S Hub Integration\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEquipped with the renowned DT Swiss 240S hubs, these 40mm tubular carbon road wheels ensure smooth, reliable engagement and longevity. The hubs utilize precise bearings and premium materials, delivering a quiet and efficient ride. The DT Swiss 240S hubs also provide excellent power transfer, which is crucial for competitive cyclists seeking responsiveness and durability in their wheelset.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eOptimized for Rim Brake Compatibility and Versatility\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bola EXP 40T wheelset is optimized for rim brake systems, offering consistent stopping power and control with a dedicated braking surface on the carbon rims. This wheelset supports tubular tires, which are favored for their performance advantages in racing scenarios. The combination of rim brake compatibility and wide rim dimensions makes these 40mm tubular carbon road wheels a versatile and high-performance choice for serious cyclists prioritizing speed, handling, and reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"17\/25 mm \/ Shimano HG \/ Black Bola","offer_id":48259702030590,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Shimano HG \/ White Bola","offer_id":48259702063358,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Shimano HG \/ Customized","offer_id":48259702096126,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ Black Bola","offer_id":48259702128894,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ White Bola","offer_id":48259702161662,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ Customized","offer_id":48259702194430,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ Black Bola","offer_id":48259702227198,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ White Bola","offer_id":48259702259966,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ Customized","offer_id":48259702292734,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ Black Bola","offer_id":48259702325502,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ White Bola","offer_id":48259702358270,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ Customized","offer_id":48259702391038,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ Black Bola","offer_id":48259702423806,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ White Bola","offer_id":48259702456574,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ Customized","offer_id":48259702489342,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ Black Bola","offer_id":48259702522110,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ White Bola","offer_id":48259702554878,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ Customized","offer_id":48259702587646,"sku":null,"price":1111.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/dt240rimbrakewheel_white_aaf8a557-ba54-408a-a8da-222cbe476723.png?v=1780298498","url":"https:\/\/bolacarbon.com\/products\/bola-exp-40t-dt-swiss-240s-sapim-cx-ray-tubular-carbon-road-wheels-40mm-rim-brake-25-28mm-1170g","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}