{"product_id":"bola-st-40t-dt-swiss-350s-carbon-road-wheelset-40mm-tubular-rim-brake-25-28mm-1200g","title":"Bola ST 40T DT Swiss 350S Carbon Road Wheelset – 40mm Tubular, 25\/28mm Wide, 1200g","description":"\u003cp\u003eThe Bola ST 40T DT Swiss 350S Carbon Road Wheelset offers a 40mm rim depth, 1200g set weight, and certified Toray T700\/T800 carbon construction to deliver reliable aerodynamic performance for road cyclists. With both 25mm and 28mm width options, it balances speed and climbing efficiency while supporting a wide tire range—making it well-suited for endurance rides, training, or as a cost-effective upgrade from aluminum wheels.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Depth:\u003c\/strong\u003e 40mm (aerodynamic mid-depth for speed and stability in crosswinds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Width:\u003c\/strong\u003e 25mm or 28mm (internal; supports 25c–30c tubular tires for tailored ride feel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 1200g ±20g\/set (excludes accessories; suited for climbing and acceleration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Toray T700\/T800 unidirectional carbon fiber rims with Sapim CX Ray spokes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub System:\u003c\/strong\u003e DT Swiss 350S (proven endurance, smooth engagement, easy servicing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Type:\u003c\/strong\u003e Rim brake (tubular; classic road setup)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRider Weight Limit:\u003c\/strong\u003e Certified up to 100kg (EN 14781 tested)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended Use:\u003c\/strong\u003e Road cycling, sportive, amateur and intermediate racing, training\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years manufacturer coverage for defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow it Compares\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eBola ST 40T DT Swiss 350S\u003c\/th\u003e\n\u003cth\u003ePerformance Competitor Model\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 (tubular, rim brake)\u003c\/td\u003e\n\u003ctd\u003e40mm (most use clincher\/tubeless, disc brake)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth Options\u003c\/td\u003e\n\u003ctd\u003e25mm \/ 28mm\u003c\/td\u003e\n\u003ctd\u003eTypically 25mm internal (limited width range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Wheelset Weight\u003c\/td\u003e\n\u003ctd\u003e1200g ±20g\u003c\/td\u003e\n\u003ctd\u003e~1177g (claimed disc version)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub\u003c\/td\u003e\n\u003ctd\u003eDT Swiss 350S (star ratchet)\u003c\/td\u003e\n\u003ctd\u003eDT240 EXP \/ Ratchet upgrade (faster engagement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake Compatibility\u003c\/td\u003e\n\u003ctd\u003eRim brake (tubular)\u003c\/td\u003e\n\u003ctd\u003eDisc brake, tubeless-ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eEN 14781 \/ 100kg limit\u003c\/td\u003e\n\u003ctd\u003eETRTO, max ~100kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 years (manufacturer support)\u003c\/td\u003e\n\u003ctd\u003eStandard 2 years or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eRecommended Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEndurance road cycling events requiring both climbing efficiency and aero performance\u003c\/li\u003e\n\u003cli\u003eAmateur or intermediate cyclists upgrading from aluminum wheels to improve speed and responsiveness\u003c\/li\u003e\n\u003cli\u003eCyclists needing a lightweight carbon wheelset for rolling, hilly, or mixed-terrain road rides\u003c\/li\u003e\n\u003cli\u003eB2B shops seeking quality carbon wheels with stable global supply and rider-rated after-sales support\u003c\/li\u003e\n\u003cli\u003eCompetitive training rides where reduced rotating mass improves acceleration\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 carbon wheelsets good for both climbing and flat road cycling?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. A 40mm rim strikes a balance between moderate aerodynamic benefit for flats\/descents and a low enough profile for responsive climbing. At 1200g, the Bola ST 40T offers low rotational mass suitable for mixed profiles without the crosswind drawbacks of deeper rims.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat are the benefits of a 1,200g tubular rim brake wheelset for endurance rides?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAt 1200g, the wheelset reduces overall bike weight, aiding climbing stamina and accelerating more efficiently over long distances. Tubular setups offer a distinct ride quality and lower puncture risk for certain riders. Braking surface and rim construction are optimized for sustained reliability during extended use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHow does a 25mm vs 28mm wide carbon road wheelset affect performance?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eA 25mm wide rim provides a classic feel and works well with 25c–28c tires for reduced weight and aero benefits. A 28mm rim increases tire volume, improving comfort and grip, especially on rougher surfaces or with 28c-30c tires. Bola offers both for customized riding experiences.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs a 40mm rim brake carbon wheelset a good upgrade from aluminum wheels?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eFor most riders, upgrading to a carbon 40mm rim brake wheelset lowers weight, enhances stiffness and aerodynamics, and delivers a more responsive road feel compared to standard aluminum wheels. The Bola ST 40T is engineered for those seeking a noticeable uplift in ride quality and speed without excessive cost.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhich lightweight road wheelset is best for riders up to 100kg?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe Bola ST 40T DT Swiss 350S wheelset is EN 14781 certified for riders up to 100kg, with reinforced spoke lacing and premium carbon to ensure structural integrity and long-term reliability within this limit.\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 ST 40T DT Swiss 350S Carbon Road Wheelset – 40mm Tubular Rim, 25\/28mm Wide, 1200g\",\n  \"description\": \"The Bola ST 40T DT Swiss 350S Carbon Road Wheelset offers a 40mm rim depth, 1200g set weight, and certified Toray T700\/T800 carbon construction to deliver reliable aerodynamic performance for road cyclists. With both 25mm and 28mm width options, it balances speed and climbing efficiency while supporting a wide tire range—making it well-suited for endurance rides, training, or as a cost-effective upgrade from aluminum wheels. Key Features \u0026 Specs Rim Depth: 40mm (aerodynamic mid-depth for speed and stability in crosswinds) Rim Width: 25mm or 28mm (internal; supports 25c–30c tubular tires for tailored ride feel) Total Weight: 1200g ±20g\/set (excludes accessories; suited for climbing and acceleration) Material: Toray T700\/T800 unidirectional carbon fiber rims with Sapim CX Ray spokes Hub System: DT Swiss 350S (proven endurance, smooth engagement, easy servicing) Brake Type: Rim brake (tubular; classic road setup) Rider Weight Limit: Certified up to 100kg (EN 14781 tested) Intended Use: Road cycling, sportive, amateur and intermediate racing, training Warranty: 2 years manufacturer coverage for defects How it Compares Feature Bola ST 40T DT Swiss 350S Performance Competitor Model Rim Depth 40mm (tubular, rim brake) 40mm (most use clincher\/tubeless, disc brake) Width Options 25mm \/ 28mm Typically 25mm internal (limited width range) Total Wheelset Weight 1200g ±20g ~1177g (claimed disc version) Hub DT Swiss 350S (star ratchet) DT240 EXP \/ Ratchet upgrade (faster engagement) Brake Compatibility Rim brake (tubular) Disc brake, tubeless-ready Certification EN 14781 \/ 100kg limit ETRTO, max ~100kg Warranty 2 years (manufacturer support) Standard 2 years or less Recommended Use Cases Endurance road cycling events requiring both climbing efficiency and aero performance Amateur or intermediate cyclists upgrading from aluminum wheels to improve speed and responsiveness Cyclists needing a lightweight carbon wheelset for rolling, hilly, or mixed-terrain road rides B2B shops seeking quality carbon wheels with stable global supply and rider-rated after-sales support Competitive training rides where reduced rotating mass improves acceleration Frequently Asked Questions Are 40mm carbon wheelsets good for both climbing and flat road cycling? Yes. A 40mm rim strikes a balance between moderate aerodynamic benefit for flats\/descents and a low enough profile for responsive climbing. At 1200g, the Bola ST 40T offers low rotational mass suitable for mixed profiles without the crosswind drawbacks of deeper rims. What are the benefits of a 1,200g tubular rim brake wheelset for endurance rides? At 1200g, the wheelset reduces overall bike weight, aiding climbing stamina and accelerating more efficiently over long distances. Tubular setups offer a distinct ride quality and lower puncture risk for certain riders. Braking surface and rim construction are optimized for sustained reliability during extended use. How does a 25mm vs 28mm wide carbon road wheelset affect performance? A 25mm wide rim provides a classic feel and works well with 25c–28c tires for reduced weight and aero benefits. A 28mm rim increases tire volume, improving comfort and grip, especially on rougher surfaces or with 28c-30c tires. Bola offers both for customized riding experiences. Is a 40mm rim brake carbon wheelset a good upgrade from aluminum wheels? For most riders, upgrading to a carbon 40mm rim brake wheelset lowers weight, enhances stiffness and aerodynamics, and delivers a more responsive road feel compared to standard aluminum wheels. The Bola ST 40T is engineered for those seeking a noticeable uplift in ride quality and speed without excessive cost. Which lightweight road wheelset is best for riders up to 100kg? The Bola ST 40T DT Swiss 350S wheelset is EN 14781 certified for riders up to 100kg, with reinforced spoke lacing and premium carbon to ensure structural integrity and long-term reliability within this limit.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Carbon Fiber Sporting Goods\"\n  },\n  \"category\": \"High-Performance Carbon Road Wheelsets\",\n  \"image\": [\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/dt35020_24wheel.png?v=1780298485\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/bola38mmcarbonrimbrakewheelsetdt350.png?v=1780298486\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/boladt350carbonwheelset_fae489a1-e4ec-43db-8728-b50e7b3d4d78.png?v=1780298485\"\n  ],\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"availability\": \"https:\/\/schema.org\/OutOfStock\",\n    \"price\": \"860.00\",\n    \"priceCurrency\": \"USD\",\n    \"url\": \"https:\/\/bolacarbon.com\/products\/bola-st-40t-dt-swiss-350s-carbon-road-wheelset-40mm-tubular-rim-brake-25-28mm-1200g\",\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 carbon wheelsets good for both climbing and flat road cycling?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. A 40mm rim strikes a balance between moderate aerodynamic benefit for flats\/descents and a low enough profile for responsive climbing. At 1200g, the Bola ST 40T offers low rotational mass suitable for mixed profiles without the crosswind drawbacks of deeper rims.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the benefits of a 1,200g tubular rim brake wheelset for endurance rides?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"At 1200g, the wheelset reduces overall bike weight, aiding climbing stamina and accelerating more efficiently over long distances. Tubular setups offer a distinct ride quality and lower puncture risk for certain riders. 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Bola offers both for customized riding experiences.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is a 40mm rim brake carbon wheelset a good upgrade from aluminum wheels?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For most riders, upgrading to a carbon 40mm rim brake wheelset lowers weight, enhances stiffness and aerodynamics, and delivers a more responsive road feel compared to standard aluminum wheels. The Bola ST 40T is engineered for those seeking a noticeable uplift in ride quality and speed without excessive cost.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which lightweight road wheelset is best for riders up to 100kg?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Bola ST 40T DT Swiss 350S wheelset is EN 14781 certified for riders up to 100kg, with reinforced spoke lacing and premium carbon to ensure structural integrity and long-term reliability within this limit.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"17\/25 mm \/ Shimano HG \/ Black Bola","offer_id":48259472228606,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Shimano HG \/ White Bola","offer_id":48259472261374,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Shimano HG \/ Customized","offer_id":48259472294142,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ Black Bola","offer_id":48259472326910,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ White Bola","offer_id":48259472359678,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Sram XDR \/ Customized","offer_id":48259472392446,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ Black Bola","offer_id":48259472425214,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ White Bola","offer_id":48259472457982,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"17\/25 mm \/ Compy \/ Customized","offer_id":48259472490750,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ Black Bola","offer_id":48259472523518,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ White Bola","offer_id":48259472556286,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Shimano HG \/ Customized","offer_id":48259472589054,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ Black Bola","offer_id":48259472621822,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ White Bola","offer_id":48259472654590,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Sram XDR \/ Customized","offer_id":48259472687358,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ Black Bola","offer_id":48259472720126,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ White Bola","offer_id":48259472752894,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true},{"title":"21\/28 mm \/ Compy \/ Customized","offer_id":48259472785662,"sku":null,"price":860.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/dt35020_24wheel.png?v=1780298485","url":"https:\/\/bolacarbon.com\/it\/products\/bola-st-40t-dt-swiss-350s-carbon-road-wheelset-40mm-tubular-rim-brake-25-28mm-1200g","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}