{"product_id":"bola-ult-40r-700c-carbon-disc-road-gravel-wheels-40mm-28-30mm-wide-tubeless-1210g","title":"Bola ULT 40R 700C Carbon Disc Road \u0026 Gravel Wheels – 40mm, 28\/30mm Wide, Tubeless 1210g","description":"\u003cp\u003eThe Bola ULT 40R is a high-performance 700C carbon wheelset designed for both road and gravel cyclists seeking aerodynamic efficiency, precision handling, and reliable tubeless-ready construction. With a 40mm rim depth, 28\/30mm external and 21\/24mm internal widths, and weighing just 1210g (+\/-30g), it offers a balance of low rotational weight and stability across varied conditions.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Depth:\u003c\/strong\u003e 40mm mid-profile increases aerodynamic efficiency for road and endurance riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal\/External Widths:\u003c\/strong\u003e 21mm or 24mm internal; 28mm or 30mm external optimizes for 28-48mm tire compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T800 UD matte carbon rim, aluminum BL180 hub, Sapim CX-Ray stainless steel spokes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1210g (set, without tape\/valves). Lightweight build supports rapid acceleration and reduced fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke Count:\u003c\/strong\u003e 24 spokes (front and rear), 2-cross lacing for torsional strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub System:\u003c\/strong\u003e BL100 with TPI ceramic bearings, 54T ratchet, Center Lock disc, compatible with 12x100mm and 12x142mm thru-axles and QR.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless Ready:\u003c\/strong\u003e Supports 28–48mm tubeless tires for flexibility across road and gravel surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ISO 4210-7, REACH-compliant for tested quality and safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 24 months limited coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComparison Table\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eRim Depth\u003c\/th\u003e\n\u003cth\u003eInternal Width\u003c\/th\u003e\n\u003cth\u003eTubeless\u003c\/th\u003e\n\u003cth\u003eMain Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBola ULT 40R\u003c\/td\u003e\n\u003ctd\u003e1210g\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e21\/24mm\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eRoad, Gravel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompetitor AR40\u003c\/td\u003e\n\u003ctd\u003eApprox. 1290g\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eAll-Road\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompetitor 40|44 GR\u003c\/td\u003e\n\u003ctd\u003eApprox. 1320g\u003c\/td\u003e\n\u003ctd\u003e40\/44mm\u003c\/td\u003e\n\u003ctd\u003e27mm\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eGravel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eUse Cases \u0026amp; Trade-offs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Performance:\u003c\/strong\u003e Compatible with a wide range of bikes and tire sizes for all-road or gravel events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight vs. Strength:\u003c\/strong\u003e Advanced T800 carbon maintains durability with a sub-1250g weight class, though heavier riders or aggressive off-road conditions may benefit from reinforced models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Engagement:\u003c\/strong\u003e The TPI ceramic bearing with 54T ratchet excels in responsiveness and durability but may require periodic maintenance for best results.\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 these 40mm carbon road wheels good for both gravel and road cycling?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, the Bola ULT 40R is designed with 21\/24mm internal widths and robust carbon layup, making them suitable for both competitive road cycling and demanding gravel riding with optimal tire fit and ride quality.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHow do 1210g T800 carbon disc brake wheels compare to other lightweight wheelsets?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAt 1210g, these T800 carbon wheels are competitive with top-tier models, providing fast acceleration and responsive handling while maintaining strength for everyday and endurance use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat tire widths work best with a 28mm or 30mm wide rim for tubeless setup?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe 28mm and 30mm external widths (21mm\/24mm internal) are ideal for 28–48mm tires, allowing optimal tubeless performance and air volume for mixed road and gravel surfaces.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs the TPI ceramic bearing hub with 54T ratchet worth it for performance and durability?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe TPI ceramic bearings offer low friction and high durability, while the 54T ratchet provides quick engagement. This improves responsiveness and reduces power loss, valued by both racers and endurance cyclists.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWill these wheels fit my road bike with 12x100 and 12x142mm thru-axles?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, the Bola ULT 40R supports both 12x100mm (front) and 12x142mm (rear) thru-axle standards and also includes quick-release compatibility, fitting most modern disc brake road and gravel bikes.\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 ULT 40R Disc Brake Carbon Road Bike Wheels–Tubeless,700C 40mm,28\/30mm Wide,Ultra light1210g\",\n  \"description\": \"The Bola ULT 40R is a high-performance 700C carbon wheelset designed for both road and gravel cyclists seeking aerodynamic efficiency, precision handling, and reliable tubeless-ready construction. With a 40mm rim depth, 28\/30mm external and 21\/24mm internal widths, and weighing just 1210g (+\/-30g), it offers a balance of low rotational weight and stability across varied conditions. Key Features Rim Depth: 40mm mid-profile increases aerodynamic efficiency for road and endurance riding. Internal\/External Widths: 21mm or 24mm internal; 28mm or 30mm external optimizes for 28-48mm tire compatibility. Material: T800 UD matte carbon rim, aluminum BL180 hub, Sapim CX-Ray stainless steel spokes. Weight: 1210g (set, without tape\/valves). Lightweight build supports rapid acceleration and reduced fatigue. Spoke Count: 24 spokes (front and rear), 2-cross lacing for torsional strength. Hub System: BL180 with TPI ceramic bearings, 54T ratchet, Center Lock disc, compatible with 12x100mm and 12x142mm thru-axles and QR. Tubeless Ready: Supports 28–48mm tubeless tires for flexibility across road and gravel surfaces. Certifications: ISO 4210-7, REACH-compliant for tested quality and safety. Warranty: 24 months limited coverage. Comparison Table Model Weight Rim Depth Internal Width Tubeless Main Use Bola ULT 40R 1210g 40mm 21\/24mm Yes Road, Gravel Competitor AR40 Approx. 1290g 40mm 25mm Yes All-Road Competitor 40|44 GR Approx. 1320g 40\/44mm 27mm Yes Gravel Use Cases \u0026 Trade-offs Versatile Performance: Compatible with a wide range of bikes and tire sizes for all-road or gravel events. Lightweight vs. Strength: Advanced T800 carbon maintains durability with a sub-1250g weight class, though heavier riders or aggressive off-road conditions may benefit from reinforced models. Hub Engagement: The TPI ceramic bearing with 54T ratchet excels in responsiveness and durability but may require periodic maintenance for best results. Frequently Asked Questions Are these 40mm carbon road wheels good for both gravel and road cycling? Yes, the Bola ULT 40R is designed with 21\/24mm internal widths and robust carbon layup, making them suitable for both competitive road cycling and demanding gravel riding with optimal tire fit and ride quality. How do 1210g T800 carbon disc brake wheels compare to other lightweight wheelsets? At 1210g, these T800 carbon wheels are competitive with top-tier models, providing fast acceleration and responsive handling while maintaining strength for everyday and endurance use. What tire widths work best with a 28mm or 30mm wide rim for tubeless setup? The 28mm and 30mm external widths (21mm\/24mm internal) are ideal for 28–48mm tires, allowing optimal tubeless performance and air volume for mixed road and gravel surfaces. Is the TPI ceramic bearing hub with 54T ratchet worth it for performance and durability? The TPI ceramic bearings offer low friction and high durability, while the 54T ratchet provides quick engagement. This improves responsiveness and reduces power loss, valued by both racers and endurance cyclists. Will these wheels fit my road bike with 12x100 and 12x142mm thru-axles? Yes, the Bola ULT 40R supports both 12x100mm (front) and 12x142mm (rear) thru-axle standards and also includes quick-release compatibility, fitting most modern disc brake road and gravel bikes.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Carbon Fiber Sporting Goods\"\n  },\n  \"category\": \"Carbon Gravel Bike Wheelsets\",\n  \"image\": [\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/45whitedb.png?v=1779865886\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/45white_5cfab1ea-27ae-400b-8605-0d3d743c9e80.png?v=1779865886\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/1420_e59e86e8-d43f-4c44-96f4-1e57c52de5fb.png?v=1779849663\"\n  ],\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"availability\": \"https:\/\/schema.org\/OutOfStock\",\n    \"price\": \"698.00\",\n    \"priceCurrency\": \"USD\",\n    \"url\": \"https:\/\/bolacarbon.com\/products\/bola-ult-40r-disc-brake-carbon-road-bike-wheels-tubeless-700c-40mm-28-30mm-wide-ultra-light1210g\",\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 these 40mm carbon road wheels good for both gravel and road cycling?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Bola ULT 40R is designed with 21\/24mm internal widths and robust carbon layup, making them suitable for both competitive road cycling and demanding gravel riding with optimal tire fit and ride quality.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do 1210g T800 carbon disc brake wheels compare to other lightweight wheelsets?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"At 1210g, these T800 carbon wheels are competitive with top-tier models, providing fast acceleration and responsive handling while maintaining strength for everyday and endurance use.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tire widths work best with a 28mm or 30mm wide rim for tubeless setup?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 28mm and 30mm external widths (21mm\/24mm internal) are ideal for 28–48mm tires, allowing optimal tubeless performance and air volume for mixed road and gravel surfaces.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the TPI ceramic bearing hub with 54T ratchet worth it for performance and durability?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The TPI ceramic bearings offer low friction and high durability, while the 54T ratchet provides quick engagement. This improves responsiveness and reduces power loss, valued by both racers and endurance cyclists.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these wheels fit my road bike with 12x100 and 12x142mm thru-axles?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Bola ULT 40R supports both 12x100mm (front) and 12x142mm (rear) thru-axle standards and also includes quick-release compatibility, fitting most modern disc brake road and gravel bikes.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"28\/21 mm \/ Shimano HG \/ Black Bola","offer_id":48267719409918,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Shimano HG \/ White Bola","offer_id":48267719442686,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Shimano HG \/ Customized","offer_id":48267719475454,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ Black Bola","offer_id":48267719508222,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ White Bola","offer_id":48267719540990,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ Customized","offer_id":48267719573758,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ Black Bola","offer_id":48267719606526,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ White Bola","offer_id":48267719639294,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ Customized","offer_id":48267719672062,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ Black Bola","offer_id":48267719704830,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ White Bola","offer_id":48267719737598,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ Customized","offer_id":48267719770366,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ Black Bola","offer_id":48267719803134,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ White Bola","offer_id":48267719835902,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ Customized","offer_id":48267719868670,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ Black Bola","offer_id":48267719901438,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ White Bola","offer_id":48267719934206,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ Customized","offer_id":48267719966974,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/45whitedb.png?v=1780298507","url":"https:\/\/bolacarbon.com\/pt\/products\/bola-ult-40r-700c-carbon-disc-road-gravel-wheels-40mm-28-30mm-wide-tubeless-1210g","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}