{"product_id":"bola-ult-50r-700c-carbon-disc-wheelset-50mm-21-24mm-inner-tubeless-ready-1250g","title":"Bola ULT 50R 700C Carbon Disc Wheelset – 50mm, 21\/24mm Tubeless, 1250g Lightweight","description":"\u003cp\u003eThe Bola ULT 50R 700C Carbon Disc Wheelset delivers a balance of advanced aerodynamics, low weight (1250g), and multi-surface compatibility, making it suitable for both road racing and gravel riding. Built with T800 unidirectional matte carbon fiber rims, Sapim CX-Ray stainless steel spokes, and BL180 hubs featuring TPI ceramic bearings and a 54T ratchet system, the wheelset supports 21mm or 24mm internal widths and 28–48mm tubeless tires. This combination enables rapid acceleration with reduced rolling resistance and proven fatigue reduction—even during long endurance events.\u003c\/p\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eUnmatched Performance with the 50mm Carbon Disc Tubeless Wheelset\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Depth:\u003c\/strong\u003e 50mm, mid-profile for aerodynamic gains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Rim Width:\u003c\/strong\u003e 21mm or 24mm; \u003cstrong\u003eExternal:\u003c\/strong\u003e 28mm or 30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Tire Size:\u003c\/strong\u003e 28mm–48mm, optimized for modern tubeless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheelset Weight:\u003c\/strong\u003e 1250g (set, excluding tape and valves)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke Count:\u003c\/strong\u003e 24 front \u0026amp; rear (2x lacing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub:\u003c\/strong\u003e BL180 alloy, TPI ceramic bearings, 54T ratchet, Center Lock, 12x100\/12x142mm \u0026amp; QR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e ISO 4210-7 road safety, REACH materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance \u0026amp; Use Case Comparison\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eBola ULT 50R\u003c\/th\u003e\n\u003cth\u003eTypical Alloy 50mm\u003c\/th\u003e\n\u003cth\u003ePeer Carbon 50mm\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1250g\u003c\/td\u003e\n\u003ctd\u003e1550-1800g\u003c\/td\u003e\n\u003ctd\u003e1200-1350g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Width\u003c\/td\u003e\n\u003ctd\u003e21\/24mm\u003c\/td\u003e\n\u003ctd\u003e17-19mm\u003c\/td\u003e\n\u003ctd\u003e21-25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Width\u003c\/td\u003e\n\u003ctd\u003e28\/30mm\u003c\/td\u003e\n\u003ctd\u003e23-25mm\u003c\/td\u003e\n\u003ctd\u003e28-31mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTubeless Ready\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eRare\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle Options\u003c\/td\u003e\n\u003ctd\u003e12x100\/12x142\/QR\u003c\/td\u003e\n\u003ctd\u003eQuick release\u003c\/td\u003e\n\u003ctd\u003e12x100\/12x142\/QR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eReal-World Performance Insights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e50mm profile provides significant aero advantage for group rides and racing\u003c\/li\u003e\n\u003cli\u003eWide internal width enhances tire support for mixed surfaces, supporting both 28–32mm road and 35–48mm gravel tire setups\u003c\/li\u003e\n\u003cli\u003e1250g total set minimizes rotational mass for fast climbing and accelerations\u003c\/li\u003e\n\u003cli\u003eCeramic bearings reduce drag and support high-output efforts over long distances\u003c\/li\u003e\n\u003cli\u003eTubeless-ready construction decreases risk of flats and improves ride quality at lower pressures\u003c\/li\u003e\n\u003cli\u003eCertified to ISO 4210-7 and REACH for validated safety and sustainability\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 50mm carbon disc wheels good for both road race and gravel riding?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, Bola ULT 50R is designed with versatile rim widths and tubeless compatibility for optimal performance on both road and gravel. Its 50mm profile offers aerodynamic efficiency for road races while the broader internal width supports stability on rough terrain.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat are the benefits of tubeless ultralight carbon wheelsets for competition rides?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eTubeless-ready, lightweight carbon wheelsets such as Bola ULT 50R lower rolling resistance, offer improved traction at reduced tire pressures, and reduce flat risk—beneficial for endurance and race conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eHow does a 1250g 700C wheelset compare to other lightweight options?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAt 1250g per set, Bola ULT 50R ranks among the lighter carbon wheelsets available, supporting faster accelerations and reduced fatigue compared to standard alloy or heavier carbon designs.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs 28mm or 30mm wide rim better for 28–48mm tires?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e28mm is suited for 28–32mm road tires with aerodynamic focus, while 30mm provides better sidewall support and stability for wider 35–48mm gravel tires.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat’s the best carbon wheelset for improving acceleration and reducing fatigue?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe Bola ULT 50R utilizes T800 carbon layup and Sapim CX-Ray spokes to lower inertia, coupled with ceramic hubs for decreased friction—contributing to responsive acceleration and minimized long-ride fatigue, proven by race\/statistical comparisons versus similar-class wheelsets.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eLightweight and Aerodynamic Design\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bola ULT 50R 700C carbon disc wheelset stands out with its perfect balance of lightweight construction and aerodynamic efficiency. Weighing just 1250 grams, this 50mm carbon disc tubeless wheelset is engineered to reduce drag while maintaining structural strength and durability. Its 21\/24mm rim width optimizes tire profile and improves tubeless tire compatibility, giving riders enhanced grip and reduced rolling resistance. Ideal for competitive cyclists, this wheelset delivers superior speed and control on any terrain.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eOptimized Tubeless Compatibility for Enhanced Ride Quality\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDesigned specifically as a 50mm carbon disc tubeless wheelset, the Bola ULT 50R offers exceptional tubeless tire support with its precise 21mm internal and 24mm external rim widths. This configuration ensures easy tire installation, improved air retention, and a smoother ride by allowing lower tire pressures without the risk of pinch flats. Cyclists benefit from better shock absorption and increased traction, making it a perfect choice for long rides and variable road conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eDurability and Precision Engineering for Perfect Handling\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bola ULT 50R combines high-quality carbon fiber with expert craftsmanship to create a reliable and stiff 50mm carbon disc tubeless wheelset. Its robust build ensures excellent lateral stiffness for precise cornering and stable braking performance on disc brake systems. The wheelset is optimized for 700C road bikes, providing consistent power transfer and enabling riders to maintain high speeds without compromising safety or comfort.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"28\/21 mm \/ Shimano HG \/ Black Bola","offer_id":48267758567678,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Shimano HG \/ White Bola","offer_id":48267758600446,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Shimano HG \/ Customized","offer_id":48267758633214,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ Black Bola","offer_id":48267758665982,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ White Bola","offer_id":48267758698750,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Sram  XDR \/ Customized","offer_id":48267758731518,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ Black Bola","offer_id":48267758764286,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ White Bola","offer_id":48267758797054,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"28\/21 mm \/ Compy \/ Customized","offer_id":48267758829822,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ Black Bola","offer_id":48267758862590,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ White Bola","offer_id":48267758895358,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Shimano HG \/ Customized","offer_id":48267758928126,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ Black Bola","offer_id":48267758960894,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ White Bola","offer_id":48267758993662,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Sram  XDR \/ Customized","offer_id":48267759026430,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ Black Bola","offer_id":48267759059198,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ White Bola","offer_id":48267759091966,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"30\/24 mm \/ Compy \/ Customized","offer_id":48267759124734,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/50white_11a8218b-14f2-49df-b80b-77f03da42fbf.png?v=1780298506","url":"https:\/\/bolacarbon.com\/products\/bola-ult-50r-700c-carbon-disc-wheelset-50mm-21-24mm-inner-tubeless-ready-1250g","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}