{"product_id":"bola-ult-45g-700c-carbon-disc-wheelset-45mm-tubeless-road-grave-34-36-38mm-wide","title":"Bola ULT 45G 700C Carbon Disc Wheelset – 45mm Tubeless Road \u0026 Grave,34\/36\/38mm wide","description":"\u003cp\u003eBola ULT 45G 700C Carbon 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 45mm – aerodynamic for road, stable for gravel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Width:\u003c\/strong\u003e 28mm 30mm or 32mm – select for tire compatibility (28–50mm tubeless)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Width:\u003c\/strong\u003e 34mm 36mm or 38mm – supports wide, modern tires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T800 unidirectional matte carbon fiber rim, BL180 hub, TPI ceramic bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke Count:\u003c\/strong\u003e 24 front \/ 24 rear – Sapim CX-Ray stainless steel, 2-cross lacing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub System:\u003c\/strong\u003e BL1 alloy hub, TPI ceramic bearings, 12x100\/12x142mm or QR compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1230g (set, excludes tape\/valves)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e ISO 4210-7, REACH compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 24 months limited, global support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow it Compares\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eRecommended Use Cases\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gfai-product-faq\"\u003e\n\u003csummary\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003cbr\u003e\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 45R 700C Carbon Disc Wheelset – 45mm Road \u0026 Gravel Tubeless 1230g\",\n  \"description\": \"Bola ULT 45R 700C delivers lightweight, aerodynamic performance for both road and gravel riders, combining a 45mm deep T800 carbon rim with dual tubeless width options. Weighing only 1230g, this wheelset is engineered for fast acceleration and stable handling across mixed terrain, with ISO 4210-7 and REACH-certified quality you can trust. Key Features \u0026 Specs Rim Depth: 45mm – aerodynamic for road, stable for gravel Internal Width: 21mm or 24mm – select for tire compatibility (28–48mm tubeless) External Width: 28mm or 30mm – supports wide, modern tires Material: T800 unidirectional matte carbon fiber rim, BL180 hub, TPI ceramic bearings Spoke Count: 24 front \/ 24 rear – Sapim CX-Ray stainless steel, 2-cross lacing Hub System: BL1 alloy hub, TPI ceramic bearings, 12x100\/12x142mm or QR compatibility Weight: 1230g (set, excludes tape\/valves) Certification: ISO 4210-7, REACH compliant Warranty: 24 months limited, global support How it Compares Feature Bola ULT 45R 700C Performance Model (e.g., CSC Ultralight 1137g\/C45AR) Weight (pair) 1230g 1137g – 1455g Rim Material T800 UD Carbon Varies (T700\/T800, mix UD) Rim Depth 45mm 45mm Internal Width 21\/24mm 23–26mm External Width 28\/30mm 30–32mm Spokes Sapim CX-Ray (steel) Carbon\/Steel, varies Bearings TPI Ceramic Ceramic\/Steel, varies Tubeless Ready Yes Yes Hub System BL1, in-house QC Mix (Ratchet, USA-made, or OEM) Certification ISO 4210-7, REACH Not always specified Warranty 24 months, global service 12–24 months, varies Use Scenarios Road\/Gravel\/Touring Road\/Gravel; some single-use focus Recommended Use Cases Upgrading to a lightweight 45mm carbon disc wheelset for mixed road and gravel events Training and race use for amateur and endurance cyclists seeking improved acceleration and aero efficiency B2B: Supplying versatile, certified carbon wheels for independent bike shops and cycling retailers OEM\/ODM customization for small brands seeking in-house hub and rim specification controls Cross-terrain projects: Touring, club rides, gravel racing, and daily road commutes with tubeless set-up Frequently Asked Questions Are 45mm carbon disc wheels good for both road and gravel riding? Yes. The Bola ULT 45R 700C features a 45mm aerodynamic rim paired with 21mm or 24mm internal widths, supporting 28–48mm tubeless tires. This design balances aero gains for road with stability and comfort for mixed-surface gravel, validated by ISO 4210-7 standards. What's the weight difference between 45mm and 30mm carbon wheelsets for gravel bikes? The Bola ULT 45R 700C weighs 1230g, competitive with leading 45mm options. 30mm deep carbon wheelsets often weigh 1050–1200g, but deliver less aerodynamic benefit for fast road riding. Choose 45mm for a broader balance of speed and multi-use capability. Will a 45mm deep rim fit 28–48mm tubeless tires safely? Yes, both the 21mm and 24mm internal rim width options are tubeless-ready and tested for compatibility with 28–48mm tires. This configuration optimizes tire profile for safety, stability, and reduced rolling resistance across diverse riding surfaces. How do Sapim CX-Ray spokes and TPI ceramic bearings improve wheel performance? Sapim CX-Ray spokes offer high tensile strength with minimal aerodynamic drag, enhancing wheel stability and ride smoothness. TPI ceramic bearings reduce friction and improve hub durability, resulting in faster rolling and sustained performance under heavy mileage. Is a 1230g carbon wheelset worth it for lightweight road cycling? Bola ULT 45R 700C's 1230g weight enables more responsive acceleration, easier climbing, and reduced fatigue on long rides. While not the absolute lightest in the field, it achieves a strong balance of weight, stiffness, and price, suitable for both performance-focused enthusiasts and budget-conscious riders.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Carbon Fiber Sporting Goods\"\n  },\n  \"category\": \"Carbon Disc Road \u0026 Gravel Wheelset\",\n  \"image\": [\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/45white_5cfab1ea-27ae-400b-8605-0d3d743c9e80.png?v=1780298507\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/45whitedb.png?v=1780298507\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/1420_e59e86e8-d43f-4c44-96f4-1e57c52de5fb.png?v=1780298505\"\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-45r-700c-carbon-disc-wheelset-road-gravel-tubeless-45mm-1230g\",\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 45mm carbon disc wheels good for both road and gravel riding?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Bola ULT 45R 700C features a 45mm aerodynamic rim paired with 21mm or 24mm internal widths, supporting 28–48mm tubeless tires. This design balances aero gains for road with stability and comfort for mixed-surface gravel, validated by ISO 4210-7 standards.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What's the weight difference between 45mm and 30mm carbon wheelsets for gravel bikes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Bola ULT 45R 700C weighs 1230g, competitive with leading 45mm options. 30mm deep carbon wheelsets often weigh 1050–1200g, but deliver less aerodynamic benefit for fast road riding. Choose 45mm for a broader balance of speed and multi-use capability.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 45mm deep rim fit 28–48mm tubeless tires safely?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, both the 21mm and 24mm internal rim width options are tubeless-ready and tested for compatibility with 28–48mm tires. This configuration optimizes tire profile for safety, stability, and reduced rolling resistance across diverse riding surfaces.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do Sapim CX-Ray spokes and TPI ceramic bearings improve wheel performance?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Sapim CX-Ray spokes offer high tensile strength with minimal aerodynamic drag, enhancing wheel stability and ride smoothness. TPI ceramic bearings reduce friction and improve hub durability, resulting in faster rolling and sustained performance under heavy mileage.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is a 1230g carbon wheelset worth it for lightweight road cycling?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Bola ULT 45R 700C's 1230g weight enables more responsive acceleration, easier climbing, and reduced fatigue on long rides. While not the absolute lightest in the field, it achieves a strong balance of weight, stiffness, and price, suitable for both performance-focused enthusiasts and budget-conscious riders.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"34\/28 mm \/ Shimano HG \/ Black Bola","offer_id":48491169710334,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Shimano HG \/ White Bola","offer_id":48491169743102,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Shimano HG \/ Customized","offer_id":48491169775870,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Sram  XDR \/ Black Bola","offer_id":48491169808638,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Sram  XDR \/ White Bola","offer_id":48491169841406,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Sram  XDR \/ Customized","offer_id":48491169874174,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Compy \/ Black Bola","offer_id":48491169906942,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Compy \/ White Bola","offer_id":48491169939710,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"34\/28 mm \/ Compy \/ Customized","offer_id":48491169972478,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Shimano HG \/ Black Bola","offer_id":48491170005246,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Shimano HG \/ White Bola","offer_id":48491170038014,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Shimano HG \/ Customized","offer_id":48491170070782,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Sram  XDR \/ Black Bola","offer_id":48491170103550,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Sram  XDR \/ White Bola","offer_id":48491170136318,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Sram  XDR \/ Customized","offer_id":48491170169086,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Compy \/ Black Bola","offer_id":48491170201854,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Compy \/ White Bola","offer_id":48491170234622,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"36\/30 mm \/ Compy \/ Customized","offer_id":48491170267390,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Shimano HG \/ Black Bola","offer_id":48491250286846,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Shimano HG \/ White Bola","offer_id":48491250319614,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Shimano HG \/ Customized","offer_id":48491250352382,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Sram  XDR \/ Black Bola","offer_id":48491250385150,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Sram  XDR \/ White Bola","offer_id":48491250417918,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Sram  XDR \/ Customized","offer_id":48491250450686,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Compy \/ Black Bola","offer_id":48491250483454,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Compy \/ White Bola","offer_id":48491250516222,"sku":null,"price":698.0,"currency_code":"USD","in_stock":true},{"title":"38\/32 mm \/ Compy \/ Customized","offer_id":48491250548990,"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\/products\/bola-ult-45g-700c-carbon-disc-wheelset-45mm-tubeless-road-grave-34-36-38mm-wide","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}