{"product_id":"bola-700c-carbon-tubeless-rim-40mm-28mm","title":"Bola 700c Carbon Tubeless Road Rim – 40mm Deep, 28mm Wide","description":"\u003cp\u003eTake a fast weekend group ride, a long training day, or a decisive climb and feel the difference a carefully engineered rim makes. The Bola 700c carbon tubeless rim combines a 40mm aero profile with a 28mm outer width to deliver a confident, stable ride when paired with modern road tires.\u003c\/p\u003e\u003cp\u003eIts tubeless-ready bed and available hooked or hookless bead profiles let you tailor tire volume and pressure for the conditions you ride most, whether you prize low rolling resistance for racing or durability for everyday training.\u003c\/p\u003e\u003ch2\u003eBola 700c Carbon Tubeless Road Rim - Designed for road, racing and climbing\u003c\/h2\u003e\u003cp\u003eThe rim's U-shaped 40mm depth balances aerodynamic gains with crosswind stability, while the broad 28mm outer width optimizes tire integration for 28–32c and wider tires depending on the inner width choice. Multiple weight grades let you prioritize durability for high-mileage builds or minimize rotating mass for climbing and sprinting.\u003c\/p\u003e\u003ch3\u003eWhy it fits your routine\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless-ready out of the box:\u003c\/strong\u003e No rim-tape conversion required; ideal for riders who want reliable tubeless seals and easier tire seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo bead options:\u003c\/strong\u003e Hooked 21mm inner width for broad tire compatibility (25c–32c) and hookless 23mm for larger volume and improved compliance with compatible tires (28c–35c).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide aero profile:\u003c\/strong\u003e 28mm outer width creates a smoother aero transition with 28–32c tires, reducing drag from mismatched tire-rim junctions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple weight grades:\u003c\/strong\u003e Choose Standard (425 ±15 g), Super Light (390 ±10 g), Ultra Light (365 ±10 g) or Extreme Light (345 ±10 g) to match training durability or race-focused builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong structural ratings:\u003c\/strong\u003e Forward compressive strength \u0026gt;300 kg, lateral torsion resistance \u0026gt;50 kg, and spoke hole tension rating \u0026gt;280 kg for reliable wheel builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision manufacturing:\u003c\/strong\u003e Dynamic equilibrium \u0026lt;3 g, flatness tolerance \u0026lt;0.15 mm and roundness tolerance \u0026lt;0.3 mm to ensure predictable handling and consistent truing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable details:\u003c\/strong\u003e Valve hole, spoke hole and assembly hole diameters plus nipple angle options are available to suit specific build preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure and load limits:\u003c\/strong\u003e Min\/max tire pressure 100\/125 psi per spec when using compatible setups; maximum rider weight 120 kg (264 lb).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub and rotor compatibility:\u003c\/strong\u003e Compatible with standard road hub widths (100mm front \/ 130mm or 142mm rear) and supports center-lock or 6-bolt disc configurations when specified at build.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDesign choices such as the hookless 23mm inner width provide greater air volume and compliance at lower pressures (recommended 72–87 psi with ETRTO-approved hookless tires), while the hooked 21mm option preserves compatibility with a wider range of clincher and tubeless tires for mixed-surface or higher-pressure applications. The rim's ERD of 558mm and customizable spoke\/nipple specifications simplify wheel building to commonly used spoke lengths and components. Whether you prioritize aerodynamic integration, weight savings for climbing, or a robust platform for daily training, the Bola rim family offers graded options and structural metrics to match those goals.\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":48646248792318,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 20\/20 \/ Standard","offer_id":48646248825086,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble  Matt \/ 20\/20 \/ Standard","offer_id":48646248857854,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 20\/20 \/ Standard","offer_id":48646248890622,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Superlight","offer_id":48646248923390,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ 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