{"product_id":"700c-carbon-tubeless-rim-50mm-30mm-bola","title":"700C Carbon Tubeless Rim 50mm 30mm bola | Bola","description":"\u003cp\u003eHit a long rolling route, chase a crit PR, or build a lightweight gravel grinder with rims tuned to real-world demands. These 700c carbon tubeless rims combine a 50mm asymmetric V-profile with a 30mm outer \/ 24–25mm inner width to balance aerodynamics, tyre support, and climbing efficiency across four verified weight tiers.\u003c\/p\u003e\n\u003ch2\u003e700c Carbon Tubeless Rim - Designed for road and gravel performance\u003c\/h2\u003e\n\u003cp\u003eThe generous 30mm outer width stabilises 27c–42c tubeless tyres for a more stable contact patch and improved cornering confidence, while tubeless compatibility and a hookless-friendly bead seat enable lower tyre pressures for added comfort and traction on mixed surfaces.\u003c\/p\u003e\n\u003cp\u003eRiders will feel the tradeoff between aero gains and rotating mass: the 50mm profile offers tangible drag reduction at higher speeds, and the selectable weight tiers let you prioritise durability or minimal mass depending on your race or training goals.\u003c\/p\u003e\n\u003ch3\u003eWhy it fits your routine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance-tuned profile:\u003c\/strong\u003e 50mm asymmetric V-shape provides aerodynamic advantage at sustained speeds above ~35 km\/h while maintaining lateral stiffness for responsive handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide tyre compatibility:\u003c\/strong\u003e 30mm outer \/ 24–25mm inner width supports tubeless tyres from 27c to 42c, optimising tyre profile for lower pressure, better grip, and reduced rolling resistance compared with narrower rims.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour verified weight tiers:\u003c\/strong\u003e Choose Normal (475g ±15g), Superlight (435g ±10g), Ultralight (405g ±10g), or Extreme Light (380g ±10g) to match rider mass and intended use, from durable training to race-day builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural reliability:\u003c\/strong\u003e Forward compressive strength \u0026gt;300 kg, lateral torsion \u0026gt;50 kg, and spoke hole tension \u0026gt;280 kg provide robust load handling for daily use and spirited efforts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision manufacturing:\u003c\/strong\u003e Dynamic equilibrium \u0026lt;3g imbalance, flatness tolerance \u0026lt;0.15mm, and roundness tolerance \u0026lt;0.3mm support consistent wheelbuilding and predictable ride feel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomisable details:\u003c\/strong\u003e Valve hole (6.5mm), spoke hole (4.5mm), and assembly hole (7.5mm) diameters plus nipple offset and valve specifications can be customised to fit wheelbuilder preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePractical limits:\u003c\/strong\u003e Tyre pressure up to 90 psi and maximum rider weight 120 kg; Extreme Light tier is optimised for riders under ~75 kg on smooth roads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical measurements important to builders: ISO 622mm diameter, ERD 538mm, available inner widths of 24mm(hooked) or 25mm(hookless) (specify at order), and a valve hole diameter that can be customised; these rims are built for tubeless setups and wheelsets targeting sub-1,400g with the lighter tiers.\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":48831783600382,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Superlight","offer_id":48831783633150,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Ultralight","offer_id":48831783665918,"sku":null,"price":330.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Extremelight","offer_id":48831783698686,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Standard","offer_id":48831783731454,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 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