{"product_id":"700c-carbon-tubeless-road-rim-50mm-high-28mm-wide-hook-hookless-bola","title":"700c Carbon Tubeless Road Rim, 50mm Profile, 28mm Wide – Hook\/Hookless | Bola","description":"\u003ch2\u003eAnswer: High-Performance 700c Carbon Tubeless Rim for Road Cycling\u003c\/h2\u003e\n\u003cp\u003eThe Bola 700c Carbon Tubeless Road Rim delivers lightweight performance with a 50mm aerodynamic profile and 28mm outer width, optimized for road cycling, competitive racing, and endurance use. Compatible with tubeless tires, in both hookless and traditional hooked formats, and supports a rider weight up to 120 kg.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Size:\u003c\/strong\u003e 700c\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile Depth:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Width:\u003c\/strong\u003e 28mm; \u003cstrong\u003eInternal Options:\u003c\/strong\u003e 21mm \/ 23mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Tiers:\u003c\/strong\u003e 370g–470g (± tolerance per tier; see table)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim Type:\u003c\/strong\u003e Tubeless-ready clincher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Hooked \u0026amp; hookless tubeless systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Rider Weight:\u003c\/strong\u003e 120 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 years manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Drilling:\u003c\/strong\u003e Available on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWeight Tiers Comparison\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTier\u003c\/th\u003e\n\u003cth\u003eWeight (per rim)\u003c\/th\u003e\n\u003cth\u003eBest Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e470 ±15g\u003c\/td\u003e\n\u003ctd\u003eTraining, endurance, heavy loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuper Light\u003c\/td\u003e\n\u003ctd\u003e430 ±15g\u003c\/td\u003e\n\u003ctd\u003eAll-round road racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltralight\u003c\/td\u003e\n\u003ctd\u003e390 ±10g\u003c\/td\u003e\n\u003ctd\u003eClimbing, lightweight builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtreme Light\u003c\/td\u003e\n\u003ctd\u003e370 ±10g\u003c\/td\u003e\n\u003ctd\u003eWeight-focused race setups (tighter tolerance band, lower long-term durability)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTrade-offs \u0026amp; Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Lower weight tiers use advanced layup techniques; Extreme Light prioritizes weight over long-term training durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTesting:\u003c\/strong\u003e Manufactured to ISO 4210 cycling safety standards; validated to \u0026gt;120kg load rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials \u0026amp; Origin:\u003c\/strong\u003e Constructed with high-modulus carbon fiber, produced under strict EU and North American quality controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs: What Cyclists Ask\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Should I choose hookless or hooked?\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA: Hookless is lighter, optimized for tubeless, but check tire compatibility. Hooked supports broader tire choices and higher pressures for traditional setups.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does 28mm width improve performance?\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA: Yes; 28mm outer (with 21\/23mm internal) provides improved aerodynamic stability, tire support, and allows safer use of 25–32mm tires at lower pressures per industry research.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How do Bola rims compare to other 50mm carbon rims?\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA: Bola offers four calibrated weights, competitive pricing, custom drilling, and \u003cstrong\u003eISO-certified\u003c\/strong\u003e load testing—ideal for cycling brands, pro teams, and independent racers seeking quality assurance.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How do I select the best tier?\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA: Choose based on use: training\/endurance (Standard\/Super Light); racing\/climbing (Ultralight\/Extreme Light). Extreme Light gives the lowest mass but is best reserved for race-day use.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 20\/20 \/ Standard","offer_id":48126845288702,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Superlight","offer_id":48126845321470,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Ultralight","offer_id":48126845354238,"sku":null,"price":330.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 20\/20 \/ Extremelight","offer_id":48126845387006,"sku":null,"price":340.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Standard","offer_id":48126845419774,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 \/ Superlight","offer_id":48126845452542,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 24\/24 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