{"product_id":"29er-carbon-mtb-rim-28mm-hookless","title":"29er Carbon Mountain Bike Rim — 28mm Inner Width Hookless Tubeless Ready, 23mm Profile, 300–375g","description":"\u003cp\u003eBuilt for cross-country and light trail riders who want lower rotational weight and confident cornering, this 29er carbon rim balances race-focused performance with practical durability. Use it with ETRTO-certified tubeless tires in the 2.1–2.4\" range to benefit from improved tire support, a rounder profile, and reduced pinch-flat risk.\u003c\/p\u003e\n\u003ch2\u003eBola MTB34-C23-29 — Designed for 29\" cross-country and trail riders\u003c\/h2\u003e\n\u003cp\u003eThe Bola MTB34-C23-29 is a hookless, tubeless-ready carbon fiber rim engineered around the ISO 622mm (29er) standard. With a low 23mm profile and 28mm inner width, it is optimized to improve traction and handling on hardpack and loose terrain while shaving substantial weight relative to alloy rims.\u003c\/p\u003e\n\u003cp\u003eThe rim comes in three verified weight grades: Standard (375 ± 15g), Superlight (330 ± 10g), and Ultralight (300 ± 10g). Each layup trades impact tolerance for rotational weight savings, and the rim is rated for riders up to 100kg when built to specification.\u003c\/p\u003e\n\u003ch3\u003eWhy it fits your routine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-ready weight options:\u003c\/strong\u003e Choose Ultralight (300 ± 10g) for competitive XC, Superlight (330 ± 10g) for a balance of durability and weight savings, or Standard (375 ± 15g) for greater longevity on varied trails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHookless tubeless performance:\u003c\/strong\u003e Hookless U-shaped bead allows a cleaner carbon layup and tubeless compatibility; designed for tubeless tires that meet ETRTO hookless standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized tire support:\u003c\/strong\u003e 28mm inner width recommended for 2.1–2.4\" tires (53–61mm), promoting a rounder tire profile, improved cornering traction, and fewer pinch flats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile stability:\u003c\/strong\u003e 23mm rim height provides responsive steering and reduced windage for XC and endurance riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural integrity:\u003c\/strong\u003e Forward compressive strength \u0026gt;300kg, lateral torsion resistance \u0026gt;50kg, spoke hole tension \u0026gt;280kg, flatness tolerance \u0026lt;0.15mm, and roundness tolerance \u0026lt;0.3mm ensure consistent performance under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable build options:\u003c\/strong\u003e Spoke hole diameter (standard 4.5mm), valve hole (6.5mm), assembly hole (7.5mm), and nipple direction (left 5° \/ right 7°) are configurable to suit wheelbuilders and hub choices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure and tire compatibility:\u003c\/strong\u003e Hookless limit caps tire pressure at 45–65 psi; clincher tires with inner tubes are not recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven ERD and sizing:\u003c\/strong\u003e ERD 592mm and outer width 34mm provide predictable spoke length calculations and compatibility with common 29er components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKnown tradeoffs include the 65 psi hookless pressure ceiling and the requirement for ETRTO-compliant tubeless tires; riders needing higher pressures or using non-tubeless clincher setups should consider a hooked-bead rim. The rim's verified dynamic equilibrium (\u0026lt;3g) and precise manufacturing tolerances make it suitable for XC and light trail use within its specified rider weight and impact expectations.\u003c\/p\u003e","brand":"Carbon Fiber Sporting Goods","offers":[{"title":"UD Matt \/ 28\/28 \/ Normal","offer_id":48128993329406,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 28\/28 \/ Superlight","offer_id":48128993362174,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 32\/32 \/ Normal","offer_id":48128993394942,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ 32\/32 \/ Superlight","offer_id":48128993427710,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ Customs \/ Normal","offer_id":48128993460478,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Matt \/ Customs \/ Superlight","offer_id":48128993493246,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 28\/28 \/ Normal","offer_id":48128993526014,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 28\/28 \/ Superlight","offer_id":48128993558782,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 32\/32 \/ Normal","offer_id":48128993591550,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ 32\/32 \/ Superlight","offer_id":48128993624318,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ Customs \/ Normal","offer_id":48128993657086,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"UD Glossy \/ Customs \/ Superlight","offer_id":48128993689854,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ 28\/28 \/ Normal","offer_id":48128993722622,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ 28\/28 \/ Superlight","offer_id":48128993755390,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ 32\/32 \/ Normal","offer_id":48128993788158,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ 32\/32 \/ Superlight","offer_id":48128993820926,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ Customs \/ Normal","offer_id":48128993853694,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Matt \/ Customs \/ Superlight","offer_id":48128993886462,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 28\/28 \/ Normal","offer_id":48128993919230,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 28\/28 \/ Superlight","offer_id":48128993951998,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 32\/32 \/ Normal","offer_id":48128993984766,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ 32\/32 \/ Superlight","offer_id":48128994017534,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ Customs \/ Normal","offer_id":48128994050302,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true},{"title":"Marble Glossy \/ Customs \/ Superlight","offer_id":48128994083070,"sku":null,"price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/8492\/0062\/files\/bola_29_inch_carbon_rims_bd3419a0-f7f9-441b-8f41-ab30904360ce.png?v=1780298328","url":"https:\/\/bolacarbon.com\/es\/products\/29er-carbon-mtb-rim-28mm-hookless","provider":"Bola Carbon Wheelset ","version":"1.0","type":"link"}