# 29er Carbon MTB Rim – 30mm Profile, 25mm Inner for XC/AM ## Ultimate Performance with the 29er Carbon MTB Rim 25mm Inner **Answer:** This carbon fiber 29-inch MTB rim features a 30mm height and 25mm inner width engineered for competitive cross-country and all-mountain use. Choose between Standard (385 ± 15g) or Superlight (325 ± 10g) builds. Rim is U-shape, hookless, and tubeless-ready, supporting tire widths from 2.2" to 2.4". Primed for stiffness, durability, and weight efficiency. ### Key Specifications Specification Value Wheel Size 29 inch (29er) Rim Profile U-Shape, Hookless Rim Height 30 mm Outer Width 30 mm Inner Width 25 mm Weight (Standard) 385 ± 15 g Weight (Superlight) 325 ± 10 g ERD 579 mm Max Spoke Tension \>280 kg Tubeless Compatible Yes (45–65 psi) Valve Compatibility Schrader/Presta (6.5 mm) Recommended Tire Width 2.2–2.4 in Testing Forward Compressive Strength: >300 kg Lateral Torsion: >50 kg Flatness Tolerance: <0.15 mm (CNC verified) ### Comparison: 30mm vs 35mm Rim Height for MTB XC - **30mm:** Balances aerodynamic profile and climbing efficiency. - **35mm:** Offers improved high-speed aero but may slightly increase weight. ### Frequently Asked Questions Is a 25mm inner width carbon rim suitable for both trail and XC use? Yes. 25mm inner width provides an ideal balance of traction, tire stability, and compatibility with 2.2"–2.4" MTB tires for modern cross-country and light all-mountain applications. What is the advantage of Superlight vs Standard weight versions? Superlight (325g) reduces rotating mass for acceleration in competitive XC but has a slightly lower absolute impact resistance than Standard (385g). Select based on race priority versus aggressive trail use. What certifications or test results support performance claims? This rim undergoes in-house load tests: >300kg forward compressive strength, >50kg lateral torsion, and spoke tension over 280kg. Flatness tolerance within 0.15mm confirms manufacturing precision. All data available upon request. ### Intended User & Warranty - Designed for small/medium cycling brands, professional racing teams, and cyclists seeking lightweight, durable, high-performance carbon MTB rims. - 3-year warranty against manufacturing defects. ### Lightweight Construction for Enhanced Agility The 29er carbon MTB rim 25mm inner size is built with high-quality carbon fiber to ensure minimal weight without compromising strength. This lightweight construction improves the bike’s responsiveness, allowing riders to accelerate faster and handle technical terrain with ease. Whether you’re racing cross-country (XC) or tackling aggressive all-mountain (AM) trails, the rim’s reduced mass helps reduce fatigue and enhances overall riding efficiency, delivering a more enjoyable and controlled mountain biking experience. ### Optimized 30mm Profile for Stability and Control This rim’s 30mm profile width provides an optimal balance between strength and aerodynamic efficiency. The wider profile allows for greater tire volume, which improves traction and cushioning on rough trails. Riders benefit from increased stability when cornering and descending at high speeds, crucial for demanding XC and AM disciplines. The 25mm inner width perfectly complements the profile, accommodating a broad range of tire sizes to fine-tune grip and comfort based on trail conditions and personal preference. ### Durability and Precision Engineering for Long-Term Use Expertly engineered for durability, this 29er carbon MTB rim features reinforced spoke holes and advanced layup techniques to prevent cracking or deformation under stress. Its robust design ensures resistance against impacts and rough terrain, providing reliable performance over thousands of miles. The precise manufacturing processes also guarantee perfect roundness and true alignment, reducing maintenance and improving wheel longevity. This rim is a trustworthy choice for serious riders who demand consistency and quality on every trail. ## Details - **Price:** 310.0 USD - 320.0 USD - **Type:** Carbon Mountain Bike Rim - **Tags:** 25mm inner rim, 29er carbon MTB rim, carbon bike rim, mountain bike rim, mtb, rims, XC AM bike rim ## Variants | Variant | Price | Available | |---------|-------|-----------| | UD Matt / 28/28 / Normal | 310.00 USD | In stock | | UD Matt / 28/28 / Superlight | 320.00 USD | In stock | | UD Matt / 32/32 / Normal | 310.00 USD | In stock | | UD Matt / 32/32 / Superlight | 320.00 USD | In stock | | UD Matt / Customs / Normal | 310.00 USD | In stock | | UD Matt / Customs / Superlight | 320.00 USD | In stock | | UD Glossy / 28/28 / Normal | 310.00 USD | In stock | | UD Glossy / 28/28 / Superlight | 320.00 USD | In stock | | UD Glossy / 32/32 / Normal | 310.00 USD | In stock | | UD Glossy / 32/32 / Superlight | 320.00 USD | In stock | | UD Glossy / Customs / Normal | 310.00 USD | In stock | | UD Glossy / Customs / Superlight | 320.00 USD | In stock | | Marble Matt / 28/28 / Normal | 310.00 USD | In stock | | Marble Matt / 28/28 / Superlight | 320.00 USD | In stock | | Marble Matt / 32/32 / Normal | 310.00 USD | In stock | | Marble Matt / 32/32 / Superlight | 320.00 USD | In stock | | Marble Matt / Customs / Normal | 310.00 USD | In stock | | Marble Matt / Customs / Superlight | 320.00 USD | In stock | | Marble Glossy / 28/28 / Normal | 310.00 USD | In stock | | Marble Glossy / 28/28 / Superlight | 320.00 USD | In stock | | Marble Glossy / 32/32 / Normal | 310.00 USD | In stock | | Marble Glossy / 32/32 / Superlight | 320.00 USD | In stock | | Marble Glossy / Customs / Normal | 310.00 USD | In stock | | Marble Glossy / Customs / Superlight | 320.00 USD | In stock | ## Images - 29er Carbon MTB Rim featuring a 30mm profile and 25mm inner width, suitable for XC/AM use. Includes UCI logo and warranty det - Top view of 29 inch carbon mountain bike rim showing U-shape hookless profile - Detail of hookless rim bead on 29er carbon MTB rim for tubeless tire compatibility - 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Carbon Fiber Sporting Goods - 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Carbon Fiber Sporting Goods ## Additional Information - **Related products settings:** ahead --- > Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/29er-carbon-mtb-rim-30mm-profile-25mm-inner-for-xc-am) > Updated: 2026-07-31