Ultra-Light 700C Bike wheels High-Performance Carbon Fiber 21 holes bike hub 2:1 RD07

• Versatile Rim Compatibility：28mm width with 50/60/45-50mm depth, compatible with 700C*25-45C tires, suitable for various road conditions and riding demands.
• Premium Freehub System：Center lock design with 36T Ratchet Freehub System, compatible with Shimano 11/12s and Sram 12s XDR, ensuring smooth shifting and long-lasting performance.
• Durable Spoke Construction：Equipped with Pillar 2015 round spokes, enhancing the wheel set’s structural strength for more efficient power transfer and stable riding.
• Customizable Surface Finishes：Available in UD/marble matte/glossy/UD paintless finishes, catering to personalized aesthetic preferences.
• If you require a lighter and better configuration for rim or spoke, please contact us for an upgrade.

♦The RD07 Standard Version has a 28mm width with two depth options: 50mm/60mm. The Wave Rim Version also features a 28mm width, with a depth of 45-50mm. The images below display the 50mm-depth Standard Version and the Wave Rim Version (45-50mm depth) with pearl white hot-stamped gold logos.

If you want to upgrade to the Wave Rim Version, feel free to contact us. We also provide custom logo service to meet your personalized needs.

• Precise Axle Spacing：Front axle 12×100mm, rear axle 12×142mm, complying with road/racing bike standard specifications for perfect fitment.
• High-Grade Bearings：Both hub bearings and free body bearings adopt 6802*2 specification, ensuring smooth rotation and excellent load-bearing capacity for enhanced riding efficiency.
• Upgradable Ratchet Structure：36T ratchet as standard, upgradeable to 54T for faster shifting response, meeting professional racing needs.
• Center Lock Design：Center lock system ensures stable brake disc installation with minimal wobble during braking, guaranteeing riding safety.
• Ultimate Lightweight：Front hub only 85g, rear hub 190g, significantly reducing the overall wheel set weight and improving riding maneuverability.

• Optimized tension performance: Delivers stable deformation under 0–250 kgf spoke tension for consistent wheel integrity.
• Superior breaking strength: Boasts high breaking strength with a tested load curve up to 7.0 rating, ensuring durability under heavy stress.
• Precision-machined design: Features calibrated dimensions (including diameter and thread specs) for seamless compatibility with standard wheel hubs/rims.
• Pillar 2015 Round Spoke features a lightweight design, with the spoke itself weighing 4.4g and the aluminum nipple weighing an additional 5g.

⇒Road disc brake carbon wheel build with 28mm outer wide rim :

700C road disc brake carbon rim 28mm width specs:

Rim	SA50CT-28	SA60CT-28	SA4550-28
Rim Weight	470g±15g	535g±15g	440g±15g
ERD	540mm	520mm	/
Surface Texture	UD/marble/UD paintless	UD/marble/UD paintless	UD/marble/UD paintless
Sectional Drawing