Carbon fiber road bike wheelset 21 holes SA-RD07

Carbon fiber road bike wheelset disc brake 21 holes SA-RD07 hub (2:1)

Carbon road bike wheelset SA-RD07 

Engineered for road cycling enthusiasts seeking premium performance, this carbon fiber wheel set delivers a perfect blend of lightweight design, durability, and compatibility.

♦Key features

• Ratchet 36T free hub for fast power transfer
• SA-RD07 hub 21 hole front and rear, 2:1 design
• Pillar 2015 round spokes, super light
• Fits Shimano/11/12s or Sram XDR 12s
• 50mm, 60mm, 45-50mm rim depth, 28mm width 
• UD/marble matte/UD pantless finish available
• 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.

SPECIFICATION

 

SA-RD07 Center-lock hub

Pillar 2015 round spoke

• Optimized tension performance: Deliver 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 :

Model	Deep	Outer wide	Rim type	Front size	Rear Size	Spoke	Holes	Weight (+/-3%)
SA50CT-28	50mm	28mm	Tubeless	12*100mm	12*142mm	pillar 2015 round spoke	21H/21H(2:1)	1430g
SA60CT-28	60mm	28mm	Tubeless	12*100mm	12*142mm	pillar 2015 round spoke	21H/21H(2:1)	1560g
SA4550-28	45-50mm	28mm	Tubeless	12*100mm	12*142mm	pillar 2015 round spoke	21H/21H(2:1)	1370g

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