Avian CR4 DB

1320 grams for 45MM, balance style.

Paint Free Rim
Same paint free rim like our flagship model. 28mm external width, 21mm internal.

Ratchet System
Stable and easy to maintain by changing ratchet ring inside.

2:1
Ensuring similar tension of drive and non-drive side for stiffer riding feedback. Spoke is unlikely to loosen in 2:1 system too.

Aero Spoke
Blade spoke with 28mm rim for better aero performance.

Oversize Flange
Increase the stiffness and stability by changing spoke length and angle.

Mega-Structure
No external hole design. The continuous structure make the rim stronger and stiffer. Rim tape is not needed and thus saves another 50 grams in use.

Sapim Secure Lock
Secure Lock nipple prevents the self rotation of spoke in long use. Less likely to loosen and ran-out.

Specification
Rim: Avian CR4 DB
Brake Type: Disc Brake
Tyre Type: Clincher/Tubeless
Width: 28MM
Height: 45/55MM
Weight: 1320/1400 Grams
Spoke: Aero
Bearing: Steel
Holes: 21/24
Compatibility: Thru Axle Center Lock
Warranty: 1 Year(Rim&Hub)