Glossy Black lines (as in photo)
Advantage of Tubeless Ready Wheels:
1. Lighter: Since no tubeless tape needed for the Tubeless Ready Wheels, the weight of tubeless tape saved if you run the wheels tubeless;
2. Stronger: With no holes drilling on rim bed (except valve holes) and the carbon fiber not being damaged, the rim bed would be kept integral and performance of carbon fibers on rim bed increases;
3. No Air Leaking: No risk of air leaking comparing the wheels which are applied tubeless tape (Wheels with tubeless tape applied still have risk of air leaking), so that you could ride much longer journey than usual;
4. And more (maybe you know. ;)
Notes: Of course you are free to mount tubes on the Tubeless Ready wheels.