Pay in 4 interest-free payments of $13.75 Learn more
Ships within 48 hours · Estimated delivery Nov 5 - Nov 10
It is easy to install and remove thanks to its two straps
All elements of the glasses are removable and interchangeable
The Lyrik also integrates the new large-volume DebonAir pneumatic spring
Hand-built like all CHALLENGE products
Roulement ENDURO BEARINGS CO 6903 LLB - Zero Ceramic - 17x30x7 mm promo It is easy to installThe CO 6903 LLB Enduro Bearings bearing is an ABEC 5 ceramic hybrid bearing with Black Oxide treatment with dimensions 17 x 30 x 7 mm. This Enduro Zero technology combines ceramic balls, ABEC 5 precision and anti corrosion treatment for maximum performance. Silicon nitride (Si3N4) balls offer reduced friction and increased durability. ABEC 5 precision guarantees optimal concentricity and rotational consistency. The Black Oxide treatment enhances the
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