Reflective lines are clearly visible when illuminated by a car headlight.
The two tire-sized circles of light make a cyclist easily seen and
German Motor Vehicle Safety Standards (StVZO § 67, Abs 7) allow this as an adequate replacement for wheel reflectors.
The European approval mark certifies conformity with all legal
requirements for lighting equipment (ECE – Regulations 88). That
means for the REFLECTIVE lines, light refection is sufficiently strong and bright, even at an unfavorable angle.
Because of this considerable safety advantage, we began to use
reflective lines years ago as standard for all high quality touring and city tires.