Originally Posted by
JohnJ80
Agree. But that is not the choice because the Varia v20 (RTL510) is a highly visible and bright light for DAYTIME riding.
I have so many of the “best” taillights for daytime riding and the RTL510 is right up at the top for being seen by a car approaching from behind. I don’t think it’s a compromise at all for a daytime running light.
I don’t see any problem with the 510’s light. My riding buddy also has one and I can see his from quite a distance away. The point I was trying to make was given the choice between a bright lite and the radar, even if it didn’t have a light, I would opt for the radar. Before getting the 510, I never rode with a taillight, only a mirror. The 510 has really changed the way I ride on public roads.