Blackburn

Using these helmet mirrors for years on every new helmet. Even though Garmin Varia tail light tells me when vehicle aproaching from the rear, a quick head tilt gives me visual confirmation of what's comming, and how close they may be when passing, while still seeing the road ahead. Also, when riding in a paceline, can keep track of riders behind, without losing site of rider in front.

Must be careful when adjusting angle so as not to detach from helmet. After securing in place with included adhesive disc, I seal the edges with silicone glue/sealer.

Great little tool kit. I keep 1 in the shop and 1 in the car. I could easily carry 1 on the bike or back pack.

I've been using these helmet mirrors for many years, and rely on them continuously to keep aware of what may be coming up from behind, be it a pack of riders, a fast moving car, or a large truck. I have now supplemented this awareness with a Garmin Varia rear tail light with radar. The combination works great to keep me as safe as possible on the road. Only draw back is when I get off the bike and take off my helmet, I still find myself just tilting my head to see behind me, forgetting the mirror is no longer there.

Affordable and easy to use, but a couple of strange design choices that have lead me to go back to my 15 year old rusty Topeak multi. First, the case is strange and doesn't quite close as well as it could. Second, there is no included phillips bit. Thirdly, and the biggest offense for me, is the decision to make the 3mm and smaller hex keys ball-end. When I'm on the side of the road making an adjustment, I don't need to be worrying whether or not I'm about to round out the 3mm bolts on my Thomson stem. It's a bizarre design choice and I can't think of any situation where I'd prefer ball-end over straight hex, especially in roadside/emergency situations.