Get some "straw" spoke reflectors, the ones that snap on. I use Salzmans because they use Scotchlite. You only need three per wheel, but you can add one on each spoke if you want. They stay-put--i haven't lost one in over a year.
Salzmann 3M Spoke Reflectors for... https://www.amazon.com/dp/B00DNG8DSY?ref=ppx_pop_mob_ap_share
I ordered from China the red and white truck reflectors on Amazon. What I got were strips of red and white gloss paper! The only reflective quality came from the gloss of the paper, total rip off!
I also added spoke reflectors which really scream BIKE when the light hit them.
Vielleicht findest du ja Nagellack mit reflektierender Eigenschaft oder du nimmst sowas in der Art.
I saw someone using these a while back and they were really visible from side on once the car lights started catching them.
Wir nutzen die hier
Die deutsche StVO ist Hammer die sind für Deutschland nicht zugelassen. Da gelten nur zwei gelbe Reflektoren 180° auseinander oderdurchgehend weiß reflektierender Streifen.
If you do a lot of night/low-light riding anywhere near a road these are a nice compromise for the wheels. They’re pretty unobtrusive and effective.
Salzmann 3M Spoke Reflectors, Made with 3M Scotchlite, Patented Spoke reflectors for Bikes (36 Pieces) https://www.amazon.com/dp/B00DNG8DSY/ref=cm_sw_r_cp_api_i_QMFBFbG3JHMCK
It's these. One pack is enough for two bikes outfitted like you see above.
They're very light, they snap around a (round) spoke pretty snug so they don't slide up and down and make noise. For the riding I do, they're pretty slick for side visibility.
Why bother removing them? They don't hurt anything, and may improve visibility at night. When you combine them correctly with something like this over 1/3 of the spokes, they provide a sense of motion and immediate recognition of a bicycle to motorists.
They do look cool but a solution like the following is much cheaper, no battery to worry about etc. I bought 2 sets and used 1.5 for my wheels.
Salzmann 3M Scotchlite Hi Vis Spoke Reflector Bicycle Clips - 36 Pack https://www.amazon.com/dp/B00DNG8DSY/ref=cm_sw_r_cp_api_X56wAbHT9BE3A
I just put these on last week. They definitely light the wheel up. I can't speak to their longevity, but I have to think they'll last longer than stickers?
https://www.amazon.com/gp/product/B00DNG8DSY/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
Grab a pack of these https://www.amazon.com/Salzmann-Scotchlite-Spoke-Reflector-Bicycle/dp/B00DNG8DSY
These invisible during the day, but super bright at night. Combine them with some reflective tape on the frame, bright lights, maybe some tyres with reflective sidewalls when the time comes to change them, plus bright clothes and you're super safe!
I just got these and they’re pretty slick. 3M Scotchlite, the original and still the best.
Salzmann 3M Spoke Reflectors for... https://www.amazon.com/dp/B00DNG8DSY?ref=ppx_pop_mob_ap_share
Got them on Amazon for a few bucks. Salzmann 3M Spoke Reflectors, Made with 3M Scotchlite, Patented Spoke reflectors for Bikes (36 Pieces) https://www.amazon.com/dp/B00DNG8DSY/ref=cm_sw_r_cp_api_glt_fabc_NBS1T68HRRQT7P9D8B3P?_encoding=UTF8&psc=1
These what I recommend. They are incredibly bright and almost invisible during the day. My daughter and both have them on our bikes.
https://www.amazon.com/dp/B00DNG8DSY/ref=cm_sw_r_awdo_HECZPKNXGZRCHP5XHHN1
Get https://www.amazon.com/gp/product/B00DNG8DSY - not exactly same as on photo, but easy to install and highly visible from the sides!
Amazon Salzmann 3M Spoke Reflectors for Bicycles | High Visibility| Made with 3M Scotchlite | 36 Pieces https://www.amazon.com/dp/B00DNG8DSY/ref=cm_sw_r_cp_apip_hOAOe1WgXxQM2
https://www.amazon.com/dp/B00DNG8DSY?ref=ppx_pop_mob_ap_share
Two of these covered both sides of both my tires , at full speed you look like a tron bike :)
Video of the spoke reflectors in action, buy them here. The jacket is the Proviz Reflect360.
https://www.amazon.co.uk/dp/B00DNG8DSY/ref=cm_sw_r_wa_apa_i_mP8BFbK9Y99B7 £8.49 for 36 pieces.
IF ONLY THEY CAME IN BLACK!
These work well too
https://www.amazon.com/Salzmann-Scotchlite-Spoke-Reflector-Bicycle/dp/B00DNG8DSY