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19 votes
Accepted

Dynamo hub lights flickering: should I be concerned?

Shimano hubs and B&M lights should work nicely together. I've used that combination in the past. You need to ride around for a few minutes to charge up the capacitors that power the stand-lights ...
Paul H's user avatar
  • 4,152
13 votes
Accepted

DIY system for charging battery packs from hub dynamo

Decathlon uses a third party part, that is available for sale if you want to fit it on your bike: Cycle2Charge The category name for this kind of products is "headset cap USB charger" or &...
Rеnаud's user avatar
  • 20.6k
12 votes

Is there a bicycle light which is hard to steal or very portable?

I always carry lights with me when riding. If I'm parking somewhere safe, like my garage at home or our locked bike room at work, then I'll leave lights attached. If I'm at the shops then I lock the ...
Criggie's user avatar
  • 125k
9 votes

head and tail light connected to a single battery?

All the head/tail lights on the market appear to have their own separate battery and separate switches Not so. There are battery-less lights that you can run from dynamo. Generally the rear light is ...
juhist's user avatar
  • 19.1k
7 votes

head and tail light connected to a single battery?

I have ended up with a solution for this - I converted a front light that no longer held charge to run off a USB battery pack. At the same time I adapted a rear light to also run off 5V, and plug them ...
Chris H's user avatar
  • 59.7k
6 votes

Do hub dynamos with higher power output exist?

Actually a 3 W dynamo is mislabeled. It isn't 3 W. It is 0.5 A. A hub dynamo is mostly a constant current device. The faster it rotates, the higher is the frequency and voltage of the alternating ...
juhist's user avatar
  • 19.1k
5 votes

Is there a bicycle light which is hard to steal or very portable?

I think your question is two-fold, I will answer accordingly: Is there a bikelight product which is very hard to steal? As long as common fasteners (hex bolts, philips screw, etc...) are used to ...
Saaru Lindestøkke's user avatar
5 votes

Is there a bicycle light which is hard to steal or very portable?

I personally use a helmet which has lights built in, but I've recently noticed that the same manufacturer has released detachable lights: Lumos Firefly. They attach magnetically to a mounting plate. (...
Aaron F's user avatar
  • 151
5 votes

DIY system for charging battery packs from hub dynamo

The "Forumslader" (German site) is a semi-commercial semi-DIY dynamo charger. Schematics for older versions are available. This very detailed article by Olaf Schultz, also in German, ...
Erlkoenig's user avatar
  • 2,057
4 votes

Is there a bicycle light which is hard to steal or very portable?

Personally, I take lights if I'm going to ride in the evening: if I'm delayed because of a puncture or other reason, I prefer to ride safe home (I also have a light mounted on my helmet). Hard to ...
Rеnаud's user avatar
  • 20.6k
4 votes

Is there a bicycle light which is hard to steal or very portable?

I think it's a gross mistake that bicycle manufacturers generally fail to include lights that are powered by one of the main power sources of the bike. For non-electric bikes, this means lights ...
juhist's user avatar
  • 19.1k
3 votes

Is there a bright bike light that is theft-resistant?

If you are willing to gum up a hex screw head and break of the tap of a quick-release mechanism you have some options. Some lights come with a hard plastic or aluminium mount with a hex screw or it ...
Michael's user avatar
  • 27.8k
3 votes
Accepted

head and tail light connected to a single battery?

Supernova do a set of lights under the name 'Airstream 2' where the rear light is powered by the battery in the front light. The front lights come in regular and upside-down configurations - the light ...
Chris Walker's user avatar
3 votes

Is there a bicycle light which is hard to steal or very portable?

I have a hardshell lockable box on the pannier rack. It is heavier but holds against the rain very well. Another benefit, I can simply remove the lights that is easy and lock them in the box.
nightrider's user avatar
  • 7,879
3 votes

Safety data: Which is safer, head/tail lights which blink or emit a steady beam?

Sanchises noted in a 2018 comment that… There's also this 2008 study by the Dutch research institute TNO. It concludes a marginal increase in visibility for flashing front lights, but recommends ...
3 votes

Is there a bicycle light which is hard to steal or very portable?

On the road bike I have Trek/Bontrager Ion200+Flare RT which I have always mounted and always turned on (even during the day, they automatically turn on with my Garmin Edge and change mode depending ...
Michael's user avatar
  • 27.8k
3 votes

Is there a bicycle light which is hard to steal or very portable?

It depends on your location and the local crime level but in general lights that require a screw driver or similar tool to remove are much much safer from being stolen than lights you can remove with ...
quarague's user avatar
  • 454
3 votes

Is there a bicycle light which is hard to steal or very portable?

I use some very cheap lights which rarely gets stolen because they are so cheap Something like this: https://www.amazon.com/Bicycle-Light-Front-Rear-Silicone/dp/B0BL7C75MH/ref=sr_1_9?crid=...
Esben Skov Pedersen's user avatar
3 votes

DIY system for charging battery packs from hub dynamo

Most Dynamos are 6V, 3W output, you would need to know the specs for yours. Amazon/Aliexpress etc have heaps of 6-24V input to USB output devices for a couple of dollars. You can also get a 0.9-5V ...
mattnz's user avatar
  • 50.9k
2 votes
Accepted

Where are light connector terminals on an E-bike?

It may depends from brand to brand, the only way to find it being to look at the technical documentation.It is however very likely that it will be on the motor unit itself (but may not be at an ...
Rеnаud's user avatar
  • 20.6k
2 votes
Accepted

Best type/designation of 2-strand wire to buy in bulk for generator and ebike lights

For wire size - have a look at this question - What gauge wire is used for dynamo hubs and lights? Easy option is "twin core 22AWG speaker wire" - could look for 20AWG or 0.75mm (which is ...
mattnz's user avatar
  • 50.9k
2 votes

head and tail light connected to a single battery?

I did that with a maintenance free lead battery like this one. It fits neatly under the bottom bracket where I secured it with an old inner tube which I pulled really tight and double-knotted. You use ...
Peter - Reinstate Monica's user avatar
2 votes

Is there a bicycle light which is hard to steal or very portable?

Any light which you can carry on your person would be considered difficult to steal. Any light which is left unattended with a similarly unattended bicycle, would be considered easy to steal, as ...
Miles Prower's user avatar
2 votes

head and tail light connected to a single battery?

I had something like this on my M5 recumbent. I had a bag behind the seat, where a ryobi 18V drill battery sat. I bought a clip-on USB adapter thinking it would be handy, but in the end never used ...
Criggie's user avatar
  • 125k
2 votes

Is there a bright bike light that is theft-resistant?

I'm not aware of lamps fulfilling these criteria in the price range you mention. There are MTB lamps that would fulfill the requirements, but their price is rather in the $200-$400 range (and while ...
Rеnаud's user avatar
  • 20.6k
2 votes

Do hub dynamos with higher power output exist?

Referring to the answers to an old question of mine one solution would be to run a hub dynamo and the best bottle dynamo you can buy. Start with a standard hub dynamo setup with a top-of-the range ...
Chris H's user avatar
  • 59.7k
2 votes

Fitting an additional rear light to Bosch ebike

Most likely it will work, but you need to somehow tap into the existing voltage source. The easiest way would be probably to take the existing light, and look at its markings to see which wire is plus ...
juhist's user avatar
  • 19.1k
1 vote

Fitting an additional rear light to Bosch ebike

ANSWER: Rather than mess with the existing wiring, consider fitting a second battery powered light instead. This gets you the requested second light. Advantages: Doesn't require tinkering with ...
Criggie's user avatar
  • 125k
1 vote

Is there a bicycle light which is hard to steal or very portable?

I wrote a post listing out some locking lights and other alternatives to detachable lights on my website: Bike to Everything - Locking Lights. Here is some of the info rewritten specifically to answer ...
biketoeverything.com's user avatar

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