- Night riding – confusion about "twilight"
but wonder if anyone knows the answer.
Just put the lights on your bike.
If worried about them getting nicked then either use quick release mounts or non-quick release mounts. If secure mounted, and have a seperate battery pack, take battery with you after locking bike, to make stealing light less worthwhile.Posted 7 months agoorangespydermanSubscriber
Having just completed a 24h race (5 man relay, I’m not that ‘ard 🙂 ) I am currently of the opinion that several lights are better than 1 :
– You can run them all on low power most of the time and the batteries will last way longer
– You have some resiliency if one goes pop
– You can get a combination of helmet mounted and handlebar mounted that is useful (and if something breaks, a helmet mounted is really good for fixing stuff on the trail because it lights up what you’re looking at – try sorting something out whilst holding the light with the other hand…)
– I’d have a least one light with me at all times. Think a quick drink after work, think an issue that means you leave later than planned, think horrific thunderstorm…
Screw all the nonsense about twilight, I got caught out on a 25 minute lap thinking I’d have loads of time; it was pitch black in the forest parts by the time I’d finished, but still light enough in the open. At the very least one on the helmet all the time that I’d turn on if needed in your situation.Posted 7 months agosallenMember
Yes we are all confused about twilight – but set aside the vampire saga for a moment.
I’m about to take a new route to my new job and want to do some forward planning.
I will be off-road on unlit paths and trails – I have off-road lights. I’m looking at charts of sunrise/set times.
It seems to me that out of, from lightest to darkest, Civil, Nautical and Astronomical twilight, if my ride ventures into civil twilight I’ll need lights – maybe before if it’s cloudy, or I’m in the trees, unless it’s winter and the trees have no leaves.
Is there any rule of thumb I can use for planning – such as 30 mins before civil twilight I’ll need to bust out the big lights?
I could just observe the sky for a couple of days (not forward planning) – but wonder if anyone knows the answer.Posted 7 months agosallenMember
I have QR lights (2 of, one bar mounted, one helmet mounted)
After looking at sunrise times – I’ll plan to fit lights from around mid-September – should see me right until late FebPosted 7 months agomikewsmithSubscriber
After looking at sunrise times – I’ll plan to fit lights from around mid-September – should see me right until late Feb
Fit them now, every chance of a dull, grey or cloudy/foggy/wet day where having some more light or being seen by other users will be great, not having them will be annoying, yep in the time it took to write the post and wait for an answer you could have fitted them already 😉Posted 7 months agokayak23Subscriber
Is there any rule of thumb I can use for planning
There is yes. Plan that if you can’t see owt, turn your lights on.Posted 7 months ago
I keep re reading the op but can’t seem to work out how there is a problem with just turning lights on when it’s dark. What are you actually planning for? 😀dissonanceSubscriber
For road riding I would tend to switch lights on about half hour to hour before sunset depending on how overcast it is.Posted 7 months ago
Offroad depends on how overcast it is and also if I riding through somewhere with a thick tree canopy.
Basic lights (eg commutable and slow offroad) tend to get stuck on the bike when heading out soon as the nights draw in. Then add on the good lights as needed. So if heading out say hour or so before sunset or going for a long ride they go on. Then switch them on when i cant see well.wwaswasSubscriber
Civil, Nautical and Astronomical twilight
We use ‘ride leader chooses’ on group rides. It avoids everyone else arguing over when lights go on.
at this time of year the amount of cloud cover makes more difference to visibility under trees etc than a few minutes change in sunset times.Posted 7 months agobenp1Subscriber
So these are lights to see with, not to be seen by (as you’re off road)
Then doesn’t it depend on if you’re on open moorland or tight twisty wooded singletrack
Personally, I’d always carry a light anyway. What if you need to stop (puncture, mechanical, shop) and then need to get home later than planned?Posted 7 months agoneilc1881Subscriber
Perhaps we need an app that will be linked to lights that detects whether the rider is on or off road, and if it is dark or not, and turns them on and off accordingly.
Additional features could include altering brightness to suit conditions/length of ride, reminders to charge them…
Or you could stick to using a finger and grey matter.Posted 7 months ago
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