Well, the energy contained in a 32x700c tyre at 60 psi is 2.85 kJ, or 0.8 Watt-hours.
While a turbine attached to the valve could generate power, it wouldn't be practical.
Is riding on unlight country roads at night suicide?
- Thread starter MacLean
- Start date
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Well, the energy contained in a 32x700c tyre at 60 psi is 2.85 kJ, or 0.8 Watt-hours.
While a turbine attached to the valve could generate power, it wouldn't be practical.
Ian H
Ancient randonneur
Most if not all cycling shoes seen to have reflective patches on the heel. Not actually a legal alternative to pedal reflectors in the UK, but in practice as effective.
ebikeerwidnes
Guru
- Location
- Z’ha’dum
I always thought that they might often be more effective
pedals can get splattered by mud but shoes are generally kept cleaner
Also your foot often obscures the pedal reflector but the back of you shoe is pretty much always visible
of course - a proper reflector reflects more light - so there is that!
at the end of the day - I go with both if I can!
ebikeerwidnes
Guru
- Location
- Z’ha’dum
Oh - on another point
my front tyre does not have a relflective strip - is there any paint or stick on strips that can be used to make one without damaging the tyre??
my front tyre does not have a relflective strip - is there any paint or stick on strips that can be used to make one without damaging the tyre??
Poacher
Gravitationally challenged member
- Location
- Nottingham
Just use spoke reflectors instead; they're at least as effective.
classic33
Leg End Member
There was Volvo LifePaint
https://www.cyclechat.net/threads/latest-effort-from-volvo-life-paint.177146/
Disappeared the same year it appeared.
classic33
Leg End Member
At least that one is still being produced.
PaulSB
Legendary Member
- Location
- Chorley, Lancashire
Never seen a pair with reflective patches. Are you sure?
Ian H
Ancient randonneur
A quick survey of mine shows six pairs with, one cheap Aldi/Lidl pair of MTB boots without.
Andy in Germany
Guru
- Location
- Freiburg im Breisgau
cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
reflectives are the way to go . this is a screenshot from my ring at 4.20 am
ebikeerwidnes
Guru
- Location
- Z’ha’dum
No a phrase I expected to hear today
ooooooh - a ring doorbell camera
you should have said!!!
(he said as he dragged his mind out of the gutter)
go on - some of you were also thinking that!!!
cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
completely lost me there, its a ring security camera at the back of the house , taken a couple of weeks ago and you must have a warped mind as i have no idea what your on about .
PaulSB
Legendary Member
- Location
- Chorley, Lancashire
Referring to your post below I had absolutely no idea what you meant by the bit in bold above. Never even occurred to me you were talking about a door bell/security camera or whatever.
I got the "joke," I didn't think it funny but the post from ebiker did at least explain you had referred to a door bell or similar. Until that point I hadn't a clue what "ring" you were referencing.
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