Hmm, it depends how you define leisure. For example, what about riding to the pub for a pint? Or riding to the Rugby club with the boy in tow? I'd define those as Utility.
In reality, if guess I'm a 50/50 because I use my bike a lot for transport to and from my leisure activities.
Pedant alert!
172,000 cal = 172 Cal (aka Kcal) = fun sized Mars Bar.
The food industry have somehow gotten away with calling 1000 calories a Calorie. (Note the capital letter).
Cheeky F#ck3rs.
I don't think the OP has bought a bike, I think he has a kit.
Polish (I'm guessing) is not a language I speak so I can't tell much from the link - can you give is all some more details? Photos will help a lot....
BMSBattery will lace a BPM into a 20" wheel for you. The 250w one should be legal, although I don't know about laws on your Mediterranean island.
If you chose the 201 RPM one, It would climb Everest (although slowly - 12mph ish). The 328 will go faster - 20 ish if you de-restrict.
30 amps through a mini blade fuse is too much, regardless of what size fuse - I have seen the holders melt at 18 amps. Full size blade should be OK.
I wonder what type of SLA's you have. A picture would help. It could be that you have the ones designed for UPS's and other standby applications...
Fixing a puncture at the side of the road should be a 'get you home' repair. My preferred method is spare tube and puncture repair kit.
20 psi with a small/cheap/light hand pump is all you should expect.
If you use puncture resistant tyres, its only gonna happen once every 2000 miles or so.
Roughly speaking, number of sprockets will give you the answer:
7 or fewer: Freewheel
8: probably Cassette
9 or more: Cassette.
you have 8 sprockets, most likely to be cassette. If you have more than 8, almost certain to be cassette. 7 or less probably freewheel.
The chain and sprockets tend to wear together. I have had problems in the past that were only solved by a new chain & sprocket at the same time. I could not see any wear, but changing both solved all the slippage problems, and also made the gear changes better.
I don't tend to get as many...
I don't know how much protection they offer a cyclist, other than from snipers.
I guess that protection against missiles means an impenetrable helmet, while a cycle helmet is very much designed to be destroyed on impact, protecting the skull.
The point is, that electricity cost is tiny compared to the other costs.
Let's say you ride 20 miles a day, 5 days a week, over 3 years. That's 15000 miles,
And 780 charges.
Say you buy a £1000 bike. After 3 years it nearly worthless, so we will write the cost off. The battery will be...
In reality the cost of electricity is irrelevant.
If each charge cost's 8p (worst case), and you charge it 800 times, you have spent £64.
You have also exhausted the battery life, and completed many thousands of miles. The bike is now worthless.
The capital cost far, far out weighs the...