Well anyone who has seen me in my bright orange bobble hat will know that I’m not much into designer labels, more a James May type of the biking world. I’ve been lurking around this forum for a while, dipping into this wonderful world of pedelecs during this time I’ve grown seriously worried about designer labels.
The sort of thing I’m talking about is the information provided by bicycle retailers but in particular pedelec retailers. It would be fair to say that as a potential customer I’ve found that information about pedelecs is next to non existent. The lack of information appears to be quite appalling, some manufacturers don’t even quote a weight for their bike, let alone: what type of battery chemistry is installed, what is the battery performance after 200 charge discharge cycles, what type of speed controller is fitted, what’s the specification of the motor, what type of charger, is this charger supplied, can a second battery be fitted, or a whole host of other things which, to be honest, would be pretty dam useful information to anyone who is going to buy use and maintain a pedelec. Now I’d like to say that all of this sort of stuff becomes clear the moment you walk though a retailers door; the sales assistant steps forward, hands you a marketing brochure (do you find that the word brochure is a bitch to spell?) and quietly and confidently answers your questions. But no, my visits to a cycle retailers have teased out the most appalling half truths and muddled information even on ridiculous things like the colour of the bike we were actually looking at, and you want a brochure sir?, pha!, dream on.
So the purpose of this post is to ask; can we collectively draw up a sensible list of specifications, the sort of things every potential buyer should know. The next step would be to contact pedelec forum’s across the world for their contribution, write a best practice notice for voluntary adoption by the industry and then to lobby the European Committee for Standardization to get these designer labels sorted.
What do you think?, achievable? worthwhile? Or should I just pull my bobble hat down a bit further?
EDIT. As a starter how about.
Frame
size
material
Wheel
size
Brakes
type
Gears
number
type
Suspension
type
Bike
weight
Motor:
operating voltage
type
power
noise at 0.25 kw (pedelec standard test conditions) PSTC
noise at peak kw rating PSTC
Controller
type
operational range
operation
features
Then separate out the battery
Voltage
type
size
weight
capacity
capacity 1 year 250 charge PSTC
capacity 2 year 500 charges PSTC
The battery charger
input Voltage
type
size
output
Motor. To assess Noise, how about a test on a test rig with a friction belt to generate the load. This could be individual results or categorised, less that 60 dB(A), less than 57 dB(A) etc. I don't know, but I'd imagine that motors would all but "silent" at about 45 dB(A) ?
Battery capacity.
I'd propose a standard set of criteria to simulate battery conditions, varying % of recharge/discharge cycles from 50 to 100% and recharge at a fixed rate of x% of the batteries rated capacity.
Battery ageing.
Use battery suppliers projected figures when the battery is charged 250 times a year in accordance with the PSTC.
Now what so tough about that lot?
The sort of thing I’m talking about is the information provided by bicycle retailers but in particular pedelec retailers. It would be fair to say that as a potential customer I’ve found that information about pedelecs is next to non existent. The lack of information appears to be quite appalling, some manufacturers don’t even quote a weight for their bike, let alone: what type of battery chemistry is installed, what is the battery performance after 200 charge discharge cycles, what type of speed controller is fitted, what’s the specification of the motor, what type of charger, is this charger supplied, can a second battery be fitted, or a whole host of other things which, to be honest, would be pretty dam useful information to anyone who is going to buy use and maintain a pedelec. Now I’d like to say that all of this sort of stuff becomes clear the moment you walk though a retailers door; the sales assistant steps forward, hands you a marketing brochure (do you find that the word brochure is a bitch to spell?) and quietly and confidently answers your questions. But no, my visits to a cycle retailers have teased out the most appalling half truths and muddled information even on ridiculous things like the colour of the bike we were actually looking at, and you want a brochure sir?, pha!, dream on.
So the purpose of this post is to ask; can we collectively draw up a sensible list of specifications, the sort of things every potential buyer should know. The next step would be to contact pedelec forum’s across the world for their contribution, write a best practice notice for voluntary adoption by the industry and then to lobby the European Committee for Standardization to get these designer labels sorted.
What do you think?, achievable? worthwhile? Or should I just pull my bobble hat down a bit further?
EDIT. As a starter how about.
Frame
size
material
Wheel
size
Brakes
type
Gears
number
type
Suspension
type
Bike
weight
Motor:
operating voltage
type
power
noise at 0.25 kw (pedelec standard test conditions) PSTC
noise at peak kw rating PSTC
Controller
type
operational range
operation
features
Then separate out the battery
Voltage
type
size
weight
capacity
capacity 1 year 250 charge PSTC
capacity 2 year 500 charges PSTC
The battery charger
input Voltage
type
size
output
Motor. To assess Noise, how about a test on a test rig with a friction belt to generate the load. This could be individual results or categorised, less that 60 dB(A), less than 57 dB(A) etc. I don't know, but I'd imagine that motors would all but "silent" at about 45 dB(A) ?
Battery capacity.
I'd propose a standard set of criteria to simulate battery conditions, varying % of recharge/discharge cycles from 50 to 100% and recharge at a fixed rate of x% of the batteries rated capacity.
Battery ageing.
Use battery suppliers projected figures when the battery is charged 250 times a year in accordance with the PSTC.
Now what so tough about that lot?
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