Electric bicycles - who buys them?
Discussion
take-good-care-of-the-forest-dewey said:
That is a good point actually. Plastic gears don't require lubrication, which will add parasitic losses to the system. That's probably the reason.
No doubt bosch et SL have run these gears n a lab to 6 figure mileages.
It's also about noise. Or lack of with plastic.No doubt bosch et SL have run these gears n a lab to 6 figure mileages.
Industrial lathes often has plastic and even sometimes wooden cogs and the torque involved there is magnitudes greater than any E-Bike. Yes, metal cogs are normally stronger than plastic ones but that doesn't mean they should always be first choice. There is nothing wrong with plastic cogs in the right situation.
RedWhiteMonkey said:
Industrial lathes often has plastic and even sometimes wooden cogs and the torque involved there is magnitudes greater than any E-Bike. Yes, metal cogs are normally stronger than plastic ones but that doesn't mean they should always be first choice. There is nothing wrong with plastic cogs in the right situation.
Industrial grade polypropylene can also be immensely strong and easily engineered into cogs etc.BIRMA said:
Industrial grade polypropylene can also be immensely strong and easily engineered into cogs etc.
Exactly, generally speaking speed and heat generation is a bigger problem than strength with plastic cogs, but a cog in an E-Bike motor wouldn't be fast enough to be a heat problem.Barchettaman said:
The bloke in Cologne has apparently fixed my Bosch motor (in a day).
3 bearings changed and a new lid (Deckel? Not quite sure which lid he means. Maybe one half of the motor housing).
€120/102 quid inc. postage seems fair. Let´s hope it works!
That sounds fair indeed. 3 bearings changed and a new lid (Deckel? Not quite sure which lid he means. Maybe one half of the motor housing).
€120/102 quid inc. postage seems fair. Let´s hope it works!
Barchettaman said:
Newton472 said:
How many miles are people getting out of cassettes and other consumables ?
I'm just coming up to 2,000 km and am getting some occasional skipping in the highest gear (smallest cog).
Everything else working perfectly.
I swap everything out- cassette, chain, chainring- at about 3.5k km. I'm just coming up to 2,000 km and am getting some occasional skipping in the highest gear (smallest cog).
Everything else working perfectly.
If the smallest sprocket is skipping then adjust the limit screw so it’s inaccessible, maybe?
Certainly can't do without the top gears as I like to go at max speed and overtake 'regular' cyclists...
I hope these start coming down in price soon, they seen massively expensive to me. I've been looking at the Specialized Vado SL 5.0, but it seems to me the business model is take a £750 bike, strap a motor on, and charge £4000, it doesn't add up for me.
One of these new 15mph electric scooters can be had for £400-£500, it seems adding pedals into the mix adds a zero onto the price.
One of these new 15mph electric scooters can be had for £400-£500, it seems adding pedals into the mix adds a zero onto the price.
Not been back, but wanted to thank contributors for their views and opinions.
I ended up buying his n' hers hardtail mountain bikes and they have been awesome. I miss the full suspension of my old MTB, and ride 90% of the time with the power off, but having the boost has opened up some routes that I avoided due to the long steep slopes on the way home.
skinnyman said:
One of these new 15mph electric scooters can be had for £400-£500, it seems adding pedals into the mix adds a zero onto the price.
But a scooter without a battery and motor is less than £100 so adding those items is increasing the price 4-5xConsidering you can pay £2,000 for a “manual” Brompton I don’t think the prices of ebikes are unreasonable
Batteries are expensive. My rough rule of thumb for ebikes was £1k for the bike and ~@1k for the battery as a minimum.
That way you at least get a 1k bike. Anything cheaper in my view would be compromised in terms of components but happy to be proven wrong.
Went for a £2,200 Haibike hardseven 2.5 in the end and it's been brilliant.
That way you at least get a 1k bike. Anything cheaper in my view would be compromised in terms of components but happy to be proven wrong.
Went for a £2,200 Haibike hardseven 2.5 in the end and it's been brilliant.
Slightly o/t but interesting take on escooters vs ebikes…
https://www.micromobilitybiz.com/e-scooters-and-th...
https://www.micromobilitybiz.com/e-scooters-and-th...
funinhounslow said:
Slightly o/t but interesting take on escooters vs ebikes…
https://www.micromobilitybiz.com/e-scooters-and-th...
It's a very sniffy take. https://www.micromobilitybiz.com/e-scooters-and-th...
monthou said:
funinhounslow said:
Slightly o/t but interesting take on escooters vs ebikes…
https://www.micromobilitybiz.com/e-scooters-and-th...
It's a very sniffy take. https://www.micromobilitybiz.com/e-scooters-and-th...
skinnyman said:
I hope these start coming down in price soon, they seen massively expensive to me. I've been looking at the Specialized Vado SL 5.0, but it seems to me the business model is take a £750 bike, strap a motor on, and charge £4000, it doesn't add up for me.
One of these new 15mph electric scooters can be had for £400-£500, it seems adding pedals into the mix adds a zero onto the price.
Meh, it's not a £750 bike to begin with though. Take the E160, something like the T160 is £4K. Bikes have been expensive for years.One of these new 15mph electric scooters can be had for £400-£500, it seems adding pedals into the mix adds a zero onto the price.
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