Ravi Kempaiah
Well-Known Member
- Region
- Canada
- City
- Halifax
The new ST5 is here
(Link Removed - No Longer Exists)
(Link Removed - No Longer Exists)
The new Stromer ST5
- Thread starter bluecat
- Start date
Chris Nolte
Well-Known Member
I guess I was all wrong on the belt and pinion. Maybe it was wishful thinking. I have also heard of the challenges with the torque sensor and the belt, but there are definitely ways to do it. Grace started doing it years ago, but that was with the BionX motor and it wasn't quite as advanced as the Stromer.
Looking forward to seeing it in person tomorrow
Looking forward to seeing it in person tomorrow
JoeBurbidge
New Member
Yes, I found the saddle that came with my ST2 S very hard and uncomfortable for long distances. (Although aesthetically, it's beautiful). I replaced it with an old, cheap saddle from a city bike and am very happy with it, actually! It's nothing special but very comfortable! I would never do the same on a racing bicyle, of course...but as I said, riding a Stromer is a very different experience to a normal bike!
PTFC Brian
New Member
Great design for the ST5! If they could have included the Pinion drive, it would been even better (ultra smooth/quiet). I'm sure they're working on it.
The other feature that no eBike has (that I'm aware of), is rapid recharge. If Stromer could get their battery to recharge in 20 minutes, it would make riding long distances a lot of fun, and would eliminate the need for extra batteries. Riding 100 miles per day with max assist could be common. Imagine if we started thinking about infrastructure to rapid recharge on bike routes?
Ravi Kempaiah
Well-Known Member
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- Canada
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- Halifax
The problem is to have good infrastructure to bike 100 miles a day without worrying about getting hit by a truck or a car.
I have traveled fair bit and I was appalled to see the dilapidated bike infrastructure across the US. Only few pockets of safe trails exist but most city roads are not designed with a cyclist in mind.
product development and the social aspect go hand in hand.
I do have some concerns about Stromer though. Once the market reaches a tipping point, if they don't have enough market share, they will be forced to get out of the game. Right now, the sweet spot for ebikes is $2K but Stromer starts at $5K.
I understand they are not making bike for everyone and I really admire their guts for pushing the envelope. They were the first to introduce 814Whr battery when most products were shipped with 400's, they were the first to introduce a working model of digital connectivity (OMNI) but they consistently pushing things forward.
Regarding your point about rapid charge, it is not in the hands of Stromer. If the cell chemistry, welds, BMS can't handle pumping in 100A, then Stromer can not do anything. Ebike batteries have a constraint of weight which is not existent in electric cars.
Most EV car batteries are hidden in the chasis floor but ebike batteries have to blend in and has to be removable. This puts a lot of constraint. I am sure in 5 years, 1hr charging would be possible or the bike infrastructure in certain parts of the world would be such you just swap the battery and keep moving...
Mr. Coffee
Well-Known Member
- Region
- USA
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- A Demented Corner of the North Cascades
I wonder how true that is. There seem to be a lot of boutique manufacturers of conventional bikes that have been in business for decades. I don't see how electric bikes would end up being radically different.
I agree that it will be much harder to have an extensive dealer network as the ebike market consolidates. But lots of companies making both ebikes and conventional bikes seem to be doing just fine without a dealer network.
PTFC Brian
New Member
This is exactly where the conversation should go. Road infrastructure, both highways and interstates, are in great need of replacement. EV's and autonomous vehicles will be at the table to help create the vision for smart road design. As eBike enthusiasts, we need to understand the deficiencies (safety and charging), and work towards a better future. Imagine having the freedom to go on eBike treks on any given week or weekend. eBike technology will continue to improve. Our task should be expanding the opportunities to use them.
Rapid recharge will be possible.
Ravi Kempaiah
Well-Known Member
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- Canada
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- Halifax
Tesla supercharger charges at 400A but the car has something 7000 cells, so at the cell level it is still 1C or 2C current.
On the contrary, ebike has 50-70 cells and charging and discharging at 5C will degrade the cells quickly. yes, the chemistry at bulk level is still not at the point. May be some prototypes exist that can handle huge power density.
Also, most EV's have a dedicated power electronics/ very sophisticated BMS unit that manages a lot of things. Including all that on an ebike would increase the weight and cost significantly.
An ebike under 50lbs with 750whr capacity would be enough for 99% of the applications.
Chris Nolte
Well-Known Member
As promised some photos
bluecat
Well-Known Member
Thanks.
By Swiss law, 1000W is maximum. The upcoming EU law also allows 1000W power. So, the ST5 motor will have 800W nominal and unknown peak power. Furthermore, 48NM will support you. These values are clearly above the ST2 motor.
bluecat
Well-Known Member
By gravity.
The key for the lock is replaced by a button. This button seems to be electric or electromagnetic. It will be activated over the touchscreen. So, you don't have to carry the key with you (to overcome a drive error).
The horn located at a place, where it might be exposed to dirt and water:
bluecat
Well-Known Member
I agree.
Supernova has designed a mount under the M99pro. I've seen a bike with it. Great for acoustic, but looks terrible...
A good Brooks saddle makes a considerable difference. I have a B-17 on my Stromer, but there are other models also available.
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