Crazy_Lenny

E-bikes are so much fun and at the same time, they are very capable machines.
We hope that people realize the potential of these bikes for commuting and touring.

So, last year we wanted to see how far we can go on an ebike within a day and we managed to clock 310 miles.
This year, we are hoping to set the limit at 410 miles in 24 hours. Doing this on a pure pedal assist only bike makes a strong statement for the potential of these bikes as viable transportation alternative.

InTheRain

Nice video. I don't think I could spend that kind of time in a saddle. I'd need to have several battery swaps. I read that you only had one spare battery on your ride. It seems that you were using a low level of pedal assist to get that kind of range from your batteries. I'll be looking forward to your 400+ mile attempt!

350htrr

I did something like that too when I first got my set up and got 350 miles on 1 charge eco riding using the assist only as much as "needed"... When I used the assist as much as I would normally use it I got 65 miles on 1 charge... So, the only real way to measure how good the assistance is for comparing the distance one can get assistance for, is using the assistance at full, I got 30 miles on 1 charge doing that... Or better yet riding the bike only in power/throttle mode and not pedaling... I got 20 miles on 1 charge that way...

prathmann

In the comments on the YouTube video it's pointed out that he was on his 7th charge by the end of the ride. Only one spare battery, but the batteries were getting recharged and swapped multiple times. So about 50 miles/charge.

2old

350, interesting experiment; think what an individual (maybe you, not me; my butt can only take about six hours) could do in 24 hours with a 28 mph BionX and swapping batteries as needed.

350htrr

Yea, a 24 Hr run is more about the person than the bike per say, so I wouldn't/couldn't do it either... IMO

Crazy_Lenny

You're right. A total of 6 battery charges were consumed. He was on the 7th charge. Approx 50 miles per battery and considering the total elevation (massive 25000 ft of climb), I would say that's a pretty good mileage.

2old

Agree, excellent mileage; also, pretty fit rider; is that a 28 mph bike?

Crazy_Lenny

Yes sir. It is a speed pedelec. Capable of maintaining ~30mph for long distances.

350htrr

Yes it is pretty good, or yes it could be pretty good, or maybe not, That is the "problem" with trying to compare mileage with any kind of pedaling input, or hill climbing with pedaling input... How much pedaling input was there? How much assist was there? We don't know, nobody knows... The only way to compare mileage is motor only, nothing else really counts for anything when comparing how far one can actually go on a charge... JMO

InTheRain

There are two battery options for an ST2 or ST2s - 814wh with a 150 km (93 miles) range or a 983wh with a 180 km (111 miles) range. I'm sure those ranges are calculated on the lowest level of assist, with a 150 lbs rider, on level ground. On the highest level of assist, I don't know what those ranges drop to... 40-50 miles?

https://www.stromerbike.com/en/us/te...st2-technology

I can only compare to my bionx battery 555wh. I'm much heavier than 150 lbs. I could probably get 25 miles on the highest level of assist and draining the battery completely. However, it takes about 5 hours to charge the battery back to 100 percent. I would need more than one spare battery even with recharges. It would be interesting to know how the OP rider managed recharges with only one spare battery. 6 or 7 recharges in a 24 hour period sounds like they would be partial charges... especially with those high capacity batteries (unless fast charge technology is available for these batteries they way that it is for cell phone batteries - up to 80 percent in 30 minutes.)

Crazy_Lenny

The 814Whr battery version was used.
He had few of his friends follow him in a car and they would swap the batteries at 50mile point and wait for him at the destination point while recharging the batteries. The rider would then swap the battery at 100mile point and continue riding.
Actually, this week, he will be attempting a 100mile ride on a single charge while maintaining 18+ mpg avg speed.

A LOT of these has to do with the rider's fitness and the terrain.

2old

CL, 18 miles per gallon is pretty fast :-) --- just kidding

sdwphoto

Just to put things in proper perspective, records of the Veterans Time Trial Association show that 64 year old E.A.Butt covered 439 miles in a 24 hour ride on just leg power .The exact year and date were not included published in a book on bicycles by Eugene A. Sloan published prior to 1970.
I think I'm going to need a bigger battery.

350htrr

Anyways, my point being...

20 miles per charge using electric only is a long ways from 350 miles with a lot of pedaling.
20 miles per charge using electric only, is still a long ways from even 60 miles with normal pedaling.
20 miles per charge using electric only, is acceptable from 30 miles with some pedaling.

That is the way I see it...