I wish you were working with Biktrix, so that we could get a 1000W (1500W peak) option on the Super Commuter, like we can now with the Juggernaut.
The Juggernaut is limited to a top speed of 50 km/h (which can be reprogrammed from the display), which is the residential speed limit in Edmonton, Alberta.
I actually can only easily reach this speed limit with the throttle (Pedaling at level 5 assist gets me to about 32 km/h); the bike maintains 50 km/h at 500W, which extends battery life.
I like the 1500W peak to get the full 160Nm of torque for steep hill climbing, and good acceleration.
The motor handles this power from any gear, even if I forget to downshift, and go full throttle in high gear from a standstill.
I keep hearing that the Rohloff hub is best for handling increased power, so it is a bit of a shame not to use it to its full potential.
It's not crucial, but I like that Biktrix offers 500W (You might also consider a 500W option to be street legal in Canada.), 750W, and 1000W (peak 1500W) options; I would trade the power for less weight and better design (such as mounts for multiple spare batteries) however.
The Juggernaut is limited to a top speed of 50 km/h (which can be reprogrammed from the display), which is the residential speed limit in Edmonton, Alberta.
I actually can only easily reach this speed limit with the throttle (Pedaling at level 5 assist gets me to about 32 km/h); the bike maintains 50 km/h at 500W, which extends battery life.
I like the 1500W peak to get the full 160Nm of torque for steep hill climbing, and good acceleration.
The motor handles this power from any gear, even if I forget to downshift, and go full throttle in high gear from a standstill.
I keep hearing that the Rohloff hub is best for handling increased power, so it is a bit of a shame not to use it to its full potential.
It's not crucial, but I like that Biktrix offers 500W (You might also consider a 500W option to be street legal in Canada.), 750W, and 1000W (peak 1500W) options; I would trade the power for less weight and better design (such as mounts for multiple spare batteries) however.
I assume he is accompanied on his trips by people who will supply him with fresh batteries, but I would like to see a setup for making these kinds of trips alone,
The Juggernaut has a 1008Whr battery that weighs 11 lbs with estimated 70-100 km per charge (estimated recharging of 80% in 2 hours). I would like to travel Edmonton to Calgary (about 300 km). With the Juggernaut, this trip could potentially be done with 2 batteries and 2 chargers with one stop halfway.Thanks for sharing your thoughts, Mark!
I get where you are coming from. The watt ratings on motors are tricky.
What really matters are:
- range/kwhr,
- max speed
- how quickly it gets upto speed
and in the current setup, it will haul a 135Kg human + luggage without much problem. It has the Boost hub that is found on high-end eMTB and the Titanium frame is stiff yet very light. Motor + Rohloff combo has no problem maintaining 45kmph top speed all day long.
This is precisely the reason why we have 880whr battery + Grin satiator charger. It charges the battery at 7A current. So, 0 to 80% in 2 hours.
I have done LOTs of long distance trips and what you need is a charger like that and it eliminates the need for spare batteries. Let's say you do 80kms in the morning and stop for lunch/rest (you don't want to pedal soon after a meal), that will give you another 80kms of range in about 2 hours.
There will be an upgraded battery of 1250 whrs in about 2 months and with that you absolutely don't need spare batteries. You could do 100kms in the morning + break for lunch/charging + 100kms in the afternoon. 200kms a day is a decent trip that can sustained for a week or two. And eliminating the need for spare batteries makes room for real luggage that you do want to carry.
The record I am attempting in August it to highlight the efficiency. 750+kms in a day at a cost of less than $1 proves how far the ebike tech has come. I plan to have just 1 spare battery. While I am riding on one, the other will be charging at 7A on the satiator and when it is time switch, you just swap. The whole ride is video recorded, so we know how many batteries are exchanged.
Someone recently set a record on Tesla Model 3: https://cleantechnica.com/2019/07/0...ord-2781-km-1728-miles-travelled-in-24-hours/
They used an ultra fast charger that pumps in 190+ KW of power. It is really amazing how far the tech has come in the last 5 years.
What is the weight of your 880Whr battery
what is the weight of your 1260Whr battery?
estimated recharging of 80% in 2 hours)
I would like to travel Edmonton to Calgary (about 300 km).
I like almost all of the design choices you made here. Titanium frame ,rohloff, large capacity battery, racks, nice front fork(I like that you went for Auron), very good charger. Imo 750w is a very good power output(especially if it can supply most of that power at lower cadences). If the motor is reliable and long lasting at these levels that's great.
A minor issue is that for this price point the battery may have better frame integration. I believe because of titanium frame manufacturing process you have to use tubes(ruled surfaces in general) so how about a rectangular front tube which will give you a nice platform to mount whichever battery you like and probably will be more stable and pleasant to the eye.
I hope this bike will get the attention it deserves. Good luck.
I am reading from the website, "Our batteries charge up to 80% in just 2 hours. This means less time charging and more time riding!" This must be referring to the 11.6Ah battery. Sorry for the confusion I have created.9lbs
11lbs
Your bike comes with 3A charger. I am curious to know how can it charge in 2 hours?
3A charger puts out 3Ah every hour, so if your battery is 21Ah, it would take more than 5 hours. Please educate me here....!
View attachment 35166
It would take 2 days to do it comfortably. If you want to do it in a day, you def need 2 batteries and two 5A chargers, not 3A.
Thank you, Johnny!
Yes, it is a $600 fork and rides pretty well.
Re: integration.....I think one day, we will get there but until then we have proceed slowly and very carefully.
Shaping Titanium is challenging compared to forging or forming Al tubes. Also, welding Ti is not like welding Al tubes.
Great to hear Feliz! It will be a fantastic extended range tour bike. I hope to be able to ride one to the farm eventually (250km distance, mostly completely flat in Saskatchewan). It's appealing to think that in just a few years, there should be an electric gravel bike that could do this on a single charge...
Great to hear Feliz! It will be a fantastic extended range tour bike. I hope to be able to ride one to the farm eventually (250km distance, mostly completely flat in Saskatchewan). It's appealing to think that in just a few years, there should be an electric gravel bike that could do this on a single charge...