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Ravi, Using your numbers, I wanted to get an idea of the cadence needed to go about 16mph in various gears. Thanks, the gearing is very similar to the bikes we have been riding. I did not factor in any pedal assist from the motors and am very happy with my findings. Oh, is a 20 tooth cog...

Did you ever choose a bike? If so, which did you go with?

This looks like a pretty good solution. Thanks.

Your typical ebike console has almost all the information that a bike computer provides, however one item I really like is an easy to read and monitor heart rate display. I typically used to ride my bike to maintain a particular heart rate level based upon what my goals for that day are and...

Thanks Ravi! This answers my questions on the Rohloff hub! Do you have any information on the gearing of the belt drive? I am not sure what the equivalent to sprockets are on a belt..cogs? What is at the motor vs at the hub?

Yes I have. I missed a call from them last night. I posted this here as I know that they often read and reply to this forum. I also read on the Rohloff website that there are various versions of the hub, some of which can take about 120 Nm and others that can take up to 220 something. If the...

First, thanks for the great reference on how to tune the m620! I ask because the new Ultras offer either a Road or Off Road version and other than 750w vs 1000w, and the accompanying change in torque, there is little data on what else changes. I did order the Ultra in the Road version, but...

I found a pretty detailed explanation of how to reprogram the motor, but to be honest I would probably screw it up even if it appears to be simple. Two questions I still have are; the difference between the Road and Off Road version.? The model of the Rohloff hub on the Ultra and if there is a...

I recently ordered the Photon Ultra and will receive it mid May. I am pretty excited about the bike’s setup but know little about the actual details. How did you go about changing the display? Did you order directly from Bafang or from a distributor? I rebuilt the 1000W motor once on the...

I have some question on the different settings available on the Bafang M620 motor. I have built a number of e bikes using the bafang conversion kits in 750 W and 1000W versions. How difficult is it to convert from the Road version to the Off Road version? Besides the difference in available...

I didn't see any mention of the Photon Ultra in the Photon lineup. Is it still available? If so, does it come with a kickstand and rear light?

Does the Photon Ultra have a kickstand?

I went to your URL and did the math. When yo do an apples to apple comparison to a standard chain drive systen, you come out with about 450%. That is fantastic! My mountain bike has a 10/50 gear ratio and that comes out to 500%. But 50 on your granny gear is almost too slow to control going...

A couple of things. First the weight difference without batteries id about 6lbs, with batteries and I am including the extended battery on the Evelo, the Evelo is the heavier bike by about 7 lbs. Now I have not weighed either bike but am going by what I was told. Living in the mountains, my...

The motor is the Bayfang M620 which a number of mountain bike manufacturers are using.

Great point. In checking with Bafang, the M620 is configured to take a chain drive as well as the belt pulley. You are correct fro a cost standpoint in that i would have to have the rear wheel replaced as well as as all the Sram parts. If there isnt the clearance for the chain and derailleur...

I am sure I will love the ultra, but if i end up hating the Rohloff , i will drop back to a chain Sram 500% system an reconfigure the m620 to off road.

Zen Photon Ultra is outfitted with a Rohloff driven by a Bafang M620

No idea, it is a belt driven set up. Zen Photon Ultra.

I agree with most of what you say. Unfortunately at 78, I wanted a step through bike. I didnt find one with a more powerful motor that didnt come with belt drive and some sort of hub. So I had the option really of Enviolo or Rohloff. I just bought the Rohloff bike after a long conversation...