Let's talk Zen Photon Pro display settings...

[CincyKid]

I know there are 3 different settings you can access via the display: Eco, Boost and Sport

Each has their own PAS assist level 1-5.

Have you done any speed tests to compare each of these? How long can you ride each of the highest PAS settings in each mode?

Curious about this.

I will be doing my own tests very shortly. Mostly I run around in Eco mode via PAS 1-2. I have also tried running Boost mode in PAS 2 and it freaking flys! 18-19 mph average with an 85-95rpm cadence.

 

[CincyKid]

Okay. Did my own test.

Sport is definitely fastest at PAS 5
Eco came second fastest at PAS 5

Boost was actually slower at PAS 5

I also found myself spinning out near 26mph, both up and down hill. I call spinning out exceeding 115rpm cadence. My legs and heart rate could both handle more effort but I had no more gear to give.

The photo below shows the data. Sport is the first data line. Boost 2nd. Eco 3rd.

I guess a new chainring will give me more gearing. Probably take some tweaking to the belt.

Note: My weight for this test is 300lbs. No discernible wind. Smooth road. Tires at 45psi. Front fork locked out.

 

[Blunoser]

I am wondering if you have an adjustment issue with your hub maybe. With a 55t front, 22t rear and 1.9 overdrive that should translate into 55/11ish gearing. That should allow a good 30 plus at 115 cadence. I am assuming you have the Ananda/ Enviolo drivetrain.

 

[CincyKid]

I am wondering if you have an adjustment issue with your hub maybe. With a 55t front, 22t rear and 1.9 overdrive that should translate into 55/11ish gearing. That should allow a good 30 plus at 115 cadence. I am assuming you have the Ananda/ Enviolo drivetrain.

I would think it would be able to go a bit faster at that type of cadence as well. I have no idea what you mean by 1.9 overdrive and/or hub adjustment. Do you mean the Enviolo itself?

 

[Blunoser]

Yes, I am talking about the Enviolo hub itself. It has a 380% range( it goes from 2 underdrive to 1.9 overdrive) this would be a cassette range of 38-10 on a chain drive bike. With your rear sprocket of 22 teeth, it means about a 44(22x2)-11.5(22/1.9) tooth range. Your front sprocket is 55 teeth, so top gear would be equal to a 55/11 ratio or so. That is similar to a fast road bicycle top gear(typically 52/10 I think) and should be capable of 28 plus mph@ 115 rpm. Enviolo has a few videos on their site and one shows how to check if your hub is making it all the way to "top gear", it might be as simple as a cable adjustment if it is not.

I am weeks away from receiving my bike, but can confirm top speed once I have it. In the meantime perhaps Ravi and team can advise you on the expected speeds in top gear at various cadences. My math might be off but they would be far more informed as to real life data. After all, they designed and built it. If their numbers don't match yours then it is safe to assume you are not reaching "top gear".

 

[Blunoser]

Well I just got back from a spin on my MTB 26" tires(no motor) and did a quick test on a downhill section of the trail. My bike was in a 42t front, 15t back cog and I spun up to 115rpm. According to my computer I hit 40kph(25mph) during that sprint. My computer is cheap, so it might be off by a little but still... Your gearing should be equal to 55-11.5 so much taller than my bike. Something is not adding up. I know that the Enviolo is only~84% efficient but I don't know how much of that is slip and how much is just added friction. I'm curious, especially as I'll soon have the same bike. Are you sure you're hitting 115 rpm?