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This option takes it to about 2.9 and that is great! I will send a note to Ravi and ask. Note sent to Ravi and Zen Sales.

The 2.75 ratio is certainly better, but is it doable? With all the very low gears on the Rohloff and an available 1500watts I dont think climbing that hill will be an issue…it wont be a fast climb but will be doable. Ravi, what do your engineers say about the 55/20, 55/19 or 60/20 options?

Thanks, I see you were way ahead of me. Contractors taking me away as we remodel the deck.

How much does changing from 2.5 to 2.75 help? I can’t change your great spreadsheet on my little iPad. If we have to change the belt and rear sprocket, wouldn’t it make sense to change all three at the same time?

Over the decades I have built and converted bikes to e-bikes so I am aware of what would be the cost and labor involved. That is why my first choice is to modify the 55/22 belt system. Ravi wants me to get the folks in his sales department involved to see what options are feasible given the...

Ravi and I had a informative phone call. While Ravi was adamant about increasing cadence, at 78 years old I am not sure I will ever be able to maintain a cadence of 75 for hours at a time. I guess I have to accept that I am now an old fart and that my marathon days are over. I guess that...

I totally agree. I use the throttle very sparingl. It is great to get started when stopped going uphill. But now I will use it to shift rohloff gears going uphill! ❤️

I was climbing up about a 35 degree hill and wanted to see how it would climb in g5, in retrospect I probably was putting pressure on the Rohloff. I havent had any issues with shifting and will use your sage advice next time I ride home. Yep, that darn hill is on the way to the house.

I am shooting an email to Ravi. Originally I wanted the bike to come with a Sram 11 speed gear set but Ravi talked me out of it. I just took the bike out after 3 cups of coffee to see what it can do by pushing up the power. In g11=17mph, g12=18.x, g13=19.9 g14=21. Now this was at power level...

While this certainly sounds like a great solution, I am a little worried that making this change will void my warrant. The trial period was only 10 miles and I have about 30 miles on the bike now. I will shoot a letter to the president of Zen bikes telling of my desire to go to a 20/60 set up...

All i have here in terms of measuring tools are carpentry focused measuring tapes. I can go into my little town‘s hardware store to see uf they have anything ore accurate or in cm. 20/60 is still 3.0 which is better than I have as far as top soeed us concerned. What do you need pictures of?

1. Chainstay is 19 1/8” 2, Belt is 11m-128t-12ct. 284L-20-0 3. maybe between 1/4-3/8” space to adjust belt 4. chain guard space = 1/2” Bike rear arm = 2”

Just got up and had my coffee. This looks like the answer. Going out to check measurements. Only have inch info but can go to the local hardware store ia few hours to see if they have a cm tape.

The bike has the 5 bolt adapter.

Good question. If we are planning a 50 mile day before we get to the next town to overnight and recharge, I have found that I need to typically be riding the flats in level saving the current draining levels for the climbs or I run out of battery too quick and riding an 80lb bike with no assist...

Scambler, that is pretty consistent with what was happening. If I want about 18 mph on gear 11 at a cadence of 60, what changes do I need to make to the front and rear cogs?

I wasnt counting my cadence on that first ride but found myself quickly being fatigued and working hard to maintain 17 mph in gear 14 and assist level 1.

One thing about e-bike rides up here is that they run into hours vs just a short ride.

She did and rubbed it in!

I am really appreciating this great advice. I just connected up an older bike computer and took the bike for a 15 mile ride. While I did a cadence of 70 several times, my sustained cadence was closer to 60. That comes as no big surprise to me as my 78 year old legs ain’t what they used to be...