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Get the largest possible gear on the rear.

If you have the part #/ model#, brand, etc. sometimes you can do a Google search and find it at some of the online dealers quicker than sourcing through the manufacturer.

4-5 miles per hour on a 13% grade is very respectable. Anything under 3 m.p.h. puts you at risk for falling over if you do not pay attention. The other higher grades should be achievable once you get the lower gearing and build up your stamina. I have a Trek Allant + 8s with the 625 battery...

13%...17%...No wonder you have been having issues. Any reduction in gearing is going to help. My bike has up to 85nM available and is specifically geared for steep grades. While I would be able to climb your hills it would take extra effort, even with the extreme low gearing and torque. If...

The suggested inflation for my 2.0 Schwalbe tires is 35-60 pounds. I run them at 40 p.s.i. and they ride like a Rolls Royce.

Did you try Amazon?

The premium highest rated tire only comes in 2.00 x 27.5. There are 5 other tires in 28 inch. I am very satisfied with the 2" tire. This tire is the highest rated for Road Grip, Protection, and Durability. If you do not go with Schwalbe, at the least get an E-50 rated tire. With a heavy...

What size do you need? I purchased the 27.5. Schwalbe Marathon E-Plus tires. Awesome tires!

Schwalbe Marathon E-Plus tires. 4385 miles and showing no tread wear. One flat due to a huge screw.

I purchased a pair of winter cycling pants 15 years ago from a company called Aerotech Designs. They are an American company located in Pennsylvania. Nearly all of their products are made in the USA. The pants I purchased have worn like iron. They are one of the few companies that will do...

So.....The low temperature Feb. 2022 in Lublin was 21F. Some lows Feb 2022 in Int. Falls MN was -32F, -37F, ,25F, -36F, etc., etc.

This bike calculator from Bosch is extremely accurate. I used it to determine which ebike to purchase and it has proved to be very close to actual results.

Most battery manufacturers advise not to charge batteries outdoors in temperatures below 30 something. For Bosch that temperature is 35. It is okay to "run" the battery in temps below freezing. I have kept extensive records since purchasing my ebike. The batteries range is effected by colder...

Don, According to the online grade calculator I used the average gradient from the bottom of your climb to the top is 2.94%, not 29%. There could be sections in the road that are a little steeper than the overall percentage of 2.94%. Example, many roads in the Tour de France have an overall...

Your only viable option is to see if it is possible to change the front chainring and rear cassette to improve your gear ratio to improve your ability to climb hills. I would contact the manufacturer and find out what your options are for changing the gear ratio. Changing the motor would be...

Thanks for keeping us posted. It would seem the priority is to be able to climb your grades, not necessarily your top speed. If you can achieve a moving average of 13-15 m.p.h. that should be more than adequate. Most importantly, your knees will appreciate the lower gearing. Which gear...

So, at a hypothetical top speed of 20 m.p.h., using a 36 tooth gear on the front and 23 on the rear, what is the predicted cadence?

So...I still believe your issue with climbing hills is only partially caused by your physical abilities. The chart you posted indicated some of your hills were around 10% gradient. Your motor peaks out at 60nM. It might be able to have the software boosted to upgrade the torque. Some Bosch...

As was said earlier, properly geared, your bike should handle your hills. When I had regular bikes, proper gearing was paramount so I was to be able to climb hills in my area. In your region, the gradients are much more severe. With a road bike geared for speed there would be no way to climb...

Looks like you have some climbs that approach 10%. That is a substantial grade to overcome if your gearing is too high. Think what would happen if your were stopped at the bottom of a hill in your car and attempted to accelerate up the hill from a standing start in third gear (out of maybe...