There is a reason some of the top bikes are using this motor, pure power 160 NM equal 118 foot lbs. of torque, the Bosch is a very good motor but at only 75nm of torque that is only 55 foot pounds of torque, and really it's designed for the European market not the North American market. If you want to climb grade with weight you are going to be limited at some point. The bikes that are changing to the Gates Drive system have done so because aggressive riders that push this motor to it's limits are busting chains like crazy, one customer busting 5 within a year. Basically if the motor is tuned to 1600 watts plus, your chains life will be greatly reduced, if you are pushing it. The bikes that are using chains seem to be using KMC Ebike specific ones. As well Bafang knows this motor is good but it needs further software tuning, I was just watching a video from their factory, where they specifically had riders going out testing different software configurations to improve that aspect.
The list is by price highest to lowest, it's up to each person to discover what the best value is for them, links provided.
#1 Watt Wagon-Cross Tour $7299.00
Of note Titanium frame fully loaded and always improving, fat tire style, they also make a commuter but I wanted to pick just one from each brand.
Watt Wagon Cross Tour
#2 EXCESS From Germany $6965.00
Of note they are a one model only type company, carbon fiber frame with the upgraded G510 Excess controller which I included in the price, that controller is suppose to really improve the tuning.
EXCESS
#3 LUNA Cycle-Apollo $5550.00
Of note Carbon fiber frame with probably the very best battery of all these Ebikes 52V 21Amp/hrs with upgraded cells, batteries is their specialty, so this should be of no surprise, also they have also tuned their G510 to higher specifications.
LUNA Apollo
#4 FLX - Blade 2 $5269.00
Of note 2020 model has changed the frame and drive train, looks very good, I took the fully loaded price, as that is what I would buy.
FLX BLADE 2
#5 Biktrix Juggernaut Ultra 1000 $4229.00
Of note I put the upgrades in, they have had more time with this motor as they were one of the first to get it to market, getting more economical now for price under $5K
BIKTRIX Juggernaut Ultra
#6 FREY- EX PRO $4010.00
Of note this bike has duel 48 volt 14 amp/hr batteries one inside the tube and one outside, the ultimate long distance runner.
FREY EX PRO
#7 M2S Bikes All Terrain Ultra FS - $3499.00
The only reason it beat out the one below is because it has 29 reviews average 5/5 stars which I felt was worth capturing the 7th spot.
MS2 ULTRA FS
#8 Volton- A-Trail EMTB -$3499.00
Used the upgraded motor package to get to this.
VOLTON A TRAIL EMTB
#9 Rize - RX - $2799.00
Just changed from Sparks and re-branded to Rize, a very thrifty price for what you actually get.
Rize RX
#10 BPM F-1000 - $2395.00
This is the most economical of the bunch.
BPM F-1000
I know there are more out there, but I think this is a good list with high to low prices.
Edited in a #10 as per the posts below, top 10 sounds better anyways.