Hi, not realy.
I Charge my e-bike with Solar in my Gardenhouse. I have 2 Panels with around 170W. The Voltage what you get is not enough from the standard Panels (19V-21V), you need 2 with serial.
The good Solarcharger makes MPPT, this is a technique for maximum performance of the Panels (Voltage and Ampere for max Watt).
I charge an 12V Battery, this drives my automower, camera, and many others. If ich Charge my e-bike i use an Step up driver with adjustable Current and Voltage. I have noticed that most e-bike batteries are very sensitive to the voltage applied. 41,8V --- with 42,8V Bike says Battery error :-(.
You made many equipment for this way to Charge, I think it is easier to take a charger. Low weight ;-)