How Strong Is The Friction Resistance for Indoor Exercise Bikes [DMASUN]

Friction resistance for indoor exercise bikes can be very strong; however, it is hard to measure the resistance levels. On the other hand, for magnetic exercise bikes, we can choose the resistance/tension level, but the resistance may not be very strong as per my experience. Disclaimer: All opinions expressed are solely my own. I am not an affiliate or associated with the products or sellers in anyway. So, if there is any problems with your products, please contact the seller's customer service.