Well between 15 and 20 million regular bikes are sold each year in the US as of 2019 numbers, versus maybe 500k to 600K ebikes per year now in 2020. Supposedly, the 'Big 4' sell around 40 to 50% of that 15 to 20 million. I would be very shocked if the "Big 3 or 4" collectively sell more than 10% of the number of ebikes sold each year. Too, they are primarily selling ebike models that are mid-drive motor based, and with majority of their models priced over $3000, so they are not heavily pursuing the lower priced part of the ebike market ( although notably, Trek recently came out with an entry level Townie with a rather weak 250 watt hub motor - head slap , lol), similar to how these "Big 3 or 4" aren't generally pursuing the low end price points of the regular bicycle market. PS. (Trek, Giant, and Specialized are the so called "Big 3" but number "4" can bounce around from year to year as to who that may be)
The good news for the ebike category is that an estimated 80% of the US bike riding population has never ridden an ebike ever. As the technology continues to rapidly evolve, a potential bike rider, should be asking the question after riding an ebike, "why would I ever go back to riding a non-electric bike?", since a lot of ebikes are so easy to pedal without running the electric assist. An increasing number of my customers report they are riding their ebike in zero assist a lot of the time, to get their weekly regimen of exercise, and then only add in the assist when they really want it or need it. And even more are reporting they are starting out with e-assist most of the time, but then increasing their endurance and lowering the amount of assist they use over time, and definitely improving health while also reporting they are losing weight. They all say they ride much more than they ever did when or if they were regularly riding a regular bike before their ebike purchase.
The health part is what I love to hear the most about the increasing use of ebikes overall. Over the past 30 years,so much of our society has become all about being sedentary and sitting (whether its in front of your PC, now working from home, sitting in your car, sitting in your backyard on your super decked out patio or pool area), or on the couch using your Ipad or Iphone or even watching the good ole TV)
I'm hoping the use of e-bikes becomes a secular trend, and not just because I own an ebike shop, but because our societal costs of being out of shape, and continually sky-rocketing health care costs have become a national crisis. It affects us all immensely, as even if you are in great physical health, in some way whether directly or in-directly, societal health care IS affecting your life-style in a not insignificant way. (sorry, my enthusiasm for the immense impact that I believe e-bikes can have for everyone, individually and our society collectively, tends to move me onto these occasional tangents... I guess some would say its become my passion as I approach the age of 60...or my 'mid-life' crisis lol)