Trail Cruiser
Well-Known Member
I noticed I get different degree of work out from 3 different e bikes. I used to ride a regular bicycle to school in my high school years, and continued to ride a bike in college. Now that I am 50 (and not as energetic anymore) but I still want to maintain a relatively high speed of 18-22 MPH. I wanted to have a semblance of non-ebike feel (or "natural feel"). Each of of the 3 have their prose and cons.
Bike A, 500 watt DD hub (Izip Dash). I can choose whatever gear and cadence regardless of speed and assistance level. It felt "natural" and I can have a good work out since I can increase my cadence above 100 RPM. One drawback is when I want to cadence above 100 RPM at PAS 1, the torque sensor sometimes is not sensitive enough resulting to "surging" since the motor assist comes and goes. My target cadence is near 100 RPM since it gives me a good work out.
Bike B, 350 watt mid drive (Raleigh Tekoa). The motor feels very gutsy, and it has a subtle sweet turbine-like sound when the motor comes on and off. It, noticeably, has more miles per battery charge compared to bike A. The drawback is the power assist tapers down above 80 RPM. So I usually finish my 25 mile ride and still not have a drop of sweat since my cadence barely goes beyond 85 RPM. For my kind of riding, it does not feel natural since I want to cadence from 80-120 RPM. With this ebike my cadence drops to 70 or less after upshifting and I feel that I am not contributing enough forward push to the ebike.
Bike C, 1,000 watt mid drive (Bafang BBSHD) The motor does not kick in as abruptly as Bike B but the power assist is sustained and does not taper off even above 130 RPM. I can pedal at any cadence and it is not limited by the motor cut-off. It feels very natural to me. I can choose the lowest assist level and cadence above 100 RPM to save the battery and have a great work out at the same time. It felt the most natural to me (no surging). The drawback is that the whole ebike is heavy since it is retrofitted to a full suspension mountain bike. This bike is more fun and provides more exercise than Bikes A and B.
Bike A, 500 watt DD hub (Izip Dash). I can choose whatever gear and cadence regardless of speed and assistance level. It felt "natural" and I can have a good work out since I can increase my cadence above 100 RPM. One drawback is when I want to cadence above 100 RPM at PAS 1, the torque sensor sometimes is not sensitive enough resulting to "surging" since the motor assist comes and goes. My target cadence is near 100 RPM since it gives me a good work out.
Bike B, 350 watt mid drive (Raleigh Tekoa). The motor feels very gutsy, and it has a subtle sweet turbine-like sound when the motor comes on and off. It, noticeably, has more miles per battery charge compared to bike A. The drawback is the power assist tapers down above 80 RPM. So I usually finish my 25 mile ride and still not have a drop of sweat since my cadence barely goes beyond 85 RPM. For my kind of riding, it does not feel natural since I want to cadence from 80-120 RPM. With this ebike my cadence drops to 70 or less after upshifting and I feel that I am not contributing enough forward push to the ebike.
Bike C, 1,000 watt mid drive (Bafang BBSHD) The motor does not kick in as abruptly as Bike B but the power assist is sustained and does not taper off even above 130 RPM. I can pedal at any cadence and it is not limited by the motor cut-off. It feels very natural to me. I can choose the lowest assist level and cadence above 100 RPM to save the battery and have a great work out at the same time. It felt the most natural to me (no surging). The drawback is that the whole ebike is heavy since it is retrofitted to a full suspension mountain bike. This bike is more fun and provides more exercise than Bikes A and B.
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