My 36v 500w BBS02 has now covered over 1000 miles. I've ridden all kinds of roads and trails and am now happy with my re-programming of the controller as per earlier posts.
My controller is set to limit current not limit speed, hence the motor is free to spin as fast as it can according to the load.
My findings are that the motor likes a relatively fast cadence of 90+rpm. My cadence sensor indicates that my average cadence is between 87-93 rpm depending on how hilly or technical the trail/route. I pedal quite fast compared with some I ride with.
I'm keen to make sure that the motor is operating at as near to maximum efficiency as possible, which should translate into to greater range and battery life. On searching the web I found the attached relating to the BBS02 36V 500W unit. It seems that the motor is wound/geared to produce maximum power under load at 112 +/- 6rpm.
It seems to me that using the bikes gearing efficiently is an important consideration. I currently run a 9 speed 11-34 cassette which is fine for most easier trails and hills under 20% gradient. I do however find that some of the ratios are little too widely spaced and on rare occasions I could do with a higher ratio bottom gear.
Looking at what is available, switching to 10 speed is an option, but I've pretty much decided to go 11 speed 11-40t. Does anyone have any experience of running 11 speed with their BBS02?
My controller is set to limit current not limit speed, hence the motor is free to spin as fast as it can according to the load.
My findings are that the motor likes a relatively fast cadence of 90+rpm. My cadence sensor indicates that my average cadence is between 87-93 rpm depending on how hilly or technical the trail/route. I pedal quite fast compared with some I ride with.
I'm keen to make sure that the motor is operating at as near to maximum efficiency as possible, which should translate into to greater range and battery life. On searching the web I found the attached relating to the BBS02 36V 500W unit. It seems that the motor is wound/geared to produce maximum power under load at 112 +/- 6rpm.
It seems to me that using the bikes gearing efficiently is an important consideration. I currently run a 9 speed 11-34 cassette which is fine for most easier trails and hills under 20% gradient. I do however find that some of the ratios are little too widely spaced and on rare occasions I could do with a higher ratio bottom gear.
Looking at what is available, switching to 10 speed is an option, but I've pretty much decided to go 11 speed 11-40t. Does anyone have any experience of running 11 speed with their BBS02?
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