nowholeself
1 W
I've just completed a BBSHD build with a good number of engine, wiring, and controller mods. I like it. But I have three issues. First, I can't run full throttle as long as I'd like without generating an alarming amount of engine heat. Second, I'd like the engine to fit into the triangle rather than hang below the bike, for obvious reasons. Third, the BBSHD is needlessly heavy. Like, it's just bizarre to me that Bafang didn't make a little more effort to shed weight in some obvious places.
So, my plan is to make my own casing and drivetrain design. I'm currently looking at two engines that fall within the performance/weight range I'd like: the Astro 3220, and the Revolt RV-120Sh. In terms of performance and weight, the Astro looks superior. But I've read it heats up easily. Also, I'm unfamiliar with the controller technology. Apparently, you can easily blow these things with a voltage spike. Can anyone tell me whether or not my concerns about the Astro are warranted? Specifically, is the heat generated by the Astro engine something to worry about? Or can it run hot all day long without issues? And is using a sine-wave controller like the ASI BAC series possible and preferable? And how do the Revolt engines perform in comparison? Thanks in advance to anyone who can offer advice. This forum was so helpful during my first build.
So, my plan is to make my own casing and drivetrain design. I'm currently looking at two engines that fall within the performance/weight range I'd like: the Astro 3220, and the Revolt RV-120Sh. In terms of performance and weight, the Astro looks superior. But I've read it heats up easily. Also, I'm unfamiliar with the controller technology. Apparently, you can easily blow these things with a voltage spike. Can anyone tell me whether or not my concerns about the Astro are warranted? Specifically, is the heat generated by the Astro engine something to worry about? Or can it run hot all day long without issues? And is using a sine-wave controller like the ASI BAC series possible and preferable? And how do the Revolt engines perform in comparison? Thanks in advance to anyone who can offer advice. This forum was so helpful during my first build.