zro-1
1 kW
Hey gang,
It's been a while since I've posted in here. I've been lurking, but haven't contributed much, for which I apologize.
I'm building a new bike. It's going to be an ultra-minimal single-speed ebike. I'm using a q100h rear hub and a Phaserunner to control it. I chose those primarily for their small size. I also bit the bullet and ordered a spot welder to make my own battery pack which will be a 14s2p pack that fits in a small seat bag. It'll be 51.8V, 7Ah, 20A which is all I need for the q100h and how I plan on using this bike.
The real issue I'm having is figuring if I can set this bike up without anything at all on the handlebars. I definitely don't want a dashboard, and I'd prefer not even having a throttle. So that leaves me to a cadence sensor or a torque sensor BB to run this. The cadence sensor is easy, since they all run on 5v and output within the range of a standard hall sensor throttle. However, since the Phaserunner is using a torque throttle, I'd really like to use a torque sensor on the BB. The big issue is that most of the torque sensors I've found all need something like 8V-12V inputs and have multiple outputs (for cadence, torque, etc). They either need a CA3 or some sort of custom Arduino setup to work with a throttle input on a controller (the Phaserunner included).
The BEAMts looks like exactly what I'd want, but I can't find it for sale anywhere. It's been out of stock on ebikes.ca for a while now.
So while I've been searching around, I discovered that Bafang has a few different torque sensing BBs available and the PA211.32.ST looks like it would work great. Unfortunately, I can't find any info on this BB and I haven't found anywhere to order one to try it out. I submitted an enquiry through Bafang's website, but they expect a minimum order of 1,000. I commented that I just want one, but haven't heard back. I was wondering if any of you here have seen one in person or know where to get one.
These are the specs for the BB torque sensor:
Any input you guys may have would be greatly appreciated. Also, if you know of a source to get one, I'll be happy to be the guinea pig and I can update this thread with how the sensor works (or not) with a Phaserunner.
It's been a while since I've posted in here. I've been lurking, but haven't contributed much, for which I apologize.
I'm building a new bike. It's going to be an ultra-minimal single-speed ebike. I'm using a q100h rear hub and a Phaserunner to control it. I chose those primarily for their small size. I also bit the bullet and ordered a spot welder to make my own battery pack which will be a 14s2p pack that fits in a small seat bag. It'll be 51.8V, 7Ah, 20A which is all I need for the q100h and how I plan on using this bike.
The real issue I'm having is figuring if I can set this bike up without anything at all on the handlebars. I definitely don't want a dashboard, and I'd prefer not even having a throttle. So that leaves me to a cadence sensor or a torque sensor BB to run this. The cadence sensor is easy, since they all run on 5v and output within the range of a standard hall sensor throttle. However, since the Phaserunner is using a torque throttle, I'd really like to use a torque sensor on the BB. The big issue is that most of the torque sensors I've found all need something like 8V-12V inputs and have multiple outputs (for cadence, torque, etc). They either need a CA3 or some sort of custom Arduino setup to work with a throttle input on a controller (the Phaserunner included).
The BEAMts looks like exactly what I'd want, but I can't find it for sale anywhere. It's been out of stock on ebikes.ca for a while now.
So while I've been searching around, I discovered that Bafang has a few different torque sensing BBs available and the PA211.32.ST looks like it would work great. Unfortunately, I can't find any info on this BB and I haven't found anywhere to order one to try it out. I submitted an enquiry through Bafang's website, but they expect a minimum order of 1,000. I commented that I just want one, but haven't heard back. I was wondering if any of you here have seen one in person or know where to get one.
These are the specs for the BB torque sensor:
Any input you guys may have would be greatly appreciated. Also, if you know of a source to get one, I'll be happy to be the guinea pig and I can update this thread with how the sensor works (or not) with a Phaserunner.