Your thoughts and experience are greatly appreciated! My feelings about the gear sensor have not really changed from that article, I still think that it should be bundled with the BBS02 from the get-go. I installed a gearsensor on my BBSHD and BBS02 and it makes a world of difference. Hopefully that will last a bit longer than 2 weeks. idea. It is the only original shift sensor available on the ebike market. Is it a must have? Anyway, I am working on a Power monitor for bafangs. I asked Gearsensor themselves directly, but got no response. Change ), You are commenting using your Twitter account. Are there different gear sensors for IGH and Derailers? 1 BBSHD Bafang motor 3. I have noticed that the motor immediately cuts out if you backpedal a slight amount. An email will be sent to the address below containing a link to verify your email address. ( Log Out / So much better. Why didn’t I think of that? Meh. It sends a signal to the controller to cut motor power while shifting gears. The BBS02 went through a lot of upgrades to fix various issues, and in its current form I still recommend it as the best 1000W mid drive. While there are differences between the IGH and the derailleur versions of gear sensor, between different vendors they are exactly the same product.Â For info on gear sensor dealers in your country, click here. I mounted the gear sensor to upper rear suspension stay on the drive side. Not for sand and snow, but for commuting or exercise or simple joy. Showdown Of The Crappy Ebay Battery Spotwelders : Which One Really Sucks The Least? Is The Gearsensor A Total Waste Of Money Or A Must Have? So I’m wondering. Great article as always, Karl. 99 % of my riding is pedalling, while at the same time feathering in the specific assist I feel the need for, with the PAS at 0. Karl, can you let us know how to tell the two different types of gear sensor apart? Until very recently the only place stateside you could buy a gear sensor stateside was from Lectric Cycles for $75 + $15 shipping here. The BBS02 sort of distorted everything. Other IGH like many more delicate 7 or 8 speed IGHs will absolutely self-destruct if they are shifted under the full 1500W load of a BBSHD, so a gear sensor would be absolutely mandatory in that instance. It will not work with a Strumey-Archer 3spd IGH control. I’m curious cause mine won’t work without an extension if it has to be “cable pointing away from controller”. 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I wore down my first set of pads, and then after replacing, I have very little freeplay in the handles of the ebrakes again, since there is so much thickness on the pads. What do you do with the cable if you don’t want to run a gear sensor? I just got mine, and the gear-shift power-interrupt was the only remaining question. I’ve used ebrakes to cut the power to shift and it works well. Perfection be achieved without gear shift sensor. This is why when you have a front derailleur and you shift under load on the front ring that is when the links in the chain will generally break apart. Check out Karl’s special sauce on the programming page. The controller adjusts the motor’s torque or power according to the information input and adjusts the assist rate. “The gear sensor senses when you are shifting and what direction you are shifting in and it cuts the power for an appropriate period of time for the shift to complete.” I could easily use them like a clutch, there was enough freeplay that I could pull the handle without any braking actually occurring, but it would cut out the motor so I could shift. I am certain it accesses the E-brake power cutoff circuit, but I’ll have to dig into that (someday soon) to be sure. What has happened is that Bafang has finally woken up and smelled the coffee and is not including a dedicated gear sensorÂ plug on the BBSHD controllers when drive units are ordered with that plug installed. That canât last. The pedal assist uses a cadence sensor to determine how much power to assist with. But DIY in the US seemed to become a huge force in the US on the strength of the BBS02. I don’t know. We provide controller rubber seal for BBS01B or BBS02B controllers.. A must for center-motored e-bikes! Zip tie it to a tube and forget about it? Please do not use packing peanuts. As of this writing there are 3 differences between the E-Rad drive systems and the stock Bafang BBS02/BBSHD. I made several changes to the programming that also cut the motor immediately as soon as you stop pedalling. There are so many opinions out there about this Gear Sensor. This we have done by changing the parameters in the gearsensor in order to optimize the feeling from gearsensor function in combination with different shifting systems. You can hook up a gear sensor to either ebrakeÂ cable hookup on the BBS02 or BBSHD and it will work just fine. Hmm, Seems like I pretty complicated system. It will void your warranty, but it’s well worth it. I have beaten the crap out of my 3 speed IGH’s and shifted them constantly under load without any issues. As of about a month ago you could order a gear sensor from Paul at em3ev in China as a $50 add-on to a BBSHD, but I can’t find aÂ listing for the individual gear sensor anywhere on his website. Send an email directly to firstname.lastname@example.org and post the answer back here so we all know the right answer. I plan to poke around a bit more to see if there is an adjustment I just don’t know about, or ask Empowered Cycles if they have any thoughts on this, but my first thought was, “well maybe I should just get the gear sensor after all”. Can send you some pictures, if you interested. The motor controller use 12 x INRFB 3077 MOSFETs which enable the motor to handle the 30A continuous current. I think it hurts the ebike shops because the hard shifts are not a selling point on a test ride. I don’t own an iphone, but sure send me pictures. Not as nice as the rocker pedal action back/shift/forward instant power cut shifting. Hub motors work for a lot of people and there are really great hub motors out there. Will it integrate seamlessly with my BBSHD\BBS02? Accell is pushing this, and they pushed the wattage limits and wattage labels in California. But high power DIY e bikes with mid-drives are the standard in the US. Gearsensors should really be mandatory to get the full enjoyment and performance out of a mid-drive. You’ll be $55 richer for it, but hey it’s only money right? Here's how you can do it: Both sensors need to transmit this information to the controller. 4.4 out of 5 stars 46. 1 custom bottom bracket adapter 7. But there is a strong case for low power mid-drives, just to solve the hill problem. 1 Giant Defy 2013 road bike - bottom bracket removed by bike shop 2. If it is under warranty, Bafang will offer repair or replacement for free. 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