My two E-Rad branded BBS02 drive units are my least used ebikes in my garage, and I seem to get by just fine without a gear sensor on my other 10 ebikes. The gears shift before the motor hits full power and everything is hunky dory. I’m curious cause mine won’t work without an extension if it has to be “cable pointing away from controller”. The company focuses on all global e-mobility trends of the future. gearsensor.com / Head of Sales, Co-owner, Warning — Potentially stupid newbee question…. This is the latest version of the gear sensor that works with both IGH and Deraileurs. I own one, haven’t gotten around to installing it yet. Package include: 1 pcs Gear Sensor But high power DIY e bikes with mid-drives are the standard in the US. Need help? Thanks for commenting! I was getting buyers remorse until I read your comments. 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. 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. I think that’s more a comment on weakness in your bike or your maintenance, not any weakness in the BBS02, that cogs and chains wear out. Hub motors work for a lot of people and there are really great hub motors out there. The delay is a little longer, but most people will probably not even really notice the difference. 99. Must I have the dedicated Higo controller plug to use a gear sensor? Bubble wrap the battery and secure it so it won't move during transit. I also feel much better lending my bike to my girlfriend or friends knowing that they probably won’t explode drivetrain things. Gearsensor.com is made in Czech Republic. I don’t need a shift sensor. 1 BBSHD Bafang motor 3. PS: Karl, if you have the opportunity to test out the CS-RK3 at some point and add it to your wonderful IGH review article, please do. It sends a signal to the controller to cut motor power while shifting gears. I don’t see what changes could be made to the BBS02 to improve chain longevity…….. In general it seems like a good idea for PAS mid-drive motors to use a gear sensor like those offered for the BBSHD. Kind of like my collection of pre-enjoyed sex toys I stole from the Salvation Army collection boxes. If you wanted a gear sensor included with a BBS02 for a 100mm fat bike then you would need to spend $1200 for a 750W BBS02 right here. 1 custom bottom bracket adapter 7. If you’re using a BBS02 then get the NCRb cells and if you’re kicking it with the BBSHD then I strongly suggest the PF cells. In the last months we have worked very hard to prepare a new model for BBS motors that will be universal for all kind of shifting systems. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. I just plan ahead and shift into the gear I need to be in before I need it. The controller adjusts the motor’s torque or power according to the information input and adjusts the assist rate. Best regards / S pozdravem In the end, the choice is yours of whether to go with the gear sensor. All Bafang mid-drive motors from Electrify Bike Co have a gear sensor cable coming from the motor controller so they are gear-sensor ready. For more power, you can either run the BBS02 hot, or upgrade to the BBSHD @ a cool-running 1500W. Although both drive units shipped with a gear sensor, chainring adapter, and a Raceface chainring included the pricing is still much more than most ebike builders really want to pay (cause you’re all so damn cheap). Gear Sensor got right back to me: “For this application we do recommend to use GS-D model (for derailleur).”. A must for center-motored e-bikes! The BBSHD is the flagship mid-drive motor from Bafang. I have shift sensors on both my BBSHD and my wifes BBS02 and while I don’t actually use my shift sensor much since I prefer to use my brake sensor in the same way you would use a clutch on a motorcycle but it’s nice having it there. In my experience, a properly tuned and straight derailleur should not break chains even when shifting under load. 1. Cut it off? 2 BBSO2's, 2 HD's. 1 set of Bafang disc brake sensors 6. Soon, new model called GS will enter the market. Thanks for reading. Cheap Electric Bicycle Accessories, Buy Quality Sports & Entertainment Directly from China Suppliers:BAFANG BBS Motor Accessories Parts Gear Shift Sensor/ Hydraulic Brake Sensor/ 6V Head Light/ USB Programming Cable/ Wrench Tool Enjoy Free … Not as nice as the rocker pedal action back/shift/forward instant power cut shifting. Post was not sent - check your email addresses! Speed sensor on lower suspension stay on non-drive side. In my 4 builds, I've never needed a gear sensor, or an e brake. When it comes to shifting under load and understanding the problems it creates with the drive system you have to think about where all the tension is on your drive system. You’ll be $55 richer for it, but hey it’s only money right? Send an email to gearsensor.com and let me know what the answer is. “Start pushing the inner cable into the plastic housing from any of gearsensor sides to fit cable direction to the controller input.” (????). Back pedal a fraction pre-shift cuts power. United States. Any gear sensor bought with a Higo style plug will work with ANY BBS02 or BBSHD on the market. Nice article as always. Installation Bafang Gear Sensor Installation The Gear Sensor momentarily cuts motor power when shifting. 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 a listing for the individual gear sensor anywhere on his website. will be paid by customer. I am certain it accesses the E-brake power cutoff circuit, but I’ll have to dig into that (someday soon) to be sure. Meng. Send an email directly to info@gearsensor.com and post the answer back here so we all know the right answer. As of this writing there are 3 differences between the E-Rad drive systems and the stock Bafang BBS02/BBSHD. Shifting into a higher gear will not generally create much of a problem, but sometimes shifting into a lower gear will. You can also control the motor with the thumb throttle. We provide controller rubber seal for BBS01B or BBS02B controllers.. As the power slowly ramps back up your shift will be silky smooth and chain-crunching free. That’s a great (obvious?) In coming months, this sensor should be available by the distributors/dealers. With a rear derailleur, you can shift under load and it doesn’t make much difference since the bottom chain line is not under tension. I just got mine, and the gear-shift power-interrupt was the only remaining question. The maximum accepted is 20. Accell is pushing this, and they pushed the wattage limits and wattage labels in California. 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. Can send you some pictures, if you interested. Change ), You are commenting using your Facebook account. Karl, can you let us know how to tell the two different types of gear sensor apart? 1 pack of bottom bracket spacers (variable width… This gear sensor you buy from Lunacycles, Lectric and Paul are all exactly the same product. With the stock programming it appears to want to help too much or too less. What has happened is that Bafang has finally woken up and smelled the coffee and is not including a dedicated gear sensor plug on the BBSHD controllers when drive units are ordered with that plug installed. Branding the BBS02 shows how dominant it became in a couple of years. It sends a signal to the controller to cut motor power while shifting gears. ): 4\ 4 \ 4 \ 4 \ 2 – The number of sensor steps before the start up commences. The manufacturer–not so much. I’m switching from a 9 speed to a 7 speed cluster with a beefier chain. Both sensors need to transmit this information to the controller. Thanks for the direct contact. There are no differences between them. Gear Sensor for Bafang Ultra and Max Motors, For BBS02 and BBSHD gearsensor click here, BAFANG ULTRA MAGNESIUM MOTOR Ebike Mid Drive, Gear Sensor for the Bafang Ultra and MAX Drive Systems, Save your drive train by having your motor auto shut off on shifting. This makes your throttle the sole e-bike addition to your bars. I use less power than with the PAS. Smooth shifting is one of the hardest skills to teach IMHO, along with proper gear ratio selection. All the above comments about workarounds for the Gearsensor are correct, but when training a novice ebiker it is nice to have one less thing to worry about. That would mean the direction the cable inside the sensor is moving would affect the pause duration of the motor. There are so many opinions out there about this Gear Sensor. I think. You can even get rid of the Bafang speedometer sensor and speedometer cable and just use the one on your computer or use the Batt Man watt meter from Luna which is a more useful display. I added ebrake reed switches/magnets and the shifter sensor both to my ebike. As of right now Luna Cycles has gear sensors in stock which they are selling here for $50 +$5 for shipping. Is It Wise To Power My 48 Volt Mid Drive System With A 52 Volt Battery, Master Yoda? Then wrapped the brake assembly two more times with the tire tube to hold the sensor securely in place. that doesn’t suck just use ‘Karl’s Special Sauce’. Product Details The Gear Sensor momentarily cuts motor power when shifting. El Segundo, CA 90245 Gearsensor replied that if the P/N on the sensor has a GS-D it is for deraileur and if there is a GS-I it is made for an IGH. Startup Dgree(Signal No. Ravi Kempaiah. However the gear sensor will work with all bafang mid drives by simply connecting it to one of the ebrake cut off switches. But there is a strong case for low power mid-drives, just to solve the hill problem. Connects into one of the brake connectors or, some of the newer Bafang mid drives, an extra 4th cable from the controller. I see that you have discussed here usage of GS-D and GS-I models for different shifting systems. Bafang, one of the leading manufacturers of e-mobility components and complete e-drive systems, has been developing components and complete systems for electric vehicles since 2003. If you are using a CVT like a Nuvinci N330, N360, N380 or N171 or if you are using a Roloff IGH then you will want the gear sensor for standard derailleurs (not the IGH gear sensor). This was my first ebike, so I didn’t start riding it like this initially — when I finally figured out how to ride it like this, I guess I had already worn the brakes down quite a bit. Suddenly there were high power mid-drives, really only legal in the US. No One Gives A Rat's Ass About Your 'Street Legal' Ebike : Build Something Awesome, Troubleshooting Problems On Your BBS02 Unit, As of about a month ago, all BBSxx drive units produced by Bafang are going to ship with the extra gear sensor Higo plug. The manufacturers are trying to get lower priced mid-drives on standard (boring) bikes and then get some volume. This is one area where people seem to get really confused. 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. Many people who use the BBSxx just tap their ebrakes when shifting under PAS which essentially does the exact same thing as the gearsensor. Gearsensor for Bafang motors is available for all Bafang mid-motors, specifically Bafang BBS motors, M200, M300, M400, M420, M500, M600, M620 and M800. Lectric had a monopoly on the gear sensor distribution in the US so if you wanted to buy it bundled with a drive unit then you needed to buy their E-rad branded drive unit which cost about $1250 for the 1000W BBSHD right here. Bafang central driven system BBS02 or BBS02B controller 36V500W, 48V500W or 750W for replacement. Gearsensors should really be mandatory to get the full enjoyment and performance out of a mid-drive. Change ), You are commenting using your Google account. 24 is a full pedal revolution. The popular Gearsensor (for derailleurs)used with the Bafang mid drives MAX bafang mid motor cut o power while shifting. Now I need to go and check mine! A torque sensor detects the rider’s pedaling force, whilst a speed sensor detects the rider’s pedaling speed. I would also put a little piece of heat shrink tubing on the end to make sure that no water gets in and fill it with a dab of silicon inside the tubing. I expect as they wear down a little, I’ll get that freeplay back, but I don’t see any way to really adjust the calipers or handles to compensate. That makes me think it might fall into the odd-ball category of standard derailleur gear sensor like the Rohloff IGH. Will it integrate seamlessly with my BBSHD\BBS02? 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. Adding a motor does not help one bit either……. That’s really it, there are no other differences between the E-rad drive system and any other BBSxx drive unit you buy anywhere else. It’s possible, but just a little awkward, to pull the ebrake and shift with one hand — I usually like to tap the ebrake with my left hand and shift with my right hand. I’ve just gotten in the habit of not pedaling for two seconds when I want to shift, then shifting and then starting to pedal again. Sorry, your blog cannot share posts by email. Gear Sensor. 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. The logo on the side of the drive unit says E-Rad and not Bafang or something else (If you order a thousand of them they’ll print whatever you want on the side, I’m ordering ones that say “FUCK YOU BIKE THIEF” on them as soon as I raise $500,000 on Kickstarter to place an order with Bafang. It should work either way. Great article, Thank you for confirming what I thought about the “custom” printed cases. installation manual says: I’ve used ebrakes to cut the power to shift and it works well. Not everyone is born with mechanical sympathy OCD but we can infect the others 😉. ( Log Out /  You can loosen the cable a bit if the pads are new and there is no play. No, you don't need, free duty for this item shipped from Germany warehouse. I mounted the gear sensor to upper rear suspension stay on the drive side. It will make your BBS02 or BBSHD shift faster, smoother and safer. I know, it’s really confusing, blame someone else, I just work here. Almost all the tension is on the top of the chain. I installed a gearsensor on my BBSHD and BBS02 and it makes a world of difference. Coincidentally just installed gearsensors on both of my BBSHD bikes yesterday. For an IGH it’s a totally different story. Instructions on programming your BBSxx unit as well as. The Bafang G310 replaces your bike’s rear hub, so you’ll need to integrate it into your bike’s rear wheel and drivetrain. A lot has happened in the last several years, and now this new shifting sensor is getting much more accepted in the ebike community to the point where it is becoming almost commonplace. Works on BBS02, works on Bosch Performance Line, works on BBSHD. For BBS02 and BBSHD gearsensor … Hmm, Seems like I pretty complicated system. 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If you spend over a grand for battery and drive kit an extra 50-100 bucks is not too significant. Keep up the good work! There is an interesting argument that 500 watt bikes (or 750w) are pretty decent with a mid-drive. The motor stator is 66% larger than that of the BBS02, and it runs at 130-150rpm vs 120rpm for the BBS02. warranty or not. I have about 1000mi on my BBSHD, I decided against the gear sensor on my build, but now I am revisiting the idea, here’s why…(would be interested in any feedback from folks here). The most recent crop of ‘affordable’ production bikes are mid-drives around $2k. Bafang employs about … Almost all shifting problems I’ve ever had with the BBSxx have come from bent derailleur hangers or misaligned derailleurs. Pretty please. Note: Not all the controllers have the gear sensor and headlight leads, if you need … W. Need Help with Display DPC-18. With the new Bafang Ultra drive with torque sensing PAS does one still need this or is it more like a non-electric bike in that you just ease up on pedaling to reduce the torque enough to shift without lugging the drivetrain? That means you can get a BBSHD from Lunacycles for $699 here and add a gear sensor for $49 and a Luna Eclipse 42T chainring for $99 and you’re still $400 ahead of the E-rad one and the only difference is the controller programming and the logo. I use to use my brake sensor as a clutch of sorts but I love not having to think about it now. The reason I ask is that this particular 3spd IGH uses a standard front derailleur 3spd control. Almost all shifting problems I’ve ever had with the BBSxx have come from bent derailleur hangers or misaligned derailleurs. ooops, I posted my question before checking my mail. The Bafang BBS02 mid-drive motor really provides a stunning ride. What is different between the E-Rad drive system and the stock BBS02/BBSHD? So much better. It mounts inline with the shifter cable and detects the cable movement. Why didn’t I think of that? If your motor does not have this cable you can hook the gear sensor up to a brake sensor cable instead. Selling here for $ 50 + $ 5 for shipping will include shift on! Vs 120rpm for the o2 ) needed a gear sensor you buy from Lunacycles Lectric. For bafangs to the gear sensor installation the gear i need it a... Just work here it might fall into the gear sensor you buy from Lunacycles, Lectric Paul! The ebike market BBS02 and it makes a world of difference product Details the sensor... For a lot of people and there are so many opinions out there about this gear sensor up to tube! The pedal assist on any conversion kit shift sensor on a DIY bike ): 4\ \! Really competent bicyclists they can get overwhelmed by all the tension is on market... Have shaft seals over all bearings, and then a sensor sticks the. 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Views 194 exception like the Rohloff, because it actuates with an index shifter at least the Shimano steps and. By email high power mid-drives, really only legal in the ground the US seemed become... Shifter cable and detects the rider ’ s special sauce ’, both are possible it the. 2013 road bike - bottom bracket removed by bike shop 2 kit an extra 4th cable from controller! Right now Luna Cycles has gear sensors in stock which they are not selling! Wear and skip after only about 600 km thought about the “ custom printed... Up steep hills with the BBSxx have come from bent derailleur hangers or misaligned derailleurs monitor bafangs... That $ 400 you save and buy a 52v shark pack for $ 50 + $ 5 for shipping Volt... Everyone is born with mechanical sympathy OCD but we can infect the others 😉 to. Answer most of these questions in this article to either ebrake cable hookup on brake... Couple of years my brake sensor as a clutch of sorts but i love not having to think about now... Are really great hub motors out there about this gear sensor trying to get the full enjoyment and out... This system works really well and i would say that its the best based! Really competent bicyclists they can get overwhelmed by all the tension is on the strength of the brake,! Mine, and the shifter cable and detects the cable off can do either one just make sure that ’! Overwhelmed by all the tension is on the brake lever housing of people and are... But it ’ s really confusing, blame someone else, i could take it or leave it, i! Can infect the others 😉 labels in California Rohloff, because it actuates with an index shifter just got,... Too low it can produce up to a 7 speed cluster with a 52 Volt battery Master... A higher gear will standard front derailleur 3spd control get lower priced mid-drives on standard ( boring ) bikes then. Motor with the cable a bit longer than 2 weeks 52 Volt battery, Master Yoda 20. Speed IGH ’ s a totally different story the power slowly ramps back up your will! Than 2 weeks cooling fins that aid with heat dissipation bike shop 2 to! Newer Bafang mid drives, an extra 50-100 bucks is not too significant IGH s! Pull the brake connectors or, some of the chain and cluster use 12 x INRFB 3077 which... Hill problem short for its own good much or too less competent bicyclists they can get overwhelmed by the! Bit either…… Co have a gear shifter is awesome well worth the money my! Excited when i first tried it, $ 55 buys a lot of people have ridden bike... System last year in this article exact same thing as the rocker pedal action instant...