I own one, haven’t gotten around to installing it yet. Please do not use packing peanuts. 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? Change ). Valerio; Jul 20, 2020; Replies 12 Views 1K. Create an account with us and you'll be able to: Fill in your email below to request a new password. you can choose the direction, both are possible. Almost all shifting problems I’ve ever had with the BBSxx have come from bent derailleur hangers or misaligned derailleurs. The motor itself is physically larger and just under 1kg heavier and it has external cooling fins that aid with heat dissipation. Visit the help section or contact us Submit Please provide a response Response must be less that 100,000 characters I just got mine, and the gear-shift power-interrupt was the only remaining question. 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It sends a signal to the controller to cut motor power while shifting gears. For more power, you can either run the BBS02 hot, or upgrade to the BBSHD @ a cool-running 1500W. I was getting buyers remorse until I read your comments. For the masses the idiot proof luxury of only “go” and “stop” a gear sensor is like an auto clutch or auto trans and will help sales as noted above. Great article, Thank you for confirming what I thought about the “custom” printed cases. that doesn’t suck just use ‘Karl’s Special Sauce’. Not everyone is born with mechanical sympathy OCD but we can infect the others 😉. 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. Not as nice as the rocker pedal action back/shift/forward instant power cut shifting. In all honestly, I could take it or leave it, $55 buys a lot of drugs beans and rice. Bafang central driven system BBS02 or BBS02B controller 36V500W, 48V500W or 750W for replacement. Thanks for commenting! Will it integrate seamlessly with my BBSHD\BBS02? The Bafang G310 replaces your bike’s rear hub, so you’ll need to integrate it into your bike’s rear wheel and drivetrain. It’s not clear to me if the internals are the same as the other SA 3spd IGH’s that don’t have a cassette. I didn’t realize till after riding the Bafangs for a while what a grind gear shifting can be. Pretty please. Can send you some pictures, if you interested. 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. You can hook up a gear sensor to either ebrake cable hookup on the BBS02 or BBSHD and it will work just fine. Here's how you can do it: As of right now Luna Cycles has gear sensors in stock which they are selling here for $50 +$5 for shipping. 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. ( Log Out /  – The sensor is patented which can detect the action when rider shifted the gear on eBike – It can help a rider avoid some problems like chain or derailleur damaged, also can bring some smooth shifting feeling to the rider, it can widely be used for middle motor drive system Fully agree the experience of a gear shifter is awesome well worth the money in my opinion. 1 set of Bafang disc brake sensors 6. This system works really well and I would say that its the best cadence based pedal assist on any conversion kit. If your motor does not have this cable you can hook the gear sensor up to a brake sensor cable instead. A must for center-motored e-bikes! 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. No, you don't need, free duty for this item shipped from Germany warehouse. What do you do with the cable if you don’t want to run a gear sensor? For BBS02 and BBSHD gearsensor … 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. Gearsensor for Bafang motors is available for all Bafang mid-motors, specifically Bafang BBS motors, M200, M300, M400, M420, M500, M600, M620 and M800. Then wrapped the brake assembly two more times with the tire tube to hold the sensor securely in place. If you have hydraulic brakes, or brakes integrated with your gear shifters (see above) you will need to fit hydraulic brake cutout sensors. Check out Karl’s special sauce on the programming page. More bikes on the road here is a good thing. I just plan ahead and shift into the gear I need to be in before I need it. I am using the Tektro e-brakes sold by Matt at Empowered Cycles. I know, it’s really confusing, blame someone else, I just work here. The maximum accepted is 20. If you buy any BBSxx unit with a LUNACYCLE logo on it then it should have a dedicated Higo plug on the controller for the gear sensor. 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. That would mean the direction the cable inside the sensor is moving would affect the pause duration of the motor. Hw is almost done as proto, now need to code iPhone app. Must I have the dedicated Higo controller plug to use a gear sensor? Spacers: Select all that apply 3x 2mm bottom bracket spacers (needed if gear reduction housing on motor touches chainstay) (+ $5.00) 6x 2mm bottom bracket spacers (needed if gear reduction housing on motor touches chainstay) (+ $10.00) 5mm spacers and M6 20mm bolts (needed for 73mm bottom bracket) (+ $5.00) 10mm bottom bracket spacer (useful for adapting 100mm bb motors to … Gear Sensor. The Gearsensor acts like a speed shifter so you are able to shift your bike at full throttle and barely fill the throttle cut off. salake; Nov 25, 2020; Replies 9 Views 319. 1 52v Panasonic 13.5ah GA Shark Pack 4. 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. I find the weak point on the BBS02 system is the chain and cluster. Any gear sensor bought with a Higo style plug will work with ANY BBS02 or BBSHD on the market. 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. 1 Lekkie BBSHD Bling Ring 42T Red 5. It sends a signal to the controller to cut motor power while shifting gears. I added ebrake reed switches/magnets and the shifter sensor both to my ebike. 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). An email will be sent to the address below containing a link to verify your email address. 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. When you pull the brake lever, the brake sensor detects this and cuts power to the motor. i.e. 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. DPC 18 Battery pages. I use less power than with the PAS. 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 need it to be amateur proof as much as possible. And their website shows a bike with it “backwards”. This is much needed info to clear up a lot of common questions. Coincidentally just installed gearsensors on both of my BBSHD bikes yesterday. Power-wise, it can produce up to 160N.m of torque (compared with 120N.m for the o2). 99. If it is under warranty, Bafang will offer repair or replacement for free. It should work either way. Karl, can you let us know how to tell the two different types of gear sensor apart? Many people who use the BBSxx just tap their ebrakes when shifting under PAS which essentially does the exact same thing as the gearsensor. Suddenly there were high power mid-drives, really only legal in the US. I see that you have discussed here usage of GS-D and GS-I models for different shifting systems. I think the only other real motivation for going with a gear sensor (assuming they actually work well) would be easily shifting with one hand. 1 pack of bottom bracket spacers (variable width… I then secured the tube with a zip tie and wrapped the zip tie with black electrical tape. Change ), You are commenting using your Facebook account. Great article as always, Karl. El Segundo, CA 90245 Anyway, I am working on a Power monitor for bafangs. As for my wife or anyone taking my e-bike for a test ride it’s a very nice feature to have and worth every cent of $50. I mounted the gear sensor to upper rear suspension stay on the drive side. The motor controller use 12 x INRFB 3077 MOSFETs which enable the motor to handle the 30A continuous current. What a difference, works nearly seamlessly. Don’t have to lay off the throttle, or stop pedaling at all. Best regards / S pozdravem Until very recently the only place stateside you could buy a gear sensor stateside was from Lectric Cycles for $75 + $15 shipping here. I’ve used ebrakes to cut the power to shift and it works well. Instructions on programming your BBSxx unit as well as. Dec 8, 2020. It is like a manual clutch action, so you can use operator training to solve it… Like keyboard shortcuts for “trained” PC users know CTRL+C for copy. You’ll be $55 richer for it, but hey it’s only money right? 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. More wiring dangling off the frame is ugly and just collects mud. Our BBSHD motors come equipped with the gear sensor cable so you can add it at the deraileur. That makes me think it might fall into the odd-ball category of standard derailleur gear sensor like the Rohloff IGH. NOTE: This is only for Ultra and Max. I don’t have to stop pedaling at all and it shifts smoothly. Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Reddit (Opens in new window), Click to email this to a friend (Opens in new window). 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. My first exposure to the Gear Sensor was while testing the E-Rad branded BBS02 drive system last year in this article. Ravi Kempaiah. Gear Sensor got right back to me: “For this application we do recommend to use GS-D model (for derailleur).”. Showdown Of The Crappy Ebay Battery Spotwelders : Which One Really Sucks The Least? They also have shaft seals over all bearings, and as a result water ingress into these Bafang hubs is a rare occurrence indeed. It will not work with a Strumey-Archer 3spd IGH control. 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. ( Log Out /  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). Perfection be achieved without gear shift sensor. I simply give a slight pull on the brake like I was using a clutch. The company focuses on all global e-mobility trends of the future. If you do not have a motor with this extra yellow 3 pin connector, you can still install it near the shifter and plug it into one of your brake connectors. Essentially, if I try to do what I used to be able to do, in order to cut the motor out I have to squeeze hard enough that I am applying significant braking (which is not what I want of course) — presumably because the built-in ebrake sensors need more distance apart before they switch. However the gear sensor will work with all bafang mid drives by simply connecting it to one of the ebrake cut off switches. 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. “Start pushing the inner cable into the plastic housing from any of gearsensor sides to fit cable direction to the controller input.” (????). 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. Disable the pedal assist and control your power with a throttle – problem solved. Bubble wrap the battery and secure it so it won't move during transit. 24 is a full pedal revolution. $23.99 $ 23. Get a $20 programming cable and program your BBSxx however the hell you want. Is it a must have? The motor stator is 66% larger than that of the BBS02, and it runs at 130-150rpm vs 120rpm for the BBS02. I also feel much better lending my bike to my girlfriend or friends knowing that they probably won’t explode drivetrain things. This device would be installed on the shifting cable by cutting out a small section of the cable housing and it would sense when you shifted the gears on your ebike. It is the only original shift sensor available on the ebike market. Pedal assist sensor in Bafang mid drive. “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.” Honestly, most of the time if I want to shift I just stop pedaling for a second till the motor cuts out then shift and start pedaling again. Stops heavy torque “slamming” of the chain. 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. What is different between the E-Rad drive system and the stock BBS02/BBSHD? I’ll attempt to answer most of these questions in this article. Gear Sensor for the Bafang Ultra and MAX Drive Systems Save your drive train by having your motor auto shut off on shifting NOTE: This is only for Ultra and Max. Nice article as always. Works on BBS02, works on Bosch Performance Line, works on BBSHD. 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 … Hopefully that will last a bit longer than 2 weeks. ): 4\ 4 \ 4 \ 4 \ 2 – The number of sensor steps before the start up commences. United States. I think they will include shift sensors, for marketing. But there is a strong case for low power mid-drives, just to solve the hill problem. The manufacturers are trying to get lower priced mid-drives on standard (boring) bikes and then get some volume. There are so many opinions out there about this Gear Sensor. Accell is pushing this, and they pushed the wattage limits and wattage labels in California. 52v batteries are the only way to fly on the BBSxx units, and Lectric will not warranty any of their drive units that are used with a 52v battery. Kind of like my collection of pre-enjoyed sex toys I stole from the Salvation Army collection boxes. So much better. The NCRb shark pack is the best inexpensive 18650 lithium battery pack I’ve ever tested on any ebike to date. There are no differences between them. I’m switching from a 9 speed to a 7 speed cluster with a beefier chain. The manufacturer–not so much. 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. It’s curious that for 50 bucks you can get a shift sensor on a DIY bike. It mounts inline with the shifter cable and detects the cable movement. Connects into one of the brake connectors or, some of the newer Bafang mid drives, an extra 4th cable from the controller. The gear sensor on an E-Rad with a cable that is just a little too short for its own good. 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. Just goes. They said: Dear Phil, Change ), You are commenting using your Google account. wozwasted; Dec 7, 2020; Replies 1 Views 194. Yup my bad. 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. Richer for it, but i just never use it anymore it shifts smoothly system is the mid-drive. Steep hills with the stock Bafang programming the newest Bafang version BBS02B to girlfriend... 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