Joined in 2023 
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63 About this deal
I said the TSDZ2 max power was a touch low, but it still does the job. My electrified Sutra weighs 36kg, I weight about 85kg, and even carrying about five kilos of shopping it’ll still trundle up a 12% hill at 20kph-ish. Add more weight (say my four-year-old), and you’ll need to change down another gear, and will be going up the same hill at maybe 15kph. On the flat it’ll happily get you up to 25kph (where the assist fades away; again, a legislation thing). I’ll also mentioned that Tongsheng’s firmware (ie the code that tells the motor how to behave) is a little weird. In particular, you get maximum assist at an oddly low cadence – about 60. It then tails off until at about 100 RPM you get very little help at all. This is not intuitive if you’ve mentally programmed yourself to spin up hills to stop your knees exploding; I sometimes need to change up to a harder gear if I want more help on a hill (this only works if you’re not already getting the max available power from the motor. If you are, then you need to change down to keep going. You’ll get the hang of it after a few weeks, honest). No, it’s resistant to water and can be ridden in the rain, but I would avoid puddles. Will the TSDZ2 fit bikes with thru-axles? You may also note that I have not plumped for the legal 250w motor. Shop bought eBikes adhere to the ‘nominal rating of 250w’ or however it is worded, but essentially some perform better than others and most have peak power outputs quite a bit higher than 250w - that much is evident when you ride them. I have test ridden a few legal shop bought bicycles with the crank drive motors mentioned above and they both felt no less powerful than my so called 500w. Like those my motor is limited to 25kph. I intend to keep it that way and sleep soundly thank you very much. Ce n'est pas la faute des fabricants chinois si le statut des rééquipements en Europe n'est pas très clair même s'il est vrai que la communication de Tongsheng est proche de l'inexistant.
Bien que Tongsheng ne communique pas du tout, ce moteur a été fiabilisé au fil du temps et je suppose qu'il partage pas mal de composants avec les moteurs de première monte de la marque ce qui pourrait expliquer les améliorations (il faut suivre le forum sur Endless sphere mais il y a des milliers de post...): I did have a few minor gripes. The instructions could have covered the entire build, not just fitting the motor. The design of the display remote meant I found it difficult to select the information button without accidentally changing the assistance level and I noticed, if you accidentally have your foot on the pedal when you turn the unit on, it seems to mis-calibrate its torque sensitivity and you end up with little or no assistance. keep your cadence high. Output power = torque * rotational speed, the higher your cadence, the more help you get from the motor.
1.Appearance Upgrade
This ebike motor controller firmware project is to be used with the Tongsheng TSDZ2 mid drive motor with controller v1. See here for V2. IF…you are willing to void the warranty, there is a free firmware program that allows you to adjust every aspect of its performance and “feel”, and…many users are reporting that it works great (I don’t know, so don’t blame me). Display shows more advanced information like battery voltage, rider pedal power in watts, motor temperature, cadence, trip time and distance. After reinforcing, the strength increases by 15%, reducing the failure rate of this reason and after-sales on this point. I’ve ridden torque-sensing ebikes at Interbike, and I have to confess, I do like the feel. However, the ebike I ride the most right now is a 1500W BBSHD from Luna Cycle. When spring of 2019 arrives, my next project is boosting the BBSHD power to 2500W, so a 750W drive doesn’t interest me, no matter how smooth and seamless the power application is.
Community: The Bafang products are more popular and have been widely used, tested, and customized. There are more tutorials, information, and guides by far than for the Tongsheng products. The torque sensor plays a crucial role here, providing proportional assistance based on your pedaling effort. This feature not only conserves battery but also mimics the feeling of riding a traditional bike. Expect a range of 40-50 miles on a single charge, making it suitable for daily commutes or leisurely rides.The TSDZ2 from the left side. If you try to rotate the body forwards and up, the squarish controller cover would protrude downwards more. This location is where it’s designed to be. A TSDZ2 that has been adapted to using two 110-BCD chainrings and a derailleur, shown here on a recumbent tadpole trike. How reliable is the Tongsheng TSDZ2? Below, I’ve listed the common problems associated with the Tongsheng motor. Also, I have found it difficult to get past 40-km/h on flats with the TSDZ2. I think that is because the assist cuts out beyond a certain level of RPM. A larger front chain ring would help if speed is what you need. The default chain ring is 42T. There is also a setting for “power adjustment”, which may help if I increase it.
C'est la raison pour laquelle certaines organisations aux US préconisent l'utilisation de la norme UL2849 qui certifie l'ensemble du véhicule. One of the biggest problems with mid drives is that the customers who buy them can make stupid mistakes. Even after you have warned them, they will sometimes start their ebike from a dead stop, in the top gear, on a steep uphill, while using the max possible amps. If you do this enough, the drive will overheat and die. The factory drives from Bosch, Yamaha, Brose, and Continental all have integrated safety features to protect you from yourself. The TSDZ2 gives you the freedom to destroy it with bad decisions.However, you must not fit a bigger ring than 44T. The TSDZ2 has 42T ring, maximum 95RPM. On bikes with cassette and 700C wheels, that is 30 mph. Finally, I’ve fitted the 48V, 250W version of the TSDZ2 (ie EU-legal), with the factory firmware. It’s paired with a 12Ah battery. Is the TSDZ2 as good as a dedicated ebike? Disc size again depends on intended use, weight etc. A 203mm hydraulic on the front is a serious stopper, but use it with caution in the wet/ mud or you'll end up on your arse. My 160 rear/ 180 front is the perfect compromise in my opinion. I'm debating upgrading to a four-pot caliper on the front but that's 'coz I'm a spec tart.
We here at ReCycles have done extensive work and research on these units, and offer an exclusive custom made model, more powerful, and with features and optional upgrades unavailable anywhere else. Remember, we love this stuff ourselves, and although we usually are into 'higher power EV'... we LOVE the torque sensing on these units, and the feeling of 'super-pedaling' that you simply cannot get on any ebike system that does not have a quality torque sensor. This one sensing torque on BOTH sides, and is quite smooth. This Tongsheng/SFM mid drive motor with torque sensor is the cheapest and good torque sensor mid drive motor in china, you can feel the power from your foot to start the ebike,so you don't need use throttle to start the ebike P.S: The links to where I bought the parts from are just that, not an advertisement and they are likely available elsewhere.
Those drawn to the TSDZ2 usually come to it by searching “torque sensing mid-drive motor.” Until the CYC line of mid-drive motors came out, the TSDZ2 was the only game in town for torque sensing, which is its primary advantage over the Bafang mid-drive motors. With torque-sensing, the motor not only senses that you are pedaling but also senses how hard you are pedaling and can respond accordingly. It can feel very natural to have the ebike respond by magnifying your effort with motor power and not just put out a constant amount of power whenever you are pedaling as the Bafang motors do, PAS power levels are adjustable, regardless of the type. TS enthusiasts often mention that it is a more natural and intuitive cycling experience to use a TS type of PAS. The expensive factory drives from Bosch, Yamaha, and Continental use this. But those companies won’t sell it in a kit that can be added to a frame that you already own. There are only a few companies that will sell a TS kit (Lingbei, Xofo, etc), and the TSDZ2 is not only the most available, it is also the most popular. After canceling the one-way bearing, the new design is all in one nylon gear which can bear greater torque with I’m mentioning a lot about torque-sensors because many ebikers like it…and some like it a LOT. I have ridden many factory ebikes with TS, and I appreciate its virtues. The power application is instantly on, and when you stop pedaling, it is instantly off. One key feature is that the harder you pedal, the more power it applies, with a very smooth transition. The TSDZ2 is a crank drive kit meaning it applies the power direct to the spindle which the pedal arms are attached to. This is more efficient than hub (wheel) kits and is better for hills and heavy riders. As its torque based the ride is also smooth and feels more natural akin to having bionic legs.
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