Joined in 2023 
82 
63 About this deal
Speed: The BBS02 is faster and more powerful. The speed limiter on the BBS02 can be removed (up to 99km/hr) with the C965 display. The TSDZ2 speed limit can be set up to 45km/hr (although you can set the wheel size to smaller than actual to bypass this, although the speedometer will not be accurate). Okay, so after riding 200 miles on a standard setup (48v 500w with VLCD5 screen) I have decided to experiment with the Open Source Firmware. The standard performance is more than adequate and with a 14.5Ah battery I have been managing 60 miles on a full charge. On the other hand the drive is not particularly smooth when compared to a Shimano Steps or Bosch equipped bicycle, especially around the 25kph cut off point and to get the best out of it I have to constantly flit between modes to vary the assistance on undulating terrain. OSF performs very well right out of the box. Still, suppose you want to make adjustments like changing the power performance on each level or increasing the torque sensitivity. In that case, OSF gives you many configuration options to make it exactly how you want it. Because this is a mid-drive unit, the assistance is much more subtle than rear or front wheel drive units. The power is blended in much more smoothly and I imagine would be much less disconcerting to a rider not used to an e-bike.
Schwalbe Marathon Plus tyres if you are going to use it for commuting and want reliability from punctures. But may well not suit your off-road needs. Your e-bike can be ridden as a normal bike when the motor out of power thanks to the new bidirectional free-wheeling clutch One of the things that experimenters like about the TSDZ2 is that it has both, a torque sensor and speed sensing. A “strain gauge” is a tiny but sophisticated device that measures the strain that occurs in a metal object, as force is applied to it. An ebike torque-sensor is a specialized type of strain gauge. It’s not as good on hills as the Bafang BBS02 but is fine on moderate hills. Is the Tongsheng TSDZ2 waterproof? The TSDZ2 also comes in a coaster brake version. If you have a coaster brake bike, this is the only game in town. No other mid-drive or rear hub motors can work with a coaster brake. You could put a front hub motor on a coaster brake bike, but front hubs have their own issues. The TSDZ2 coaster brake motor opens up a lot of fun bikes to the possibility of an even more fun ebike.
Whether you're cruising around town or climbing a steep hill, this motor gives you the boost you need to get where you're going. And because it's a mid-motor design, it's perfect for those who want a more balanced ride. So if you're looking for an electric bike conversion kit that can keep up with your active lifestyle, the TongSheng Mid Motor is the perfect choice. Question: Would the 250w motor give a lot less noticeable performance than the 500w motor in terms of torque etc.? 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?
This project is being developed and maintained for free by a community of users. Some of them are developers who work professionally developing this type of technology for very well known companies.
Kits
The “Q-factor” (from Quadracepts, meaning the width of the pedal placement) on the TSDZ2 is wider than average. Some riders swap-in the BBS02 crank arms, which reduces the Q from 210mm to 182mm. Some builders swap-in only the right-side crank arm to make the pedals more evenly spaced from the centerline of the bike.
De plus, on monte sur un cadre non renforcé qui n'est pas conforme aux norme des vélos électriques. 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. Whereas the TSDZ2 uses a torque sensor, the Bafang uses a cadence sensor, giving the motor an on/off feel. The Bafang is much quieter, almost silent. But it’s heavier, more expensive and just as prone to technical faults. For more information, please read my Bafang vs. Tongheng comparison article. Pros and Cons Pros Before ： The reduction shaft kit can be disassembled into nylon gear, shaft and one way needle bearing. Once you've completed the installation and fine-tuning, it's essential to conduct thorough testing to ensure everything is working correctly. Follow these steps: Conducting Initial Tests
coaster brake function -----it is means If you bike don't have any brake lever, you must use the motor with coaster brake function, otherwise you can choose the motor have a freewheel 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). Let’s start off with the key question – is a bike with a retrofitted Tongsheng TSDZ2 motor going to be as good as a dedicated ebike? As long as you have the range of gears you need and it's all working well I wouldn't be too fussed with 9 speed ... but of course you will get wider range or closer gears ... and more wear.
Great Deal 
New Comment