The Tongsheng mid-drive motor mounts in a similar way as the Bafang mid-drive motor, the Tongsheng mid-drive motor does include an extra mounting feature though. You can see this mounting feature in the image above. It’s a little metal plate that gets clamped between the frame and the motor. This plate will prevent the motor from undoing itself because of its own torque. Tongsheng has done a great job adding this feature because it will prevent a lot of issues over time. On some bikes, you won’t be able to use this feature though, because of possible clearance issues. The motor fortunately can still be mounted without using this extra clamping feature. It will then just mount in the same way as a Bafang system would. New version TSDZ2B has two clutches designed on the main gear, Main gear is disengaged from the chain during riding, So it feels as easy to ride as a bicycle; Old version TSDZ2 rides with main gear, Main gear turns with small gear.So the riding resistance is larger than bicycle Apart from the e-brake functionality, the displays all provide the same functionality. So your choice should depend on personal esthetic preference. I personally prefer the VLCD6 and XH-18 over the VLDC5 because of their size. The VLCD5 display is absolutely huge, it’s a bit overkill in my opinion. The VLDC5 and XH-18 are really discrete and display the exact same information. But if you absolutely want the e-brakes then you will still have to go with the VLDC5. Chainring, e-brakes and throttle options Chainring: The TSDZ2 is “torque-sensing”– if you pedal gently, you get a gentle assist; if you pedal hard, the motor works harder. This differs from the other common mid-drive kit (Bafang) which is cadence sensing – you set the assistance you want, and so long as the pedals are turning, the motor gives that flat level of assist.

A ritmustámogatás magasabb fordulatszámon – a törzsmodell 90 ford./perc közelében már nem segít. Az újraprogramozással akár 120 ford./perc pedálozási sebességig is segítségedre lehet.

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). The ‘Sprag clutch’ or one way bearing has also been known to fail occasionally. ***This issue has been rectified with the latest ‘B’ model. It’s worth mentioning that in 2022, Tongsheng released an improved version. This is called the TSDZ2B and features several improvements, but most notably a dual clutch system inside the motor which drastically reduces drag when the motor isn’t in use. The blue gear issue has apparently been fixed as has the sprag clutch problem. Is the Tongsheng TSDZ2 legal? 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. So which power level should I choose? This depends on what sort of ebike you want to build. If you want a street-legal ebike, go for the maximum amount of power that is road legal in your country. This is 250W in the EU for example. If you however don’t mind the regulations, go for the 48V 750W version. This is the most powerful and versatile option. With this version, you can use a lot of power if necessary by selecting a high pedal assist mode. If you don’t need all the power, you can just select a lower pedal assist mode. You will have the best of both worlds in this case. Which display to choose?

I was pleasantly surprised how quiet the motor was and it only became noticeable when climbing hard. The uptake is very smooth and it has met my expectations, so I cant see me changing the front ring to a bigger one or modding the firmware like others do. I prefer riding with the speed limiter raised by a couple of mph not because I am a speed demon but I found assist coming in and out a lot as I seem to hover around the 15mph mark. It wasn't that it was jerky or anything it just "felt" more pleasant being under slight assist all the time. I really didnt use the gears much at all and stayed in 2nd from top most of the time. Even pulling away in this gear was easy and on the steepest hill I didn't drop below gear 5 of 10. When I returned battery was half depleted. Bike in shed now so not sure how many miles, 35 at a guessIf you have a mobility reduction or impairment, you should opt for the TSDZ2T which is the TSDZ2 with throttle which helps climbing hills without extra work. Se for direcionado por baixo do suporte inferior, pode ser necessário redirecionar o cabo da engrenagem e a mangueira/cabo do freio. Isto se deve ao mau projeto do motor, que deixa muito pouco espaço para cabos. Question: Would the 250w motor give a lot less noticeable performance than the 500w motor in terms of torque etc.?

Lehetőség van különböző kijelzők használatára. Például a KT-LCD3, csakúgy, mint a színes Bafang P850c kijelző, általánosan használt. There are three different display options available for the Tongsheng TSDZ2 conversion kit. You can choose between the VLDC5, VLDC6, and XH-18 displays. Which display you need to choose depends on one question: Do you need e-brakes? If you want e-brakes, the VLCD5 display will be your only option since this is the only one that supports e-brakes. If you don’t want to use e-brakes, you are free to choose any of the three.Igen, gond nélkül szereltem fel Tongsheng motorokat az 1970-es évek kerékpárjaira. Amíg az alsó tartó alaptartozék, legyen sima vitorlázás! Következtetés At the moment, Bosch and Shimano motors have a two-year warranty from new. After that, if you get a fault, you either live with it or get a dealer to buy and fit a replacement motor (and from what I can tell it has to be exactly the same motor model – no upgrading). It’s not entirely clear how that process works, or whether dealers can get hold of spare parts, or just entire motors. Customizable (you can fine-tune the motor unit to suit your individual needs using the embedded software) f) The motor and battery are heavy so dont worry about your bike being heavy or light in the first place. The motor will negate whatever weight