Valdenaire french postman bicycle TSDZ8 or something else ?

inkobl

Just Joined
Jan 4, 2024
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Hi everybody,

55763

here it is my new project bike I want to convert my postman bike to longtail electrical with a :
- Tongsheng TSDZ8 48v 750w VLCD5
- Or something else ???

• Desired max speed on level ground 35km/h (off road).
• Desired max range at what cruising speed 35km/h.
• Preferred bike wheel size : 26x1,95 (53 - 559) rear tire size (front is 24').
• Brake type of motor wheel : front V-Brake (maybe Magura HS 33 R), rear original drum brake
• Rider weight : 80kg, (extra material carrying up to 100kg).
• Terrain. Exp: mostly flat, some short hills under 10% grade.
• Budget : 800€ (bike included 100€).

Here is my actual configuration :

front wheel 24'44 - 50724x1,75
rear wheel 26'53 - 55926x1,95
Boîtier pédalier à clavette68 mmBSC/BSA 1.37" x 24 TPI (34,8 mm)longueur de l'axe : 136 mm
Cassette14 - 24 dents5 vitessesSIS MF-Z015
Here is my composant list, there's some double as I haven't choose anything at the moment. I'm just starting to look at it :

Vélo facteur > la poste > Valdenaire150 €
TSDZ2B tongsheng 48v 500w VLCD5235 €TSDZ2B tongsheng 48V 500W 350W 15A tsdz2 electric bicycle mid motor with torque sensor throttle e-brake lever VLCD5 VLD6 XH18-LCD 850C
TSDZ8 tongsheng 48V 750W VLCD5338 €TSDZ8 tongsheng 48V 750W electric bicycle mid motor with torque sensor throttle e-brake lever VLCD5
Bafang BBS02B 48V 500W300€Bafang BBS02B 48V 500W Mid Drive Motor 8fun Bicycle Electric eBike Conversion Kit mid drive ebike kit new version
Battery Parrot 48V 20AH287 €Electric bicycle Battery Parrot 52V 48V 20Ah or 36V 25Ah Lithium eBike Battery the interior battery is SAMSUNG 21700 Li-ion battery
Battery HAILONG-PLUS 48V 17.5AH287 €Electric Bicycle Battery Hailong 21700 18650 Cells Pack 48V 36V 12.5Ah 19.2Ah Powerful ebike Lithium Battery for bafang tsdz2 tongsheng motor
Freins avant Magura HS 33 R75 €Magura Frein sur Jante HS 33 R
Antivol de cadre30 €Antivol de cadre vélo - Lecyclo.com
Cintre inox en forme de V 635 mm26 €Cintre Inox en avant en forme de V 635mm
Shimano Steps SG-C7000-5C154€Shimano Steps SG-C7000-5C, Noir | Bikeinn
Shimano Nexus E-Bike 5V Back-Pedal Rear144€Shimano Nexus E-Bike 5V Back-Pedal Rear, Noir | Bikeinn
Shimano Nexus Inter 8 argent 26 pouces roue arrière vélo ZAC2000172 €26 pouces roue arrière vélo ZAC2000 Shimano Nexus Inter8 argent
Frein de rouleau SHIMANO Nexus BR-C6000-R50€Frein de rouleau Nexus BR-C6000-R pour Taylor Wheels Roue arrière Inter 7/8
CHAINE ANTI-ROUILLE POUR MOYEU SHIMANO NEXUS 3/5/7/8V9 €Shimano CN-NX10 Chaîne vélo pour moyeu Nexus 3/5/7/8 vitesses

If you got some advise into building my electric bike, I will be glad to know it, here's some details about my needs :

- I think i really need the torque sensor as I don't really like the moped style.

- I'm not sure to change my 5 gears, sprocket set I will be glad t use the same in a first time also because there's no option to buy a 5 gear Nexus inter5 a bicycle hub with spoked rim (it's quite expensive in France). Other alternative is to buy a Nexus inter8 ZAC2000 for 172€ or keeping the original Shimano SIS with 5 gears sprocket.

- I don't expect to go very fast but I will be glad if I can climb some 10% roads, up to 100km, with a well-loaded bike up to 130kg. That's why I would like to buy a motor bigger than 250W, because I would like to be able to carry a lot of weight without difficulty.

- As I live in Marseille I'm also looking for solution against robbery, I plan to use a U-lock, with a frame lock and also adding an airtag, he will spend his night safe at home.

- Also I will be very happy if I manage to have an Open Source Firmware to be able to adapt the bike corresponding to my needs...

- Is there some cheap and reliable solution with hub motor and torque sensor ?

Thanks have a nice day !!!