Mendip99

Many thanks for taking time for the comprehensive clarification - seems that sealing against water ingress is improved on the To7 DM02 so may consider that if I ever do need to replace the Tongsheng. In the meantime thanks for all the advice to keep it going as long as possible !

Thanks - so that's RRG on the rubber vee seal, but nothing around the outer edge ?

Thanks for the tips on putting in additional bearings that I have now done. Any suggestions on sealing the outer edge of the plastic gear case.? There is a nice rubber vee seal on the inner circumference but currently water can get into the outer edge. Anything better than careful application of a little bathroom sealant on the mating faces before assembly?

I bought a TSDZ2 from Whoosh - stated as 250W 48V. Put it into a Niner MTB with a few tweaks, including changing the chainring to 34Teeth, and running with a dinner plate 11 to 48 rear cassette Also fitted Bangfang cranks to reduce Q factor Have a 10Ah battery in a small frame bag that I have yet to empty on a day's ride Almost 1,000 miles, mainly off road and often wet/muddy but no electrical or control problems Lateral play/wobble in the main axle seems to be increasing, a bit at odds with my other non electric bikes running Shimano sealed BBs or the old loose balls and adjustable cups days, so I might investigate the various on line solutions like DS shims or extra bearings on the NDS side. Generally really pleased with it, great value and minimal weight increase to the bike. It lets me get much further afield on tarmac roads with the wide tyres, and then get home easily when tired after a few loops of the MTB trails

Many thanks, understood!

Many thanks for the prices and all of the information you have provided. I am getting very close to a purchase from you! Finally I assume that I don't need to fit the throttle even although it is supplied ? Thank you

Thank you, I am not so confident tinkering with the electric side, very happy with the mechanicals, so would be looking for a battery that gave the best value for money with reliability too. Moon on a stick ??

Many thanks, can you tell me your total price for the 48V Tongsheng unit with throttle and the battery in a bag plus charger, all delivered inside UK.

Thanks for the replies, I was really looking for recommendations and suggestions for specific brands and named reputable low cost supplier's. I am in the UK.

I am open to suggestions for makes and/or on line suppliers for a battery as above. There seems to be a big range in price for same spec products, so I am interested in real life experience of the cheaper options ! Is it worth the extra cost of Panasonic cells, etc, etc...and any other points. I like the look of the Whoosh bikes triangular bag battery at 10Ah, but waiting for 10 Dec release when I expect the price would be known.

Many thanks, any idea on a guide price ?? with a suitable charger.

Any more information on the battery in a bag please. How do they fix to the frame. Are they suitable for the Tongsheng units that you sell. Many thanks

Many thanks to everyone with the feedback. I will have a rethink based on the points raised !

Good morning I have been looking at the forum for a while and now taken the plunge, after a lifetime of cycling powered by me thinking about making a Tongshen conversion so : Considering the 250W unit for MTB / gentle off road / fire road use - if needed can this be upgraded to the 350W unit or beyond via the firmware ? What are these units like to pedal when the battery is not fitted ? Is there a freewheel / internal clutch or are is it hardwork pedalling the motor around. Any recommendations for a UK supplier of motor / battery - There are so many options out there and I would be after 34Teeth (or smaller) Many thanks