New M820 frame from Seraph/TanTan, the E67.

[clix]

Regarding the battery going to sleep, I believe it was written before in some other thread before. What turned out to be the case is, that person received the wrong wire harness. Essentially, battery BMS was not connected to the motor, so the only way to wake it up was to plug it in.

To check, the round green connector from the battery, do you have this one connected to the wire harness or is it hanging loose?
I also have original bafang 410wh battery from bafang, and I don't have this issue. I can turn on a bike that has been turned off for a week no problem.

 

[Lvtride]

Regarding the battery going to sleep, I believe it was written before in some other thread before. What turned out to be the case is, that person received the wrong wire harness. Essentially, battery BMS was not connected to the motor, so the only way to wake it up was to plug it in.

To check, the round green connector from the battery, do you have this one connected to the wire harness or is it hanging loose?
I also have original bafang 410wh battery from bafang, and I don't have this issue. I can turn on a bike that has been turned off for a week no problem.

Would you happen to have a picture of the wire harness?

 

[Verdo07]

I think clix was talking about this discussion....at least these are the correct cables....read the messages before and after too...

M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

I did another run today. 35km, 1060m of elevation. Some of it was on boost, majority, in sport and eco on the flats. Came home with 12% battery left. Motor for sure has a lot of power. For me, more than enough. In boost is is very rapid. But the battery from 30% to 20% was drained very quickly...

www.emtbforums.com

 

[Lvtride]

I think clix was talking about this discussion....at least these are the correct cables....read the messages before and after too...

M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

I did another run today. 35km, 1060m of elevation. Some of it was on boost, majority, in sport and eco on the flats. Came home with 12% battery left. Motor for sure has a lot of power. For me, more than enough. In boost is is very rapid. But the battery from 30% to 20% was drained very quickly...

www.emtbforums.com

Great. Thanks.

 

[temon10]

Very slow project but keep going on....patient is the key

 

[Freda]

Can you give some specs on your batteries?

 

[Verdo07]

Very slow project but keep going on....patient is the key

calmly...like me...
good job!!!

 

[temon10]

Can you give some specs on your batteries?

inside frame tube 540Wh 10s3p 21700 cell, extender 360Wh 10s 2p.

 

[Verdo07]

I'm 175cm.

sorry if I bring up the subject of the seat post again... with the 210 fully inserted, as I think it is in your case, what saddle height does it take you to? calculating for a moment he seems very tall x 175 cm... I'm 182 with 86 inseam and I pedal at 76/77cm but with your configuration I seem to be taller? where am I wrong? what is your inseam?

 

[Lvtride]

sorry if I bring up the subject of the seat post again... with the 210 fully inserted, as I think it is in your case, what saddle height does it take you to? calculating for a moment he seems very tall x 175 cm... I'm 182 with 86 inseam and I pedal at 76/77cm but with your configuration I seem to be taller? where am I wrong? what is your inseam?

I haven't measured the height of the saddle but my inseam is about 82. The seat post is inserted as far as it'll go.

 

[ficorama]

Frame arrive yesterday. Looks good, solid production. Downtube slimmer than CEF50. Now is time to make custom battery, will go for 36v 540Wh if possible.

View attachment 124310 View attachment 124311 View attachment 124312

Hello. would a 210x55 shock with offset bushing fit. with an offset length of approx. 205mm and how big is the seatpost insert? thank you

 

[ficorama]

Very slow project but keep going on....patient is the key
View attachment 132701 View attachment 132702 View attachment 132703 View attachment 132704

how is the battery fixed? Internal

 

[ficorama]

View attachment 116561 View attachment 116562

what is the weight of the bike?

 

[LAnton]

Is everything okay with the new frame? There have been no new messages for a long time. Will the company fix the error in the frame?

 

[borysgo2]

inside frame tube 540Wh 10s3p 21700 cell, extender 360Wh 10s 2p.

temon10
Can You measure clearance between the top tube and center of the shock please ??
Thanks

 

[temon10]

Finally I can finish my E67 build. Final weight with 540Wh DIY battery is 20kg. Little higher than expectation but with tight budget it's OK. Maybe I have to change that heavy Magic Mary tire to Maxxis Dissector to get less 600gr weight.
Today I test ride about 26km and 580m elevation gain, battery left 88%. Later will test the range with my 360Wh and 180Wh battery extender.
SO far the bike looks so good, slim and easy to handle downhill or uphill.

 

[Verdo07]

beautiful bike!!!
is the rear wheel 27.5 or 29?
Fox 36 150 o 160 mm?
if they made size L, I would have already bought it... I'm 182 and size M I think is a little small for me...
Congrats again on the bike

 

[temon10]

beautiful bike!!!
is the rear wheel 27.5 or 29?
Fox 36 150 o 160 mm?
if they made size L, I would have already bought it... I'm 182 and size M I think is a little small for me...
Congrats again on the bike

Rear 27.5
Fork Fox 36 160mm
M size feel like S, maybe u can ask them XL size

 

[ficorama]

I asked about the xl frame. but currently only M size.

 

[Verdo07]

Rear 27.5
Fork Fox 36 160mm
M size feel like S, maybe u can ask them XL size

thanks for the reply @temon10
but do you think a 29 wheel with a 2.4 tire will fit? on the manufacturer's website it says "29x2.6" but from the photos it seems that it is very narrow already with 27.5...

 

[Verdo07]

I asked about the xl frame. but currently only M size.

Hi @ficorama , how long ago did you ask about sizes? Thanks

 

[Adam Anderson]

Hi @ficorama , how long ago did you ask about sizes? Thanks

there is size M only. And no more sizes' plan in the near future.

 

[Verdo07]

there is size M only. And no more sizes' plan in the near future.

did they really answer you that way?
I asked at the end of last year and they hadn't been so categorical... well!!! anyway I don't understand this policy...if they made at least the L size they would cover 90% of the public...there will be 10 of us in this forum alone who want the L size of this frame...bah!!!
if they had at least only made the L they would have covered many more people given that the frame is also small...

 

[Adam Anderson]

did they really answer you that way?
I asked at the end of last year and they hadn't been so categorical... well!!! anyway I don't understand this policy...if they made at least the L size they would cover 90% of the public...there will be 10 of us in this forum alone who want the L size of this frame...bah!!!
if they had at least only made the L they would have covered many more people given that the frame is also small...

try the rest 4 choices

Log into Facebook

 

[Verdo07]

try the rest 4 choices

Log into Facebook

I'm sorry but I don't have Facebook...but if you mean to choose another frame I would take the LCE930 even if I see it as more enduro as a frame...and I would like it to be more Trail

 

[temon10]

thanks for the reply @temon10
but do you think a 29 wheel with a 2.4 tire will fit? on the manufacturer's website it says "29x2.6" but from the photos it seems that it is very narrow already with 27.5...

it will fit 29x2.40

 

[temon10]

Second ride 38km 597m elevation gain. Battery left 57% from 70%. So total distance with yesterday ride is 65km with 1122m elevation gain, battery left 57%. It's quite economical on battery consumption. Only using maximum of level 3 assist.

 

[temon10]

Tantan E67 with Bafang M820 😍

youtube.com

 

[Freda]

View attachment 140811 View attachment 140812
Finally I can finish my E67 build. Final weight with 540Wh DIY battery is 20kg. Little higher than expectation but with tight budget it's OK. Maybe I have to change that heavy Magic Mary tire to Maxxis Dissector to get less 600gr weight.
Today I test ride about 26km and 580m elevation gain, battery left 88%. Later will test the range with my 360Wh and 180Wh battery extender.
SO far the bike looks so good, slim and easy to handle downhill or uphill.

How do you connect the extenders? How do you balance the main battery to the extender?

 

[temon10]

How do you connect the extenders? How do you balance the main battery to the extender?

I'm using this dual battery adapter