M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

[TobyB]

has anyone tried running the 930 in a mullet setup with 29 front and 27.5 rear?

I'm going to build my one in a mullet, with a 170mm fork up front on my wife's and 180 on my build, coil shock rear and I'm looking at 160mm crank arms. I ordered the frame and motor 20 days ago (but paint will be a while) I can let you know when it arrives and I start the build. With a longer axle to crown on the fork it should keep the bb height fairly similar. It should make the head angle a little steeper and the also the seat angle by around 1 degree. I'm also planning to run a 32t chainring and 10 Spd rear cassette with a little less range (11-42 or something).

 

[brbr]

I'm going to build my one in a mullet, with a 170mm fork up front on my wife's and 180 on my build, coil shock rear and I'm looking at 160mm crank arms. I ordered the frame and motor 20 days ago (but paint will be a while) I can let you know when it arrives and I start the build. With a longer axle to crown on the fork it should keep the bb height fairly similar. It should make the head angle a little steeper and the also the seat angle by around 1 degree. I'm also planning to run a 32t chainring and 10 Spd rear cassette with a little less range (11-42 or something).

I don’t know where you ride but I have a 34t 10-50 and I’m switching to 32t, because sometimes I need this extra power in very steep climbs

 

[TobyB]

I don’t know where you ride but I have a 34t 10-50 and I’m switching to 32t, because sometimes I need this extra power in very steep climbs

I recently got an older Norco VLT range and I have only used the top cog a few times and the second cog is 42t, It was more that I could have a medium cage rear derailleur, my non e-bike is a Zerode with a belt and gearbox, I was thinking mainly for more clearance as some of these mechs now hang pretty low and also have a bit less unsprung weight with a smaller cassette too? I'd be running a 27.5 rear wheel that also makes a bit of difference to the gearing. I checked a calculation website and a 27.5 inch wheel with a 32t front and 42t rear cog cassette is almost the same as a 29" wheel with a 36t front and 50t cassette cog with one rotation of the pedals being 21" on both set ups.

https://www.mtbr.com/attachments/gear_chart_gear_ratio_relative_r2-jpg.1247299/

 

[brbr]

I recently got an older Norco VLT range and I have only used the top cog a few times and the second cog is 42t, It was more that I could have a medium cage rear derailleur, my non e-bike is a Zerode with a belt and gearbox, I was thinking mainly for more clearance as some of these mechs now hang pretty low and also have a bit less unsprung weight with a smaller cassette too? I'd be running a 27.5 rear wheel that also makes a bit of difference to the gearing. I checked a calculation website and a 27.5 inch wheel with a 32t front and 42t rear cog cassette is almost the same as a 29" wheel with a 36t front and 50t cassette cog with one rotation of the pedals being 21" on both set ups.

https://www.mtbr.com/attachments/gear_chart_gear_ratio_relative_r2-jpg.1247299/

I had no idea of that difference between the 27.5 and the 29!
Thanks for the link

 

[Goff]

Finish my build, pretty happy with the frame and motor, good quality.

 

[temon10]

Finish my build, pretty happy with the frame and motor, good quality.

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Bafang battery? Charger socket looks good, what type socket?

 

[Goff]

Bafang battery? Charger socket looks good, what type socket?

DIY battery

lXT-60 black XT60BE-F XT60BE-F.N.B model airplane battery nickel-plated 30A high-current safety female plug connector

 

[sandro817]

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

 

[TobyB]

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

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Looks great and that is impressively light!! Did you make the battery?

 

[brbr]

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

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Impressive!
Very nice light build

 

[sandro817]

Looks great and that is impressively light!! Did you make the battery?

Yes DIY internal battery 10s3p Samsung INR21700-50E 540 Wh + external 10s2p Samsung INR21700-50E 360 Wh

 

[temon10]

DIY battery

lXT-60 black XT60BE-F XT60BE-F.N.B model airplane battery nickel-plated 30A high-current safety female plug connector

Capacity?

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

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Impressive weight! Would U share battery configuration and how connect the extender??

 

[Tilt]

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

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The weight of the bike with 540wh I find it incredibly low it is certainly a record for this frame I would like a little photo of the weight nice bike well done

 

[savas]

Yes DIY internal battery 10s3p Samsung INR21700-50E 540 Wh + external 10s2p Samsung INR21700-50E 360 Wh

Please more details on the battery(case if any and how you attached it to the frame and probably a list of all the parts you used.Nice build!

 

[sandro817]

The weight of the bike with 540wh I find it incredibly low it is certainly a record for this frame I would like a little photo of the weight nice bike well done

 

[rezystor1990]

Normal version: 540 Wh battery 16.80 kg total weight with pedals

Please more details, list of all the parts you used. Amazing!

 

[sandro817]

Please more details on the battery(case if any and how you attached it to the frame and probably a list of all the parts you used.Nice build!

I have used a bottle bag and a magnetic (fidlock) mounting system

 

[Freda]

So getting some really nice builds here already! The ones that didn't buy the motor kit from light-carbon, where did you buy it?

 

[sandro817]

So getting some really nice builds here already! The ones that didn't buy the motor kit from light-carbon, where did you buy it?

RinsunMotor Official Store on AliExpress

 

[Tilt]

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well done, it's a record for this frame and this engine, well done again

 

[kimochi]

anybody tried full 27.5? is it possible with this frame?

 

[thaeber]

anybody tried full 27.5? is it possible with this frame?

That’s always possible. But the BB hight will be lowered significantly, appr. 20mm. And the BB of the frame is allready low. You could only compensate with longer shock (216mm) and longer travel fork with increased Axle to Crown length.

 

[kimochi]

That’s always possible. But the BB hight will be lowered significantly, appr. 20mm. And the BB of the frame is allready low. You could only compensate with longer shock (216mm) and longer travel fork with increased Axle to Crown length.

Nice. I was thinking of using 155 cranks. Not sure if 216mm fits? That'd be great if it does!

 

[thaeber]

Nice. I was thinking of using 155 cranks. Not sure if 216mm fits? That'd be great if it does!

You have to check it with the frame, or maybe someone here is willing to do with a 216 shock at hand. Then You have to be careful with shock stroke - 60 mm max I would guess, compressed length 156mm. @TCFlowClyde is running 210x55, compressed length 155 mm with no problems. (Yet ).
Edit: Uuupppssss - its a CEF50 frame - sorry. So You have to investigate shock stroke on Your own…

 

[KaroKönig]

I would like to introduce the mtb I made for my wife
Normal version: 540 Wh battery 16.80 kg total weight with pedals
Long journey version: 900 Wh battery 18,45 Kg total weight with pedals

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A very clever solution to avoid the spoke magnet

 

[brbr]

A very clever solution to avoid the spoke magnet

I did not even realise that!
@sandro817 Would you share the 3D file ?

 

[sandro817]

I did not even realise that!
@sandro817 Would you share the 3D file ?

Just dremel a carbon plate then glued an alluminium nut

 

[brbr]

Just dremel a carbon plate then glued an alluminium nut

It seems like it’s the best idea yeah

 

[rezystor1990]

Could you please provide a parts list? The weight of your bike is incredibly low. I was looking for light parts for construction, but I have 1 kg more weight than your bike.

 

[brbr]

Could you please provide a parts list? The weight of your bike is incredibly low. I was looking for light parts for construction, but I have 1 kg more weight than your bike.

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I think he has carbon crank arms!
Maybe lighter rotors as well.
The weight for the Lyric ultimate seems high also, is it a 160mm ?