E-S LMX 64 Bike Owners

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Re: E-S LMX 64 Bike Owners

Post by hkj » Jan 21 2020 8:17am

TorEddy, which chain ring brand/model did you switch to?

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TorEddy   100 W

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Re: E-S LMX 64 Bike Owners

Post by TorEddy » Jan 21 2020 9:33am

I bought the Sram Eagle X-Sync 104BCD Drev, Black, 38T
I didn't find to many to choose from in this size.

Image

https://bikeshop.no/sykkelkomponenter/d ... 0000091847

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bzhwindtalker   1 MW

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 21 2020 10:13am

We also have some N/W 38t in stock if you guys need one with some other spares.
Adam

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Re: E-S LMX 64 Bike Owners

Post by hkj » Jan 22 2020 6:17am

TorEddy wrote:
Jan 21 2020 9:33am
I bought the Sram Eagle X-Sync 104BCD Drev, Black, 38T
I didn't find to many to choose from in this size.
Thanks, ordered :)

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 22 2020 12:46pm

We had a little more delay on the beta belt kits, as we added some more improvements before shipping them.
Added some stainless steel flanges to the back sproket, and better hardware for the spring and suspension pivot bolt.
Some more details tomorow, with shipping planned for Friday.

Adam

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 22 2020 5:54pm

Thanks for the update Adam.

Looking forward to riding without cringing at the noise or having to back off when approaching people from behind so as to not scare them.

Cheers
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Re: E-S LMX 64 Bike Owners

Post by hkj » Jan 23 2020 8:58am

Sounds good Adam.

Will you include any instructions how to replace the chain with the belt kit, how much torque the bolts should be tightened with etc etc?

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 23 2020 11:27am

Yes, here is the WIP document to see what is involved in this swap
https://docs.google.com/presentation/d/ ... sp=sharing

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Re: E-S LMX 64 Bike Owners

Post by Simonten » Jan 23 2020 3:12pm

The belt kits look great Adam.

Dose the belt kit save any weight or is it similar to the chain drive?

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Re: E-S LMX 64 Bike Owners

Post by Joe » Jan 24 2020 4:56am

Hi Adam
In the procedure page 10. You are using a "key Lug" I'll be needing one. On the internet I didn't really find anything.
What's the size and whats the real name for this key? I'm getting to see a lot of pictures of spanners, but not the one I need.
In the mean time. I have found out that this is a "Center Lock", but none look like the one I need. I think the closest I find, is a rear suspension adjustment spanner.
Attachments
Motorcycle-Shock-Absorber-Suspension-Shocker-Adjusting-Tools-C-Spanner-Wrench.jpg
Motorcycle-Shock-Absorber-Suspension-Shocker-Adjusting-Tools-C-Spanner-Wrench.jpg (980 Bytes) Viewed 4037 times
My rule of thumb.
Everyone should be respected. No need for a bad name in the ebike world. If we all respect other users than we never get noticed. So far so good.

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 27 2020 9:16am

Hi Joe, yes a shock adjustement spanner should work. We had some special ones lazer cut, if you really need one we could sell you one but it would be cheaper to find a standard one.
Search for a 55mm hook spanner.

The nut has a outside diameter of 55mm. Here is a picture with a key tool we also use on the mill.

Kits are packed and being shipped.
IMG_20200127_143603 (1).jpg
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Adam

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 28 2020 1:02am

Looking great.

Question about torque through it...what was the max phase amps you tested it with and how much above it would you think is ok?
Not looking for a guarantee, just don't want to snap my belt straight away. :P

Cheers
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
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Re: E-S LMX 64 Bike Owners

Post by hkj » Jan 28 2020 5:56am

bzhwindtalker wrote:
Jan 27 2020 9:16am
Adam...
Adam, what's the take on beta testers for the belt drive? Do you have a list allready? How many kits are you sending out?

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 28 2020 6:20am

5 kits made, one for us is under testing and the rest have already been reserved/sent out to testers.
We will be waiting for long term feedback to produce more kits. Probably in MAY we can deliver final kits if the feeback is good.
Adam

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Jan 28 2020 6:23am

Cowardlyduck wrote:
Jan 28 2020 1:02am
Looking great.

Question about torque through it...what was the max phase amps you tested it with and how much above it would you think is ok?
Not looking for a guarantee, just don't want to snap my belt straight away. :P

Cheers

As said before, it has been tested to 166A phase (stock LMX setup)
More than that is not something I would reccomend...

We tried full amps+brake at zero RPM a few times without issues.
The serial 14T sprokets should also cause less harm and wear to the belt than the first test one we did on our small CNC, as we altered the teeth profile to match the belt on this low diameter.

A spare belt has been dispatched with your kit as requested.

Adam

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 28 2020 6:48am

Thanks Adam...forgot you already mentioned that. :oops:

And thanks for the spare belt! I think I will drop it down to 175A (from 190 currently) and see how it goes.

I really like my mode 3 being able to lift the front wheel so we will see how I go. :mrgreen:

Cheers

p.s. for those watching I did pay for the spare belt, it was not a freebie...although without knowing what it costs I just added a hoodie to my order and asked for it to be replaced by the belt. :)
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Ebike Garage - My YouTube Ebike ramblings.

High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

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Re: E-S LMX 64 Bike Owners

Post by SlowCo » Jan 28 2020 8:12am

Cowardlyduck wrote:
Jan 28 2020 6:48am
And thanks for the spare belt! I think I will drop it down to 175A (from 190 currently) and see how it goes.
No, no, you will have a spare belt so you need to test out where the limit of the belt is! Just increase the phase amps until the belt looses its teeth or breaks so other owners know how far they can dial up the amps... :twisted: :mrgreen:

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Re: E-S LMX 64 Bike Owners

Post by st35326 » Jan 28 2020 8:31am

SlowCo wrote:
Jan 28 2020 8:12am
Cowardlyduck wrote:
Jan 28 2020 6:48am
And thanks for the spare belt! I think I will drop it down to 175A (from 190 currently) and see how it goes.
No, no, you will have a spare belt so you need to test out where the limit of the belt is! Just increase the phase amps until the belt looses its teeth or breaks so other owners know how far they can dial up the amps... :twisted: :mrgreen:
Feel like there are Sur-Ron guys running belt drives at 2-3x those power levels and hitting 70mph. On this bike its probably more likely dirt or mud compromises a tooth than power.

https://www.youtube.com/watch?v=I8Ia6P1dBBI&t=606s

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Cowardlyduck   100 MW

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 29 2020 3:23am

SlowCo wrote:
Jan 28 2020 8:12am
No, no, you will have a spare belt so you need to test out where the limit of the belt is! Just increase the phase amps until the belt looses its teeth or breaks so other owners know how far they can dial up the amps... :twisted: :mrgreen:
Well you make a good point....maybe I will try up to 200A, but no more than that or I risk breaking other parts of the bike besides the belt.
st35326 wrote:
Jan 28 2020 8:31am
Feel like there are Sur-Ron guys running belt drives at 2-3x those power levels and hitting 70mph. On this bike its probably more likely dirt or mud compromises a tooth than power.

https://www.youtube.com/watch?v=I8Ia6P1dBBI&t=606s
Yeah, but what belt, sprocket etc are they running? You can't compare it without the details being the same.
Either way, I can't see the controller, motor, battery combinations on the majority of LMX 64's allowing much more than the 200 phase amps I've already pushed mine to. I mean you could, but really it will just be a game of chasing the next weakest link forever after that.
That is exactly what I did on my Stealth Fighter for over 7 years before I finally got it dialled in. A painful experience I don't exactly want to repeat on the LMX 64.

Cheers
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Ebike Garage - My YouTube Ebike ramblings.

High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

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Re: E-S LMX 64 Bike Owners

Post by Simonten » Jan 29 2020 5:09pm

Great to see the LMX 64on the latest addition of Embn

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Cowardlyduck   100 MW

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 30 2020 2:49am

Simonten wrote:
Jan 29 2020 5:09pm
Great to see the LMX 64on the latest addition of Embn
Yeah, about time too. I've been telling those guy's to ride a 64 for months now.

Jump to 4min for the LMX part.

I also sent in some photo's of my LMX, but I think I did it the wrong way...will try again.

Cheers
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Ebike Garage - My YouTube Ebike ramblings.

High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

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Cowardlyduck   100 MW

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Jan 31 2020 6:08pm

My LMX 64 has finally met it's match! I will have to make a video of it, but I tried riding it up a local hill I had never considered rideable...and I guess it still isn't. I'm talking over 30 degree's steep with many large, loose rocks. I can barely walk up it, so it's not exactly a fair test, but I just wanted to see if the LMX could do it.
What stopped me was the motor overheating, shooting straight past 140C and didn't stop till reaching 160C :shock: Hope that doesn't do any permanent damage, but it seems fine after it cooled down.

Anyway, the hill I climbed was to see this:
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I'm keeping a close eye on it, but pretty safe where I am.

Cheers
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Ebike Garage - My YouTube Ebike ramblings.

High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

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bzhwindtalker   1 MW

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Re: E-S LMX 64 Bike Owners

Post by bzhwindtalker » Feb 01 2020 12:17pm

Those pics are impressive... Glad you were Fine durant those fires.

What whas the outside temp during your ride?
Normally the nucular with our config should be set to max 135 Celcius.

Anything above that puts the motor with risks of hall sensor dying.

We never actually killed the windings on any of those motors. We had however the phase wires short inside the casing on one of the 60mm ones on the 161h. That was climbing 100 meters of elevation on stairs with the 14-94t gearing, clearly asking for trouble^^

I am on holiday from work next week and will be riding in the Alps with the 64 with the belt and silixcon controller.

New vlog coming, a lot of things happening behind the scenes with the 64 homologated version and what it means for the lmx 64 offroad versions too.

Différent scenery for sure :
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Cowardlyduck   100 MW

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Re: E-S LMX 64 Bike Owners

Post by Cowardlyduck » Feb 01 2020 8:52pm

Thanks Adam.

Outside temp was around 37C so pretty hot. I haven't changed the Nucular config and the max motor temp is still set to 135C.

The motor did start to cut out at around 135C as mentioned, but I guess the thermal inertia kept it going up to 160C. Either that or the temperature sensor isn't right on the windings and there is some lag before it registers the winding temp.

It makes me wonder if there is anything that can be done to help keep things cooler. I was thinking about putting a thin, quiet 80mm or 120mm computer fan underneath the motor if it will fit and running it if off a small 12v DC-DC converter. That should help keep everything cool and run more efficiently.

What do you think?

Cheers
Custom made 18650/21700 battery packs

Modified Stealth Fighter - Force air cooled motor @ 6KW, Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Ebike Garage - My YouTube Ebike ramblings.

High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

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Re: E-S LMX 64 Bike Owners

Post by Merlin » Feb 01 2020 9:31pm

as much nice as a left-side-drive is.
the downside is you cant change gears to help the motor staying cool(er)

if you was on 14T front, switch to 12T. difference in climibing should be very noticeable.

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