SZZS specific CEF50-main thread (initial builds and troubleshooting related only)
- Thread starter TCFlowClyde
- Start date
What is the bronze thing under the stem? Nice job on the cable routing.
Myalteregohamish
Active member
Looks like the bottom side of the stem.
hi. which items do you use to modified forks angle ? it's seem you have reduced the angle ? how beaves your bike in technical single track downhill ?
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TCFlowClyde
Active member
- Thread starter
- #3,065
Does anyone have the motor guard weight? Linda doesn't know.
Just curious to compare to my carbon mod...
Just curious to compare to my carbon mod...
TCFlowClyde
Active member
- Thread starter
- #3,067
Thanks.
Is that the newest one, generation 3?This is the old versionThanks.
Myalteregohamish
Active member
FYI, Linda reached out to me proactively on the motor covers. I got to be honest with you. I’m really impressed with this company and this relationship we have as a group with them. it’s been a lot of fun to have a partner on a DYI project. @mike_kelly I mentioned you to Linda and she knows you by name, pretty great.
TCFlowClyde
Active member
- Thread starter
- #3,070
See
This convo happened after the second Gen broke on me and after I strongly suggested to Linda that SZZS make a full carbon guard. And to boot with the 3rd Gen, they are not able to stress test it because their testing machine is "down". Then they want the consumer to pay for it rather than warranty it straight away. They're having consumers beta test it I guess? In sum, not so impressive on the motor guard, even a little unethical, but hey it's DIY.
I agree support has been good on my frame warranty replacement (which was damaged out of the box). 5
. They balked on my chainstay replacement and took some convincing 4 . 0 for quality control on sending me the shorter main pivot bolt at the outset. And was luckily to have one fabricated locally rather than wait another 3-4 weeks for shipping the proper size. But again it's tough to ride without a working motor cover.
It also looks good on their new upper headset I just installed. It appears like an improvement that's far easier to set up, looks to be better sealed, and has a custom slot to fit the chunkier display plug. 4 (I didn't bother with a warranty for a new display cable and old headset for sake of time).
Sorry to sound overly critical on this one. However, SZZS has failed fully so far on this piece of important bike protection. - 1
Jus' say'n hoping Gen 3 plastic works, given absolutely no stress testing...
Yet, Linda disclosed they knew the first motor guard (Gen 1) was really weak...it broke with their pro rider when he was testing the frame. He recommended the protective armor guard be used to help mitigate the material flaws. But they still launched with the error anyway.
This convo happened after the second Gen broke on me and after I strongly suggested to Linda that SZZS make a full carbon guard. And to boot with the 3rd Gen, they are not able to stress test it because their testing machine is "down". Then they want the consumer to pay for it rather than warranty it straight away. They're having consumers beta test it I guess? In sum, not so impressive on the motor guard, even a little unethical, but hey it's DIY.
I agree support has been good on my frame warranty replacement (which was damaged out of the box). 5
. They balked on my chainstay replacement and took some convincing 4 . 0 for quality control on sending me the shorter main pivot bolt at the outset. And was luckily to have one fabricated locally rather than wait another 3-4 weeks for shipping the proper size. But again it's tough to ride without a working motor cover.It also looks good on their new upper headset I just installed. It appears like an improvement that's far easier to set up, looks to be better sealed, and has a custom slot to fit the chunkier display plug. 4
(I didn't bother with a warranty for a new display cable and old headset for sake of time).Sorry to sound overly critical on this one. However, SZZS has failed fully so far on this piece of important bike protection. - 1
Jus' say'n hoping Gen 3 plastic works, given absolutely no stress testing...
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Does somebody have noted the space avilable (the 2 width) for battery in frame ? I'm too lazy to remove motor to mesure 
700W was too much (18% for 1000 D+) i will never use more than 50%, i will be phisically HS before. I whould see to install 480 W (and win 1Kg)
700W was too much (18% for 1000 D+) i will never use more than 50%, i will be phisically HS before. I whould see to install 480 W (and win 1Kg)
Here are the measurements that Bafang provides for the BT014 in their catalog.
A=470 B=52 C=63 for the 43v
A=470 B=52 C=63 for the 43v
Off Topic but I am happy with my CMF16 hardtail frame from Zhaosheng
It fit inside the CEF50 ?
Neeko DeVinchi
E*POWAH Elite World Champion
Yes
You should have the mounting plate for the frame to attach the battery.
The only thing I'll add is that you may want to use insolation foam, as the space between the interior of the downtube and the battery is roughly 20mm on all sides. Without the foam, you'll hear a rattle between the battery and cables within the downtube
Yes
Thanks. that would mean that space availble is more than A=470 B=52 C=63, 54 X 65 ? I plan to insert battery whitout casing, only fixed upper and lower (alike i have done on the LCES1075), not verticaly along the diagonal tube.Yes
You should have the mounting plate for the frame to attach the battery.
The only thing I'll add is that you may want to use insolation foam, as the space between the interior of the downtube and the battery is roughly 20mm on all sides. Without the foam, you'll hear a rattle between the battery and cables within the downtube
In fact i have measured item build to support the battery, i have 80mm width between each motor fixing point (and more for the battery space). Enough to pass 75mm battery. It's that i wanted to know b efore ordering one.
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Myalteregohamish
Active member
Have you guys seen this? Looks like the same company.
x.alibaba.com
Full E-bike 29er Carbon Fibre Suspension Disc Brake Electric Power Assistance Bicycle Frame Mtb With Shim.ano Ep8 Mid M - Buy Bike Frame Bicycle,Frame Carbon Suspension,Custom Bicycle Frame Product on Alibaba.com
Full E-bike 29er Carbon Fibre Suspension Disc Brake Electric Power Assistance Bicycle Frame Mtb With Shim.ano Ep8 Mid M - Buy Bike Frame Bicycle,Frame Carbon Suspension,Custom Bicycle Frame Product on Alibaba.com
It is...
The interesting part is that it is made for Shimano EP8. I would still choose the M820 having owned both tho.
also they are now offering new custom batteries from ZS. The BT 480 (48v) and the BT 410 (43v) for the CEF50.
The interesting part is that it is made for Shimano EP8. I would still choose the M820 having owned both tho.
also they are now offering new custom batteries from ZS. The BT 480 (48v) and the BT 410 (43v) for the CEF50.
Have you guys seen this? Looks like the same company.
Full E-bike 29er Carbon Fibre Suspension Disc Brake Electric Power Assistance Bicycle Frame Mtb With Shim.ano Ep8 Mid M - Buy Bike Frame Bicycle,Frame Carbon Suspension,Custom Bicycle Frame Product on Alibaba.com
Full E-bike 29er Carbon Fibre Suspension Disc Brake Electric Power Assistance Bicycle Frame Mtb With Shim.ano Ep8 Mid M - Buy Bike Frame Bicycle,Frame Carbon Suspension,Custom Bicycle Frame Product on Alibaba.com
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Myalteregohamish
Active member
I love my Shimano motor, I would be down for one of these in a heartbeat. I’ve actually got a request for a quote into Linda.It is...
The interesting part is that it is made for Shimano EP8. I would still choose the M820 having owned both tho.
also they are now offering new custom batteries from ZS. The BT 480 (48v) and the BT 410 (43v) for the CEF50.
Let us know the result of the inquiry.
TCFlowClyde
Active member
- Thread starter
- #3,084
Is the EP8 a full 85Nm or the RS60? If the 85Nm I think I'd go with Shimano for more torque but lose the DIY repair...tradeoffs. Weight difference if full EP8 (2.7 kg) would be a minus (.882 lbs). but noise reduction on the ramp up for both Shimano is a plus. Although, the M820-75Nm (2.3 kg)is tolerable, be nice to have less whine.
Also, I noticed the frame has no extra power button hole in the top tube-bonus!
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TCFlowClyde
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- Thread starter
- #3,085
Looks like the full EP8. 630Wh battery.Is the EP8 a full 85Nm or the RS60? If the 85Nm I think I'd go with Shimano for more torque but lose the DIY repair...tradeoffs. Weight difference if full EP8 (2.6 kg) would be a minus (.667 lbs). but noise reduction on the ramp up for both Shimano is a plus. Although, the M820-75Nm (2.3 lbs)is tolerable, be nice to have less whine.
Also, I noticed the frame has no extra power button hole in the top tube-bonus!
I'd be interested in the future...but tapped out for awhile with the CEF50.
Plus, I could again overstroke it to 165 rear and 180 upfront for another 27.5+ x 3.0/2.8 build!
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TCFlowClyde
Active member
- Thread starter
- #3,086
EP801 Mid-Ship Drive Unit US for CEF52.Looks like the full EP8. 630Wh battery.
Plus, I could again overstroke it to 165 rear and 180 upfront for another 27.5+ x 3.0/2.8 build!
View attachment 131043
Just found this item on AliExpress. Check it out! $704.85 15%OFF | SHIMANO STEPS EP801 Mid-Ship Drive Unit US Class 3 Device Supports New CAN and ACC Ports DU-EP801 E-bike Parts
SHIMANO STEPS EP801 Mid-Ship Drive Unit US Class 3 Device Supports New CAN ACC Ports E-bike Parts DU-EP801-CRG for Cargo Bike - AliExpress 18
Smarter Shopping, Better Living! Aliexpress.com
a.aliexpress.com
TCFlowClyde
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- Thread starter
- #3,087
My final analysis CEF50 V. CEF52: gain 10 Nm of torque but lose 90 Wh of battery juice and probably should buy a spare EP801 and spend an extra $800 plus an extender$?.
Cons:
Gain 0.887 lbs
Lose DIY serviceability, but buy another $800 buy spare motor
630 Wh battery, so lose 90 Wh and definitely need an extender or build a DIY 900-1000 Wh (maybe).
Pros:
Gain back full power 10 Nm. This is worth 2 cons IMHO.
BUT CEF50 wins it for now...it's a pound lighter and would cost less ($1k+?) due to range extender and spare motor.
Cons:
Gain 0.887 lbs Lose DIY serviceability, but buy another $800 buy spare motor 630 Wh battery, so lose 90 Wh and definitely need an extender or build a DIY 900-1000 Wh (maybe).Pros:
Gain back full power 10 Nm. This is worth 2 cons IMHO.BUT CEF50 wins it for now...it's a pound lighter and would cost less ($1k+?) due to range extender and spare motor.
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TCFlowClyde
Active member
- Thread starter
- #3,088
UPDATE: SZZS is checking on the battery size for the CEF52.My final analysis CEF50 V. CEF52: gain 10 Nm of torque but lose 90 Wh of battery juice and probably should buy a spare EP801 and spend an extra $800 plus an extender$?.
Cons:
Pros:
BUT CEF50 wins it for now...it's a pound lighter and would cost less ($1k+?) due to range extender and spare motor.
Currently no Shimano batteries are available, but should be able to make a bigger 720Wh battery for the +10 Nm of torque.
Salesperson is checking TBD...
TCFlowClyde
Active member
- Thread starter
- #3,089
TCFlowClyde
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- Thread starter
- #3,090
Somebody should start a CEF52 thread today!
Thread 'Shenzhen Zhaosheng Carbon CEF52 using Shimano EP801 motor' Shenzhen Zhaosheng Carbon CEF52 using Shimano EP801 motor
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