Picture courtesy of TCFlowClydeWhat a neglected bike!That guy really needs to wash all that nasty dust off! Wait what? Oh, OK, I'm being told that's just after one short ride on his typical local trail system!
SZZS specific CEF50-main thread (initial builds and troubleshooting related only)
- Thread starter TCFlowClyde
- Start date
You can not connect an external battery to that port. It is only for charging and can't handle more than 2amps.
CEF50 External battery build
I took a chance on the CEF50 because I wanted a very light eMTB. Because of that I chose a light battery and planned to get an external battery to supplement the internal on long rides. Two things got in the way, Bafang is way behind on delivering internal batteries let alone their promised...
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48v 700wh
Charlypitillo
New Member
Hi, is the 700wh battery the one that comes with the frame? Do you know its weight? Are you getting a lot of autonomy from it?
No battery comes with the frame. You choose which battery you want.
Charlypitillo
New Member
I have already chosen it, it is 700wh and 48v, everything comes with the frame, I think, battery, motor and frame, it is made of jean
Yes, it is the battery that comes with the 48V 700Wh 4kg frame. Regarding autonomy, it depends on the type of ride. I ride XCM autonomy above 100km with 1500m of elevation, 10% single and 30% off and 70% eco.
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Charlypitillo
New Member
Charlypitillo
New Member
top weight components?
Charlypitillo
New Member
Has anyone weighed the 48v 700wh frame and motor assembly?size S
My components are really heavy, I left the light components on my XC bike. Here is the list:
- mt620 wheels
- exa form seat post
- shox deluxe 210x55
- fork durolux 36
- front tire hellkat 2 4
- back tire Ruban 2.4
- Rim protector
I believe it would be possible to reduce about 2kg for several $$$.
Charlypitillo
New Member
It has a smaller 480wh battery carbon case with 1.95kg.I'm going to try to leave it at 18 kilos
Charlypitillo
New Member
I'm looking for a FOX FLOAT X FACTORY 210X50 and I'd like to know if the 22.2x8* measurement that is stated in the geometry of the frame's shock absorber is the same above and below on the two sides where the shock absorber is anchored? Do you know if those bushings come with the shock absorber? There are many 210x55 shock absorbers for sale and few 210x50 ones and I see that many of you have mounted the 210x55 one. Does it fit the size S frame and 29” wheel well? I do XC and marathon and some trial sections, no enduro.
Charlypitillo
New Member
I like it with more battery, I do marathons and long runs
severoprisan
New Member
After a lot of thinking, I didn't bite the bullet. I'm afraid that I don't have the nerves to build the bike with all the potential hiccups. I wanted a light bike, with 140-150mm travel, but the price would be near a discounted Rise H20. Maybe the CEF50 beeing a downhill frame, it is an overkill for my style of riding.
Thank you all for opening my eyes
Thank you all for opening my eyes
A very reasonable decision given the current retail prices.
My wife did a test in the Montana mountains. A 22 mile ride with 2000ft constant elevation change with a 360wh battery. Had 20% left in the battery.
I regularly do 25km (~15miles) with 900m of elevation (~2950feet) and I'm almost every time in boost or S+, I got home with 20% left.
I'm really wondering if the eco mode would do it
How much do you weigh? are you trained? with my weight of 70kg dressed with a backpack I can travel 40/45 km and overcome 2,000 m of altitude difference in Eco/Tour (100/200w supplied) with sections in Sport (400w supplied). 48v 480wh battery with 43v firmware
75kg fully dressed, average to good physical level (I manage to do my 25k with 1500m elevation in 1h05min).
I understand I might have to reduce the total number of kilometers...
Tour 40% asphalt and 60% dirt road, no trails, 120km, 1800m elevation, 700wh battery.
Strava: https://strava.app.link/jskxSuzxSRb
Strava: https://strava.app.link/jskxSuzxSRb
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Could you talk more about the advantages of having a 48v battery and 43v firmware. Could it compromise the engine or battery?
Charlypitillo
New Member
Good route, I have ordered one to see how it is.
The advantage is that you get a significant increase in power and greater overrun. I have traveled over 1,000 km with this configuration without any problems. The disadvantage is that the battery charge percentage indicator will no longer be reliable.
In the Bafang M820 "engines" section we talk about it and you should also be able to find suggestions on which firmware to download if interested.
voigtkampff
Active member
Hey Guys, what's your longest / highest ride with the M820, even in Eco ?
I'm planning to do a 60+km with 1450m D+, I will have no other choice than staying in eco all along but I'm afraid it won't be enough. I'm running the Bafang 430Wh battery
78km with 2400m climbs on 480Wh battery, 92kg rider + equipment weight, eco mode including ~10km without any assistance on flats and downhills
Charlypitillo
New Member
What a good autonomy! I ordered the 700Wh one, which is heavier, and with these comments I'm considering ordering the 480Wh one and the extender option that they're going to release, Jean.
Charlypitillo
New Member
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