yes, but…. this is based on idealized view that engineers design sth that is „100% accurate for 36V” while I believe the real approach is to design sth that is „~95% accurate” but cheap so that it will statistically break right after the warranty period
It absolutely will. Heat is dominated by I, not r, because power dissipation is p=i^2*r. The dominant heat sources will be from the motor and motor controller. They cant just go and use double the size winding wire on the motor and the motor controller switching losses are not going to be different.
I can tell you after long climbs, the outer housing temp is warmer than I would like, roughly 40-50c. That translates to significant operating temp rise on internal components, and junction temps are going to be through the roof. This was on a relatively cool ambient day. The rule of thumb is for every 10C operating temp rise, it roughly halves your lifespan of components. I dont hold my breath that the designers did any thermal analysis on this in terms of longevity. Theres no disputing that the 48v system will run cooler. The real question is whether or not that translates to premature failures. The 48v system will also be more efficient due to less thermal losses. Just my opinion backed by 20 yrs of power system design in aerospace and ev oem experience.
The mullet should feel better in the steeps. Also make it feel a bit more slashy.
You might have a loose connection. Since the only way the system measures soc is through voltage, you will only see big drops like that on a high resistance connection when you load the system. At rest or low current, you wont see those voltage drops.
All the conditions really need to be known before one can speculate. Bafang said that these were not designed to operate in Boost for extended periods of time.
Myalterego, did you ever get your flaky torque sensor or whatever issue you had fixed?
I don't think this is the case. This doesn't happen during high load but rather right after high load ends, like right after steep climb in B mode. I believe the battery level was roughly static during the climb and dropped after the load ceased. TBH I've seen such behavior once with chinese powerbank that had faked capacity. It would charge the connected device with power level indicator gradually decreasing until at approx. 70% it would suddenly drop to 0 and shut down. This worries me that the cells used by SZZT might be poor quality or damaged. I'm going to ask Jean about this but vision of sending the battery back to China for inspection and warranty replacement is sth I'd very much like to avoid. This would leave me without my new toy that I already started to like a lot (except the headset
) for the most of the riding season.It really depends on how often they sample voltage to update soc. The fact that its after a heavy load is suspicious. Bad cells with less than advertised capacity do not have ocv recover later after it rests. If you are indeed at the knee of the curve, your ocv would stay consistently low and your soc % would also stay low. However you could be correct if ir characteristics of the cell are poor. That would have similar behaviors to a bad connection. Both would have correlation with a high load put on battery. The thing is, bad connections are free to check, so why not check. Bad ir characteristics of cells is going to be harder to troubleshoot and rectify with supplier.I don't think this is the case. This doesn't happen during high load but rather right after high load ends, like right after steep climb in B mode. I believe the battery level was roughly static during the climb and dropped after the load ceased. TBH I've seen such behavior once with chinese powerbank that had faked capacity. It would charge the connected device with power level indicator gradually decreasing until at approx. 70% it would suddenly drop to 0 and shut down. This worries me that the cells used by SZZT might be poor quality or damaged. I'm going to ask Jean about this but vision of sending the battery back to China for inspection and warranty replacement is sth I'd very much like to avoid. This would leave me without my new toy that I already started to like a lot (except the headset
....the new external wires frame conversion showing for a sunset ride. In this case, it's function over form. With a little extra bling
ZS56 headset from Hope... precision stuff too. 
Do you have the link of your hope headset , i am getting annoy with my headset knocking sound.Finally after a month down for repair
View attachment 137768
See my separate thread if interested in my process.
20twentystore.com
How was it getting the cups out of the frame to install the hope headset?Finally after a month down for repair
View attachment 137768
See my separate thread if interested in my process.
thanks for the link , its has two version zs56/28.6 and zs56/38.1. I believe the 28.6 its our fork tube size. Standard fork tube its 28.6 right?Pick N Mix Headset Top
Pick 'n' Mix headsets to suit pretty much every modern mountain bike set up. Choose top and bottom cups separately to get the right fit for your bike, and knock yourself out with 7 different colours to choose from. Hope headsets use custom stainless bearings and superb seals to deal with the...
My earlier frame version didn't have them fortunately. I was surprised when you said that SZZS glued them in.
Yep ZS56/28.6.
i think my headset also glue in CUP type. which we only need to install the headset bearing itself without lower bearing cup ONLY need to install Bearing top cover.
Unfortunately the 52mm diameter bearing is not a common size. Most of the headsets use a much smaller OD bearing so you would need to change out the cup. Its the reason i am still using the szzs headset and havent converted to cane creek yet.
Yeah, I think it's the upper bearing cup that's the issue. Once, I installed the Hope bearing cup no more slop.
Nice.
great. please can you mesure the max shoks length ans travel available with this link. thanks
Do u have diagram or picture how to measure the available travel. As my shock stroke it's only 52.5mm
without the rear shock, you measure shock fixation axles center distance with suspension fully open and fully closed (limited by swing arm/basis articulation construction).
