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The 48v/ 17.5Ah battery case is probably set-up for (13) x(5) = 65 batteries, probably 18650 cells would be my guess. To see if a 52v 17Ah case would work do this. Get some penny’s and some nickels, like 100 of each. The diameter of a penny is about the size of an 18650 cell, the diameter of a...

JRA is your bike using the 2300w version? Best case for 52v. Best case for 48v. 2300w ÷ by 58.8v (100%) = 39.1amps 2300w ÷ by 54.6v (100%) = 42.1amps 2300w ÷ by 55.4v (80%) = 41.5amps. 2300w ÷ by 51.5v (80%) =...

Look at you rockin the wren! Kevin and Russ are great to deal with. I used to ride their forks until I couldn’t get the size I needed for my bike at the time and went to the dark side. Great company and the owner is top notch.

Looks good. On the battery‘s I built for my buddy I used the Daly 50a bms to handle the additional current using 52v. Im sure the battery your having made is using 21700 cells as they are the best bang for your buck. I like the Samsung 50E.

If your 2300w motor is the ultra motor with the ArchonX1 upgraded controller I think your out of luck as far as swapping out the controller for a stock version. From what I remember Mr. P told me that they somehow had to “pair the software” between the two units ( motor and controller ) for them...

Well bad news as far as the spring replacement fixing the issue. Didn’t think it would make much difference but know he knows. So it looks like he’s gonna go for the 3x3 hub but that’s going to be a process to get the hub as the only shop in the US is in Colorado. Don’t know if they have to have...

It’s funny when my buddy ordered his frame and motor he upgraded the motor for 2300w. So he has 5 modes for eco and 5 modes for sport ( higher watts). He only ever rides in the eco mode as the higher range is way too much. So he wasted his $ on getting the upgraded wattage. Were gonna do the...

Well that’s good to hear about the springs. He recieved them yesterday so we’ll probably swap them out today or tomorrow and maybe get lucky. He’s allready looking at another hub if this one doesn’t pan out. I think there called 3x3 bike hubs. 9 spd and like 554% ratio plus it’s rated for 250nm...

Hey Tom just wanted to report that my friend that has the Rohloff on his Ultra powered bike is now having issues with it slipping intermittently when in gear. Not necessarily when under max load like when climbing but also on the flats just cruising along. We were’t sure if it was the hub or...

On my levo which I know is different I just hold down the “-“ button for a few seconds and the trip resets. What bike model? What Display model?

Absolutely correct. Just like most products never buy the first series production let them work out the bugs by someone else. Seems like most manufacturers have “proprietary systems” for their drive systems anyways. Either in the motor mount or battery storage. So we’re kinda stuck there. Hell...

DJI or MGU Pinion when availible looks to be my next bike. Decisions decisions.

To finally answer this question which I can see is almost 4 yrs old. Yes you can for testing purposes only. My buddy just brought over his OLD e bike which has a bbshed motor and an old mag mount shark type battery and told me it doesn’t work. Started off as usual testing various components...

Bummer. What air psi are you running in your tires?

Unless your hubs have the same exact dims you will need shorter or longer spokes. Some shops have the ability to cut them shorter for you ( for a fee ) and make them usable. Most nipples are reusable as well just add a bit of oil to the threads of the spokes when assembling. If your destroying...

Possibly we are both correct. Maybe there is a "minimum" % threashold amount needed to flip the # on the cycle section in the App. I usually run mine down from 100% to 20-40% and then charge back up to 100%. I did ask the Specialized guy (via e-mail) about my scenario as far as states of charge...

OK I rode the bike twice since I last posted. Charged back up to 100%, typically used 60-70% each time. My App now says 11 charge cycles. I checked it after the first charge and it registered 10. Again just my experience with this bike, others may vary but a tech at Spec. confirmed that what I...

Having the % scale selected on your display instead of the actual voltage is always suspect as far as knowing battery capacity status. Swap out a different display and see if there’s any difference in the readings. See if the problem follows the bike or the battery. Verify Your output voltage on...

Imchid I quickly checked out the bike you referenced in your post above and having a battery of a specific design inside of the down tube fitting up a replacement one is a bit of a challenge. Most of the packs I build fit inside the main triangle area connecting directly to a pigtail from the...

PCeBiker just to clarify something. The BMS units I use are rated for 48v but they also work for 52v as well. All the battery’s I make are 52v. I used to use 18650 cells but the price dropped on the 27000 cells So I use those primarily now. The battery I use the most is 27000 cells and is 30ahr...