Sorry, I only know that it’s 3p if that’s what you mean. I still barely understand the pulley system (different t counts, ratios), just that it’s important and determines how fast you go. If it helps it’s a stock B One Balrog X with pneumatics. If I knew where to go I would research how it all works
I just realized I haven’t even tried looking through the how tos… Guessing there’ll be an answer in there. I’m not used to forums ok
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There’s a calculator tool at calc.esk8.news that can be very useful for working out what combination of parts will work for you but it also looks a bit intimidating at the start
As a starting point, 40 tooth wheel pulley for 100mm wheels is common, if you go smaller you get more top speed and less acceleration and vice versa for bigger. What I’d try is find out what the kv of your motors are, the series count of your battery (10S, 12S, etc), and decide what your ideal top speed is. Then treat the kv, wheel size, and battery as fixed values and adjust up or down on the wheel pulley and motor pulley until you get a max speed you like. Not all tooth counts are common (or physically possible) but as a bit of a point of reference:
- Wheel pulleys in 36T and 40T are very common, 44, 38, and 32 are less common, and above 45 is quite rare in a mount that fits street wheels.
- Motor pulleys from 14-16 are super common, 17-22 is still pretty easy to find. Below 14 is both hard to find and a pain in the ass to use because with so few teeth they don’t make good contact with the belt and tend to skip
- Gear ratio is the thing that really determines your speed and torque, these are often expressed as 15/36 for a 15T motor pulley and 36T wheel, or as 1:2.4 or simply 2.4 (the value when you divide 36 by 15). So a big number means more torque and a small number is more top speed – if you want more speed you can increase the motor pulley, or decrease the wheel pulley
On the belt length thing; yeah you’ll probably need to change. There’s a belt length calculator somewhere if you google HTD-5m belt length, you work this out after the gear ratio has been decided, and you need to know the centre to centre distance of your motor mounts. This is, as the name suggests, the distance between the centre of the wheel axle and the centre of the motor shaft. If you can’t find info on your mounts online you can measure it by hand
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Thanks a lot!
Hey kids.
Is the rust on these bolts cause for concern?
Or just a nice coating?
M5 Socket Head Cap Screws, 12.9 Alloy Steel w/ Black Oxide DIN 912
Bought from Monster Bolts on eBay.
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Its called patina
Black oxide hardware annoys me how quickly it rusts. I go for zinc coated these days
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It not detrimental though right?
I like the patina.
Especially on here.
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Never caused any problems for me, my deck bolts always looked like that. I did have some bolts get stuck to a gear drive enclosure but for deck hardware I have never had an issue
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Nah man it would need to get a LOT worse than that to be an issue, its all good
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The rule i got taught is that 10mm of rust is 1mm steel corroded, so you should be good still 
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Rusty hardware makes me twitch
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I replaced all the hardware on my OW XR with 12.9 black oxide from boltdepot.com and the day after I got caught in the rain for 5 miles it all rusted like that, but it hasn’t gotten worse once a thin layer built up
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Hi, so I am building my first DIY board and I got an ESC and motors from my friend, but I need to find a battery for it.
My brother said this uses 22v batteries, but I’m hoping i can use one of my 36v E-scooter batteries
(sorry for the bad images, but If these images aren’t enough please just say)
There should be jumper pads you can bridge on the PCB. 3 different ones.
6s
7s
10s
You use 10s for a 36v (42v max charge) pack.
could you explain where I would find those? would I have to take of the green tape or?
Yeah it’s gonna be under the fishpaper
ahh okok.
Are those jumper pads here or would i find them on the PCB under this
because I have no idea how to deal with this white thing
Look where the phase leads are, there are 2 bridgeable solder pads labeled 6s and 7s, see on yours how the 6s is bridged? At the moment you have it in 6s mode so 25.2 max, if you desolder it then it will be 42v max
another noob question, what are phase leads, and where do you see the 6s and 7s? I’m blind as a bat with these things
wait i found them