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  1. Drunkskunk

    Spring or air??

    Shocks are a disposable wear item, and easily replaced. Get the Air shock if it interests you, but know you'll be replacing it eventually. it will probably "feel" better, but that comes at a bit of a trade off with higher maintenance, always needing to check and correct the air pressure. Air...
  2. Drunkskunk

    Why fat tires on a street ebike?

    Fun. That's it. They're just fun. They are pointless on the street, but fun things often are. Unicycles, Rollerskates, Horse drawn carriages... It's all just as useless and just as fun for the same reasons. At low speeds, fat tires offer a very cushy ride, but at normal bike speeds, it's a...
  3. Drunkskunk

    Basic Question

    The XT90 is just a superior connector for any hobby grade project. They have been tested to handle up to 270 amps for 10 seconds*, far more than a Powerpole will take. They're also smaller, non-reversible, and I've found they suffer corrosion less. There is also an anti-spark version to combat...
  4. Drunkskunk

    Is this a lie?! False Avertising

    No. As was pointed out before, this is a 3p pack, meaning it could be a 7.8ah pack, if it was built with proper 3.7v 2.6ah >20c 18650 cells. Amp hours times volts is watt hours. So it would be a 374.4wh pack. -IF it was built with quality standard grade cells. For the battery claim to be...
  5. Drunkskunk

    Any way to convert a rim brake fork to disc brake?

    I've forgotten, did the DHO come out before or after the dual crown Judy? I've had a mid 90's 100m travel Judy for so many years that I've worn out a couple of bikes, rebuilt it, and moved it on to the next bike. I modded them slightly to take a 29er wheel when there were zero 29er forks on the...
  6. Drunkskunk

    Any way to convert a rim brake fork to disc brake?

    ever4ything on Sram's website says that model should be disk compatible. Have you contacted Sram/Rockshox to see if they can help identify what you were sent? If it's a compatible model, maybe you can just switch the lowers. Otherwise, sell the fork. Nothing you can do to safely add disk...
  7. Drunkskunk

    Crash Thread - lucky

    I told this story elsewhere, but I should immortalize it here for humility reasons... I recently had a stupid low speed wreck. 20" front tire found a hole in the dark and stopped dead from like 10mph. The rest of the bike and I didn't. I landed on my head and was knocked out in the street, in...
  8. Drunkskunk

    BBS02 Vs Crystalyte Rear Thru

    On the frame you listed before, I don't think the BBSHD will fit due to the way the downtube is shaped. Also, the seat is set far back due to the bike's geometry, so adding more weight to the rear will more adversely affect handling. Meaning a heavy rear hub motor is a bad idea. The downtube...
  9. Drunkskunk

    Rear Derailleur Compatibilty for 5speed

    I doubt it will as the cable throw won't likely be enough for the 5 speed rear. But you can try it. If it's not indexed, there's no harm in trying.
  10. Drunkskunk

    Rear Derailleur Compatibilty for 5speed

    Standard 7 speed is 5.0mm spacing. Standard 5 speed is 5.3mm spacing. They aren't comparable, but it's close enough to "work". However, you will only be seated on 1 gear correctly, and all the others will grind. That will eventually lead to sprocket and chain failure, and isn't so healthy for...
  11. Drunkskunk

    Largerr shunt for power?

    The Grin Shunt is a 50A shunt, that can handle 100A peaks. There is no voltage rating as shunt resistors can handle thousands of volts. If you plan to really use the full power of that Q205, I would look for a shunt who's continuous power rating is the same as the Max pow you plan to pull...
  12. Drunkskunk

    I need some help Wiring up my new controller to my new throttle.(images)

    Likely that's just battery voltage for the panel, however it's slightly possible that's it's a data connector for something like a CANbus data panel. Not likely, but possible. The way to tell is with a volt meter. if it has battery voltage, it's fine for your throttler. If it has 5 volts...
  13. Drunkskunk

    Solar?

    I've got a bike project coming up that needs low voltage solar. I don't plan to run the motor or charge the main battery on solar, but I will have a lot of non-optimal surface area and a bunch of low powered things I want to add to the bike. Everything can be run at 5 volts, as most is USB...
  14. Drunkskunk

    Amp hour question.....

    Your math is right. 58v 12ah converts to 12v 58ah. I'm not familiar with that converter. If Justin/Grin says it's 95% I'd trust that, but there may be caveats to that. DC-DC converters rarely have a set efficiency that's the same over all voltages and loads. Some are rated for a specific...
  15. Drunkskunk

    Buy or build...

    only you can decide if you want to build your own or let someone else do it for you. ... yeah, i am biased.. but consider, there are really only 2 kinds of ebikers: Those who decide their storage room needs shelves, so they go to the store to buy shelves. Those who decide their storage room...
  16. Drunkskunk

    Hub motor under vacuum (in theory)

    The coil acts on the magnet ring, creating resonance that produces sound from the magnets as well. In things like Drones, where the brushless motor is used as a beeper for locating a downed drone, it's the coil acting on the magnet to vibrate the outer ring, not the coil it's self that produces...
  17. Drunkskunk

    Increasing top speed by overvolting?

    Your speed Unload VS loaded is about right for a 48V kit. You should pick up a bit more speed from a Lithium battery over your lead acid battery, because of less voltage sag under load, but not much. Running both 48 volt batteries in series would get you over 45mph. But 40mph takes roughly 3...
  18. Drunkskunk

    Custom frame.

    If you were going with a traditional lugged style frame, then brazing makes sense. If you're going with something more modern, MIG or TIG makes far more sense. 4130 is easily welded. You aren't going to find a "drop-in" suspension worth using. there are far too many variables in suspension...
  19. Drunkskunk

    Forward exiting vs rear exiting horizontal drop outs

    While it's really a non-issue, as both dropouts are fine, the Straggler's dropouts are going to be slightly stronger against motor axle twist than the Ogre. Of course, you need to use torque arms with either, so the slight advantage is moot. The rear opening dropout would make it easier to run...
  20. Drunkskunk

    Advanced Mode Blix eBike?

    Cool. Glad it worked out.
  21. Drunkskunk

    LYEN 18FET Max Amps?

    As the others have said, it really depends on the motor, how it's being used, and a bunch of other things, like does it have the buss bar mod, does it get good airflow, are you laboring it at part throttle, or at full throttle.. I used an Lyen 18 FET on my Monster bike. I slowly upped the power...
  22. Drunkskunk

    Advanced Mode Blix eBike?

    Welcome to the forum. On page 10 of this manual it explains how to get into advanced settings. page 12, #12 tells you how to set the max speed. http://www.shinga.nl/wp-content/uploads/2016/02/Manual-Shengyi-LCD-display-januari-2016-V1-EN.pdf
  23. Drunkskunk

    Large front/small back wheel

    You can take things to the extreme, but it's not likely to be something you would enjoy. While a small 12" wheel will give more torque, it will also suck at rolling over even the smallest of crack. you and any cargo you have on the back will feel every bottlecap in the road with a tiny 12"...
  24. Drunkskunk

    fixing flats..which brand?

    Rema Tip Top are the best of the best in my experience, but most glue on patches are fine. In a pinch, you can use the cement and a piece of old tube to patch a hole, as long as you aren't using an undersized tube in the tire. The peel-N-stick patches will often get you home, but rarely seal...
  25. Drunkskunk

    Can someone tell me if this diagram I made is correct ?

    That will work. However, it will be better for balancing your cells if you wire them up parallel first, then wire in series. Right now, you have 4 10s2p packs wired in parallel. the optimum way would be 1 pack of 10s8p. Unless you have a balancer for each of the 10s2p packs, then balancing...
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