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  1. DrInnovation

    Help debugging a Crystalyte immediate start 20 amp board controller

    I've been reading multiple thread but could not find one that suggests anything I have not already tried. I have a Crystalyte 4012/409 hub and a controller for it. As a dual winding hub, the controller has a switch to determine which of the two windings it will use so its not built into the...
  2. DrInnovation

    Help Diagnosing BMS failure

    My BMS has failed (and took a headway cell with it). There was a broken sense wire as well so not sure if that cause it or happened when I disassembled the pack. Normally I plug the bike in every day (its my daily commuter). The bike was working fine before vacation but I left it unplugged...
  3. DrInnovation

    HuayuxinFeng Controller wuxing Trottle.. PAS Compat? LEDs?

    I have an bike kit I bought on craigslist. Have it hooked up and running but last week it cut out and the "three leds" (red=low, yellow=medium, green = high) showed only red and green (i.e. skipping medium) Does anyone have an idea what that indicates? Turning on/off did not reset, but...
  4. DrInnovation

    How to tell if I can upgrade to 48v

    I bought a used e-bike kit on craigslist. is 36v ampedbike kit with bottle battery. The Battery is toast.. I'll disassemble to see what cells I can reuse. and test the BMS. I won't use the bottle, and have lots of 18650s to build a new battery for my older lashout, which has a nice battery...
  5. DrInnovation

    How much friction in a Crystallite Hub? Overtightened?

    How much friction should there be in a hub? I know direct drive has more inherent friction, but I think my hub now has more than normal. Contact: I bough a used Crystallite 4012/4009 hub and build a bike around it. My original build thread has pic...
  6. DrInnovation

    Build with Crystalyte 4012/409 +Headway + HomeBrewMounting

    Just got an older used Crystalyte 4012/409 dual speed rear hub and as this is my first hub-based build I have some questions. First some expected background: I'm 5'9", 30" inseam and 200lb and generally carry 25lb backpack with computer and stuff. My primary goal is my daily commute which...
  7. DrInnovation

    Sunkist? is this a usable bike?

    Anyone have comments about this type of bike Seems like a odd design.. (maybe some weird worm gear drive? http://denver.craigslist.org/bik/5587511716.html
  8. DrInnovation

    Do potholes eat gears?

    I'm looking at upgrading from my LashOut (disk-brake chain side mount with Mac with currie planetary gear connection).. because I eat a planetary gear avery 1-3 months. As I am looking at a replacement, started thinking about what causes it. My hills (10%) and mass (200+backpack+bike=300)...
  9. DrInnovation

    what is in this bike (an elecTrek)? Voltage for hubs?

    Looking to replace my Lashout (it runs fine but I keep having to replace the planetary gear .. guess its my 200+ pounds and 10% grades.. (I'll fix it up and sell it for lighter people or flatlanders..) Looking for an inexpensive but reliable replacement. Can anyone identify this bike...
  10. DrInnovation

    Help needed: Converting Lashout/Rayos to Left-hand mid drive

    I've decided I'm tired of trying to keep the Lashout Planetary gear from being destroyed. I'm guessing its the torque from my hills, maybe combined with all all the bumps/potholes (I do ride it off road and over lots of stuff). So my idea (based on lots of reading here) is to reduce...
  11. DrInnovation

    Lashout/Rayous Ques. on Washers and Sprockets->Currie/Zip?

    I've been riding a Lashout for a while now and I've replaced the planetary gear 4 times. The last time it only lasted about 1 month. The internal bearing seems to wobble and eat the gearing to the bearing quickly. (The plenary gears themselves are fine, it the connect the the bearing shaft...
  12. DrInnovation

    LiPo Repack question.. restructure or adding extra cells?

    I am rebuilding some of my lipo packs. each pack had a cell that went bad and dragged the 3P group down below 2.7V (one to 2.3, another to 1.8 another to .85 and a 4th to .67 and 5t and 6th at .35 -- the latter three were from packs sitting on the shelf for quite a while until I thought about...
  13. DrInnovation

    is A123 8s2p 4.6Ah enough for 500W bike?

    My thunderpower-based Lipo pack is starting to show its age after a year on my bike (bought them in 2008 and used them for UAV... so >500 cycles now). My commute is short but steep so I max out my 500w 24v motor, so use 30A for 2-3 min of the trip that is 6-8% grades, whole trip is only...
  14. DrInnovation

    Problems with Lashout Planetary

    Hi.. looking on advice for dealing with my Lashout ebike (synergy/rayous parent, Currie cousin). It has a 600w MAC motor with integrated controller and a plantary gearing system that drives the #25 chain that is attached on the disk mounting. Bougth it used.. had a problem when the bolts...
  15. DrInnovation

    BMS sizing? SmartBMS quality? Group Buy?

    I've built a pack to replace my SLAs with some of my UAV Lipos.. (at least untill I get around to building an 18650 pack). Looking at adding a BMS for piece of mind and reducing my work to checking it every now and then instead of every charge to and ensure per-cell low-voltage protection...
  16. DrInnovation

    SLA->Li upgrade options? Celllog 8S on SLA?

    Background: I've been running my lashout (600w MAC +rear chain drive) on SLAs for a bit over two months. Two 12v12AH in series came with it; so I don't know their full history. I use it only uphill, my commute is +300ft and .8 to 1.5 miles depending on the route I take. A few days I run...
  17. DrInnovation

    Newbie questions Lashout and BB-2590 (30v) Batteries

    I'm a newbie on just getting into ebikes. I moved and my commute is now 1 to 2 miles (depending on path) but has some 8 and 10% grades, so while I can do it on a bike my heart is racing and I arrive at work sweating. I don't really want/need speed or really long range and want some exercise...
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