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  1. Hyena

    [AUS] Canberra ebike ride - 24th or 26th of March

    So it's that time of year that I head interstate for a work conference and try to catch up with fellow ES members while doing so. Who's up for a ride around Canberra ? The closer to the CBD the better as it'll give me more time (I'm in a fairly tight schedule) but I'll let you locals decide...
  2. Hyena

    Hyena's YamEha Conversion

    OK, I figured I'd better create a build thread for this , if for no other reason that people might periodically bump it and keep me enthused to keep working on it :P The donor bike is a yamaha R15, a sports bike shaped object that has a 150cc engine. Weight is 135kg which seems like a good...
  3. Hyena

    Another lipo fire - house damaged

    OK, so here's yet another example of lipo badness. I was super lucky in this case, as below. To take it from the top, someone sold a guy a conversion kit and large 18S 30ah lipo pack. The seller apparently bought a kit or parts from me many years ago and has tried to copy the battery...
  4. Hyena

    Flux mid-drive

    Alrighty, so the flux's bread and butter is going to be hub motors but I'd love to build a sweet mid drive :) So, non-hub aficionados, sway me to the dark side :mrgreen: My requirements are: A: Neat. I want as much of it contained inside the frame if possible. Maybe the motor half or 3/4...
  5. Hyena

    Stealth FUTR owners builds and pics

    Hey guys, With the release of the new FUTR frames I thought it was about time we get a futr builds/ owners thread happening. Here's the first prototype: Now go forth and populate with pictures of your creations :) These bikes that were formerly known as flux or flx are now called FUTR...
  6. Hyena

    Volvo lifepaint

    I just came across this stuff which could be quite good for those who ride at night and want to increase their visibility. I'm guessing it's largely a marketing / PR move from Volvo given the statement: Life Paint is part of Volvo’s bold vision that, “By 2020 no person will be killed, or...
  7. Hyena

    Gold Coast Qld meet - Friday 27th March

    Hey guys, I'll be up on the gold coast this year for my annual work conference and in keeping with tradition I thought I'd try and organise a meet up and group ride with with the ES locals. I know there's a few of you on the gold coast and surrounding areas so if you're free and wanna say g'day...
  8. Hyena

    Raptor 140 build and tutorial thread

    Hey guys, I'm creating this raptor 140 thread as a bit of a more of an informative / instructional / tutorial type thread. I've posted a fair bit to the other general raptor threads and alot of what I'm doing and my various builds in my own build thread but that's getting pretty lengthy these...
  9. Hyena

    Can anyone make sense of this wiring diagram ?

    Hey guys, I'm in the process of wiring up a (cheap chinese!) motorcycle alarm for my new raptor build and am stumped with this wiring diagram. It has 3 states: locked, unlocked and remote start. Even if I couldn't utilize the remote start I was hoping the on and off state could at least be...
  10. Hyena

    Hunter Valley EV Festival - AUG 16-17 (AU - NSW)

    Hey guys, Are any ESers going along to the Hunter Valley EV festival in a few weeks ? I know Grinhill will be there and racing. I've just entered my Raptor in the 1500 motorcycle division. I dont expect it to be too competitive against proper motorcycles but it'll still be fun to throw it...
  11. Hyena

    Direct drive non-hub vs hub efficiency

    Hey guys, I've been a long time big powered hub motor user for simplicity but I'm now looking at making the step now into a chain/mid drive. It's often stated that a mid drive is more efficient than a hub motor but in a higher powered setting where you're not driving through the gears and go...
  12. Hyena

    AUS - Ballarat meet - 24th November

    Hey, why is Hyena organising a meet in Victoria ? Well Mexicans, I'm coming to town, that's why :P I've got a job on in Ballarat on Saturday the 23rd and am not flying out until mid afternoon Sunday so that leaves until lunch time for a spot of riding. I propose a fairly early start, say...
  13. Hyena

    New style bullet connectors

    Hey guys, I just came across these new style bullet connectors and housings from hobbyking that may be of interest to some. They're called RCPROPLUS Supra X. I guess "OMGWTF-BestEvar 11" was taken :lol: For most modestly powerful setups these 3x 4mm bullets would be good for phase wires and...
  14. Hyena

    A shout out to the San Francisco ES chapter

    Hey San Franciscites :P I'm heading there in a few weeks (6th May) and because I'm an ebike diehard I can't go even 5 minutes without e-wheels. My trip is a brief one unfortunately and I'll only be in the CBD for 2 days before hiring a car and driving out to Yosemite for 1 day and then back to...
  15. Hyena

    Melbourne trail ride - SUN 11th Nov

    Not to be confused with the group ride the day before, so I'm starting another thread so as to not hijack that one I'm flying into town Sunday morning and because I can't make the previous days meet and the world revolves around me, let do another ride :P Kepler, it's out your way so I'll let...
  16. Hyena

    ES's youngest ebiker ? (electric quad)

    So, is a 20 month old about the youngest ES member we've got with an over volted, lipo powered ride ? :lol: :mrgreen: The saggy 6V SLAs in the kids electric quad bikes have pretty poor performance and barely moved at all on the grass. So I ditched them for 3S 5ah turnigy lipo packs made...
  17. Hyena

    Anyone done a carbon fibre ebike ?

    People often ask me about frames to convert and when they suggest carbon fibre I usually say no no no but in a case of "do as I say and not as I do", I'm keen to make a super light weight commuter and I don't see why this shouldn't be possible with proper torque arms. I'm not looking to put my...
  18. Hyena

    Hot motor = crook windings ?

    Hey guys, I've got a bit of a weird problem with a kit I put together for a guy recently. It's a crystalyte HT35, running on 18S lipo. I've done a fair bit of testing with this configuration and they normally run quite cool and efficiently with the lower speed wind. So the guy assembled the...
  19. Hyena

    A reminder of lipo do's and don'ts - Fire aftermath pics

    I'm almost reluctant to post these photos as I think lipo is the greatest battery chemistry around and that anyone too scared to use it are a bunch of sissies and deserve bad backs or poor handling from lugging around heavier chemistries :P However this does serve as a reminder of the do's and...
  20. Hyena

    New lipo fail - from good to dead in 8 hrs

    OK there's more to it than a spontaneous discharge like the title might suggest, but not by much. So I built this 12S pack for a guy, and have been cycling it a few times to make sure it's all OK. And all was ok, getting 9.7ah from the 10ah rated capacity before the first cell hit 3.2v I was...
  21. Hyena

    Sydney group ride - - Saturday 18th August

    Hey guys, I've been meaning to organise a group ride for ages but keep having things get in the way. We can't have these other clowns all over the country organising all these meets and have us dip out now can we ? :P So, how about a group ride on Sunday the 15th of July ? I'm fairly easy...
  22. Hyena

    Protect your lipo packs

    OR ELSE :P :mrgreen:
  23. Hyena

    Mosfet / heatsink resonance

    OK so this isn't an ebike related question at all, but it is technical :P and I figured those of you with formal electronics training would probably be able to explain this to me. While playing with a BMS tonight I touched the top of the heatsink and it felt "funny". I don't know how to...
  24. Hyena

    Stealthy lipo filled custom frame

    Hey guys, As I continue my pursuit for the perfect ebike I've decided to go down the custom frame route. Stealth is really important to me and I want to keep it looking as much like like a standard heavy duty downhill bike as possible. I love my stealth fighter but it does stick out a bit...
  25. Hyena

    Strange CA problem

    Hey guys, I've got a bit of a strange CA problem. I build a kit for a guy a while ago and all was well until he cooked the HT3525 going up a hill at 5km/hr with a heavy load on board. The motor was replaced with another but ever since the CA has been doing strange things - the voltage...
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