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  1. C

    got some new Tektro hydraulic dual caliper brakes to test

    Dual calipers? Where / how do you mount the second one?
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    GNG, 1000W 48V BB-drive, $400

    Both use the same motor & jackshaft. It comes down to your own preference and type of usage, and your preferred voltage. Out of the box, without modifying anything; Chain is noisy but strong, belt is fragile but quiet. Belt seems to offer better primary reduction gearing and more torque...
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    What to buy in UK

    Also in the uk, east London. I built a mid drive ebike using a GNG kit. 1.2kW and 30-odd mph when let off the lead, but I use a v.3 Cycle Analyst and a three position switch to turn the power down to economical and legal levels when on the Queens highway. Power from ping, and stronger motor...
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    GNG, 1000W 48V BB-drive, $400

    I'll scrap the GNG bottom bracket and buy one from you when it fails, but until then, I may as well make use of it. I mostly ride seated, I don't intend to pedal this bike a huge amount, and I certainly don't intend to be doing any aerobatics on it, so the GNG BB might last a while yet. I picked...
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    GNG, 1000W 48V BB-drive, $400

    The halo clickster, for all its heavily engineered 6 pawl chunkiness, doesn't fit. It's 2mm too thick, and 1mm to big to fit I to the machined adaptor of the GNG chain set. Shame because its a really sturdy looking freewheel, half the price of the White industries stuff. I have another...
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    GNG, 1000W 48V BB-drive, $400

    Thanks, its colour code RAL5002, chosen utterly at random from a bewildering array of colours I was offered at the powdercoater. Its turned out quite nicely. I have a couple of reliability issues to sort, but it made mincemeat out of my 30 mile trip to work and back the other day. Only upgrades...
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    GNG, 1000W 48V BB-drive, $400

    Likewise, I've just finished my commuter build. I went straight for mikes adjustable plates, and had them powder coated to match the rest of the bike.
  8. C

    What technologies need advancement for eBikes?

    High strength bottom brackets, cranks and freewheel devices specifically designed for the needs of mid drive solutions. Long bottom brackets with free wheels designed to run at high loads whilst in overrun mode. Current BMX / Trials free wheels work well, but are not designed for this...
  9. C

    GNG, 1000W 48V BB-drive, $400

    Thanks for the tips. I've been given a Halo Clickster 16 tooth freewheel. Looks like its pretty tough, so I'll give it a try. Anyone tried one?
  10. C

    GNG, 1000W 48V BB-drive, $400

    Thanks, but it's already out. Reasonably simple job to do, but I'm struggling with the question of getting a replacement that will last a while, and with this metric thread pitch question...
  11. C

    New GNG Mid Drive Brushless 60V650W

    Mine fell off too. Replaced with a standard M10 nut and a spring washer.
  12. C

    GNG, 1000W 48V BB-drive, $400

    I'm pretty sure I've read somewhere on here that the GNG uses a different thread (metric?) to normal free wheels. Can't find it now though...
  13. C

    GNG, 1000W 48V BB-drive, $400

    Guys, I apologise if this has been posted and asked before, but I'm surfing on an iPhone, which makes searching a bit if a laborious task, not to mention a lengthy one given the signal strength out her in the wilderness of Essex, where I'm currently located. After a mere 30 miles, the...
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    Cycle Analyst V3 preview and first beta release

    Mistakes or not, its a lot easier to follow. Just set up my throttle in about 2 minutes flat. This guide made it really very easy... Thanks.
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    BIG BLOCK alternative Motor

    Could it be that way because it's been designed to be a) cheap, and b) super-reliable? It might be heavy, and inefficient, but it looks like it could outlast just about anything. London's famous black cabs are built in a similar way, using ridiculously heavy and inefficient components from...
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    GNG, 1000W 48V BB-drive, $400

    To be fair, the powdercoat process does make fitting them a bit trickier than it is without the powder, although that's perhaps not helped by my choice of finish. The process involves a coat of zinc primer, colour coat, and then two coats of clear coat. One with the sparkles, one without. This...
  17. C

    GNG, 1000W 48V BB-drive, $400

    I've got a pile of pictures on my camera of the bike in progress, but its a long process that started in September when I bought a ratty old Felt hardtail frame for beer money, but had no idea what to do with it. I'll post a build thread in a few weeks when I've finished it. I've sent quite a...
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    GNG, 1000W 48V BB-drive, $400

    Just to add a few words on the LightningRods bracketry. I bought a complete set of brackets from Mike about a month ago, for fitment to my first ebike project. He boxed them up and shipped them to the UK for me. I did have to pay the dreaded UK import duties and VAT, but it was only £15, so...
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    Cable Routing Through Stem - An Off-The-Shelf Solution

  20. C

    ebika.ca VS bmsbattery.com ebrakes?

    Do you have any customs or import duties if you import from Canada to USA?
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    Cycle Analyst V3 preview and first beta release

    The V3 isn't exactly big. Any smaller and you wouldn't be able to read it. As for weight, it's not exactly heavy either. It's probably the lightest part of my build!
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    Twitchiness at 40+ mph

    A note of caution, don't just arbitrarily tighten spokes. There is an optimum point for the tightening of spokes. A point at where they are sitting in elastic tension so that they can comfortably deal with the variations in tension that occur as the wheel revolves, has torque or lateral loads...
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    New GNG Mid Drive Brushless 60V650W

    Those of you who have fitted the gng 60volt chain drive with lightning rods plates, do you have any tips or recommendations regarding proper chain tension on the primary and secondary side?
  24. C

    Local laws limiting power and speed

    UK. Here we have a maelstrom of confusion due to there being two sets of applicable laws. First is the Electrically Assisted Pedal Cycle Regulations 1983. These rules are still in force, and say you can have 200W up to 15mph. Throttle control is allowed. Maximum weight of 40kg. I shudder to...
  25. C

    Twitchiness at 40+ mph

    With only 65 miles the bike would have needed to be beaten to death. The headset bearings will be fine. The forks however, will be very tight. Give them a few miles to break in and they will settle down to more normal behaviour.
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