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    Adding cut-off brakes to a Yuba Spicy Curry (or Izip)

    Just received a Yuba Spicy Curry that my wife will be riding. Great bike but the one thing I don't like is the absence of cutoff brakes especially when down-shifting approaching an intersection, soft pedaling tends to engage the motor. Has anyone have experience with adding cutoff brakes to the...
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    Newbie making light-weight longtail ebike?

    I've ridden a Haul-a-day with a Bafang motor and have a Big Dummy with a rear geared hub motor (also a Yuba Spicy Curry on the way). The one thing I did not like about the Bafang is that it the assist is on/off. I have a bottom bracket torque sensor on my big dummy and it is a much more natural...
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    Does/does not hub dynamo make sense on an E-bike?

    I also have hub dynamos on all my regular bikes. As you note, for most cases it probably doesn't make sense to have one on an e-bike given you have a big battery already there and lights draw a minimal amount. I ended up with one on my cargo bike because (1) I retrofitted a hub motor a year...
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    Power and speed limit Currie mid drive on Yuba Spicy Curry

    Voltron, that's kind of what I'm worried about and/or liability issues if we get involved in a collision of some kind. I've been trying to dig up info on the internet about reprogramming Currie drives but no luck so far
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    Power and speed limit Currie mid drive on Yuba Spicy Curry

    Hi We're looking at getting a Yuba Spicy Curry for my wife here in the US. The slight wrinkle is we are also planning on being in the UK for the next two years and we're planning on shipping the bike across. I was wondering if anyone had any experience reprogramming the Currie Mid-Drive motor...
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    9C motor wheelbuilding help in Seattle

    Check out Henry Kellogg at Liontails cycles. I've had him build me an electric hub motor wheel. Good guy and fair prices and lots of experience with electric hub motor builds.
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    Small capacity (4-5AH) high quality batteries

    Thanks for the Kobalt battery idea. While on ebay I also found a bunch of these for sale by various sellers (using Samsung 22p cells): http://www.ebay.com/itm/Replacement-36V-4-4Ah-158W-Battery-For-2-wheels-Self-Balancing-Unicycle-Scooter-/361383652280 Anyone have any experience with the...
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    Small capacity (4-5AH) high quality batteries

    Also, is anyone using two battery packs (say 36V 4.5AH) and rotating through them each ride with the ability to connect them in parallel when needed for longer range? I'm considering this also to allow one to travel with them - a 36V 4.5AH battery is right around the 160WH limit for airline travel.
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    Small capacity (4-5AH) high quality batteries

    I just came across this post and funnily enough I'm in the midst of a similar build using a Soma Wolverine converted to 26" x 55mm tires with an outrider geared front hub, torque sensor bottom bracket and Alfine 11 belt drive. This is for my 70+ year old dad in Australia but I'm building the...
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    Advice requested for e-bike kit for Yuba Mundo

    I come from a similar perspective. I have a surly big dummy, built up my bike, like to pedal and was after an assist for heavy loads and hills and perfectly satisfied with 20mph max. here are my two cents: - i am a big fan of having a torque sensor (this is what is on the bosch system you test...
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    Help identifying torque sensor bottom bracket

    Can anyone help me identify what this torque sensor (I think) bottom bracket is? http://en.hollandbikeshop.com/bicycle-parts-electric-bicycle/cortina-ecomo-parts/cortina-ecomo-bottom-bracket/cortina-bottom-bracket-120mm-for-ecomo-from-2015/ Zooming in on the picture I couldn't find anything...
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    LightningRods new Big Dummy cargo bike drive

    This is awesome. I was considering this for my own BD but couldn't wait and ended up going with an eZee hub drive. Seeing these pictures though I might have to move my hub drive over to another bike and get this! I'm very interested to hear how you are going to do the torque sensing. Looking at...
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    Bafang, Lighning Rods, or Stokemonkey for Big Dummy?

    The single chainwheel was a consideration but the thing I most like about the torque sensor living in Seattle is that I don't have to worry about shifting the assist level depending on the grade that I'm riding on and effort I'm exerting. Little/no assist on the flat/downhill if I'm soft...
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    Bafang, Lighning Rods, or Stokemonkey for Big Dummy?

    FWIW, I considered all three of these for a Big Dummy. I ended up not going with the SM as I was interested in the torque sensing right side version (Cycle Stoker) which is only available at the moment for edgerunners and yuba mundos. The LR kit didn't work out timing wise. I didn't like the...
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    New Build Advice

    I'm in Seattle also and just bought an eZee rear hub motor and em3ev battery frame pack from Henry at Lion Tails cycles. Good guy, advice and reasonable prices. I also have a steep hill and heavy cargo bike and the e assist has made it a non-issue.
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    BEAMts Torque Sensor...Figured it out!

    Nice work! I like the combo of the Patterson and idler based torque sensor. Do you have a cadence sensor as well as the BeamTS? How easy would it be to get this to work with a CA V3? I'm interested in hearing more about your experience - I just installed a Thun but was wondering if this would be...
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    First ebike: tuning a Thun torque sensor + Cycle Analyst V3

    As of a couple of days ago I have my first ebike - a Surly Big Dummy with a rear eZee hub motor, Cycle Analyst and a Thun BB. This is a kid hauler for Seattle. Overall, it has been awesome. A shout out to Liontails on the install and Grin for advice along the way. I have this currently set up...
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    Stealthy front hub-drive for ancient Raleigh?

    Just to flag that the older Raleigh 3 speeds have non-standard threading so a mid drive might not work. Sheldon Brown has a great website on this. I don't think the dropout width is a big issue - I've been able to squeeze 100mm hubs into the 90mm 3 speed dropouts before. FWIW I would not put a...
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    Running horn from cycle analyst aux power tap

    Anyone know of a horn that might be compatible with the CA aux power? I'm interested in a horn for cars (I have a bell for pedestrians and other bicyclists) and was hoping that I could use this rather than having a separate system, Thanks!
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    New Surly Big Dummy build - battery choices

    Thanks - i ended up going with the frame pack and using the savings to go with a Thun BB instead. As a PSA if anyone is looking for reasonably priced custom bags this guy has a pretty good deal on at the moment: https://www.etsy.com/shop/RoguePandaDesigns
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    BEAMts torque sensor?

    I'm interested in this also. Anyone know where you can buy one? I found a link to the Prodecotech version (http://www.eazy.mobi/shop/beamts-pedal-assist-torque-sensor) but that mount won't work for my purposes as it looks like it's only suited to a single crank ring I'm particular interested...
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    New Surly Big Dummy build - battery choices

    Thanks for your thoughts! I'll definitely put a padlock through the two zippers but also want a way to secure the battery itself to avoid having to bring it with me each time. My latest idea is to create a harness for the triangle battery of some kind using metal straps...
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    New Surly Big Dummy build - battery choices

    First time poster, thanks for all the great information here I've learnt a lot on this forum! I'm about to put an e-assist and thought I would seek some advice on battery choices. The build is a 24" wheel Surly Big Dummy. I'm looking at an eZee rear hub, 20A Grinfineon controller, 12 pole PAS...
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