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    powered bicycle trailer idea

    I built a trailer for my ebike to transport my inflatable catamaran on a 4 km ride to Lake Balaton. The trailer loaded weighs around 50 kg and so far has worked well. My only real problem is weight balancing of the boat in the trailer and I have found I need to keep the weight balance forward or...
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    First build 36V/500W 9C motor

    Thanks. That is my plan to upgrade everything to 48V, a new controller, and a cycle analyst. I am still contemplating the battery. I may try just tearing apart the pedelec packs and making a 50V battery from those or just bite the bullet and either make one from Hobby King LiPo's or something...
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    Things to ponder before building your own electric bike:

    I don't disagree with you. There are several things I keep on me when I ride. The first is a small medical it for emergency use only. You can put this together for emergency use and have just the bare necessities as you shouldn't be that far from civilization. Typically, I ride by myself on...
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    First build 36V/500W 9C motor

    Okay I can now report on how this has worked out after 6 months of nearly daily riding. I have built the bicycle trailer for use in toting my Smartkat inflatable catamaran to Lake Balaton. The boat normally packs down into 2 separate carry bags each weighing about 21 Kg. The trailer was a...
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    Hidden costs of ebike

    The battery costs and tires etc. are all expected costs and should be part of the normal calculations for costs. I found used battery packs from pedelec bicycles that just need to be rebalanced and should last a year or more. At less than $100 for a 36V/10.5 Ah pack this seems reasonable. I...
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    Newbue wants to build an ebike

    I added screw adjustable pipe clamps to make it secure after I took this photo. The zip ties were to just test out the system the first day. I need to take more photos and plan to once I get the trailer finished. This works for me and has held up on long and very hard rides. The motor controller...
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    Newbue wants to build an ebike

    I put mine inside the triangle on the tube using pipe those big hose clamps. I actually had to use 2 for each part. I first used nylon zip ties but added the clams to make it secure. I put a strip of rubber insulation between the tube and the battery case. See my build thread (beats me how to...
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    Ebike Hints & Tips

    I can vouch for that myself. Back in my younger days I was a serious marathoner but did all of my training on forest trails. I found not looking at the trail straight on was far safer than trying to focus on the roots or rocks. The same is true for mountain biking. Trying to focus on an...
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    Newbue wants to build an ebike

    John, Sorry I didn't catch up on posts recently. There are a couple of ways to control the assist. The method my kit used and is the most common is called pedelec in which there is a magnetic sensor that mounts to the bottom bracket and measures pedal rotation. It is merely reading on or off...
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    Ebike Hints & Tips

    I can vouch for the dangers. I have had 3 near misses in the past week all from idiot driver's not estimating my speed correctly and turning left in front of me. I have had at least 2 more time when the see me coming they try and pull onto the road in front of me and are shacked when I almost...
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    Your Job/Occupation/Career?

    A very interesting story about Borat and the woman with the Degree from Russia. I am married to a Russian (Geophysicist) and after 7 years I more or less understand the issues. I also worked 10 years in the FSU Republics and have led several Russia scientists which all give me a somewhat better...
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    Newbue wants to build an ebike

    I made a mistake on the agreement. They are signing an agreement to meet and make an agreement. So, it still has a long ways to go. This impacts on the US automobile manufacturers as it means an immediate decrease in prices for European manufactured autos which is pretty much a one way street...
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    Newbue wants to build an ebike

    http://www.customs.go.jp/english/tariff/2012_1/index.htm lists the official import duties. It is a serious consideration when buying stuff outside your country and something nearly absent in the US now for some very stupid reasons. It used to be that import duties were the main source of revenue...
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    Newbue wants to build an ebike

    Don't forget John is living in Japan so US prices, availability, and options don't apply. He is better off buying either in Japan or from China but I don't know the customs duties issues from China to Japan. Given the current political crisis over the islands between China and Japan this may...
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    Newbue wants to build an ebike

    Dogman, Your advice is sound but please correct me if I am wrong, but your setup is if you don't pedal at all (or not very much). Pedaling can increase this range a lot, especially if there is some regen. I do agree 48V will give a lot more power and I am a bit underpowered which I am okay with...
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    Newbue wants to build an ebike

    John, I can't take credit for what the kit has included. The kit I bought is this one: http://www.ev-power.eu/EVBike-Kits-1-1/E-bike-conversion-kit-EVBike-36V-500W-Front-28.html It is a 9C kit so I am pretty sure you can find it in China on TaoBao or from one of the other sites like...
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    Newbue wants to build an ebike

    John, Good luck to you and welcome to ES. I recently finished converting my mountain bike. I am using a 36v 9C DD hub motor kit with a Pedelec type LiMn aluminum encased battery pack with integrated BMS rated at 36v/10.5 Ah. I ride primarily off road and wanted assist for the hills. The...
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    First build 36V/500W 9C motor

    I took it out yesterday on a 32 km ride and rode on the roads/bike trails at 30 kph with me pedaling in my max gear and providing roughly 75% of the work load. I have the cruise control set for 30 kph. This kit includes a controller that has 5 incremental settings for pedal assist. The lowest...
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    First build 36V/500W 9C motor

    That's good advice about the wire and easy to fix. I remounted the battery using large hose clamps and it works fine. I was also thinking to use 4mm parachute cord to wrap it all around but this ended up working perfectly with no looseness after a hard ride. I think the rail won't work as I...
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    First build 36V/500W 9C motor

    Thanks, I echo your concerns. Yes, in a production bike the battery mount is included. These are used batteries, although taking the battery apart and checking the cells they are balanced and have full capacity so either they were never used or barely used. It looks like the BMS on these works...
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    First build 36V/500W 9C motor

    Photos of the build including the LCD display, motor, and battery mount.
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    First build 36V/500W 9C motor

    After being a pest on this forum I finally went ahead and bit the bullet. I purchased this kit from http://www.ev-power.eu/EVBike-Kits-1-1/E-bike-conversion-kit-EVBike-36V-500W-Rear-26.html who are located in Prague. This kit was well thought out and relatively easy to install (I assume as I...
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    Your Job/Occupation/Career?

    I think you have hit on it. I have noticed in my life that stuff I play around with early in it's life cycle often becomes serious business. Recognizing that seems to be my problem. I was soldering together computers back in the early 70's and built an early S-100 bus computer than bought a...
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    A Conversation With a Scammer

    I am almost (but not quite) ashamed what I did way back in the day to my Sergeant Major. I was the NCOIC of the graveyard shit at a major Army Medical Center back when I was an SFC. We got this turd of a SGM who for some reason declared war on the night shift and would do silly stuff like call...
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    A Conversation With a Scammer

    There used to be a web site for revenge stuff. I can't find the one I used to use but here is a similar site: http://www.spymall.com/catalog/revenge.htm I bought a lot of this stuff and it was all worth every penny. I had one device I put on the phone of my boss (we had those big military phone...
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