Search found 3025 matches

by motomech
Apr 18, 2018 8:21 pm
Forum: E-Bike General Discussion
Topic: Best Full Suspension ebike Frames?
Replies: 55
Views: 11915

Re: Best Full Suspension ebike Frames?

Anyone tried to convert one of these: https://pixl.varagesale.com/http://s3.amazonaws.com/hopshop-image-store-production/100715525/236a2f9bd647c88744d7dbc3cf9cb58b.jpg?_ver=large_uploader_thumbnail&w=640&h=640&fit=crop&s=ad564f4e0f28163427b0daae2bf06a7b Probably not the best shock design, and not t...
by motomech
Apr 17, 2018 9:19 pm
Forum: E-Bike General Discussion
Topic: Best Full Suspension ebike Frames?
Replies: 55
Views: 11915

Re: Best Full Suspension ebike Frames?

So they moved the suspension down from where it would normally go just to mount a rigid rack. https://testimonialcollecter.com/btp-photos/uploads/2014/10/Riese-And-Muller-Delite-Traveller.jpg I would say there are many better choices out there for you to choose from. Your local bicycle store would ...
by motomech
Apr 17, 2018 8:42 pm
Forum: E-Bike General Discussion
Topic: Best Full Suspension ebike Frames?
Replies: 55
Views: 11915

Re: Best Full Suspension ebike Frames?

I would say there are many better choices out there for you to choose from. Would love to see some of those. I've been looking into the fully-with-rack-and-fenders market for some time now, and did not really find any convincing stuff meeting my budget so far. The designs seem to match 2 categories...
by motomech
Apr 17, 2018 2:33 pm
Forum: E-Bike General Discussion
Topic: Best Full Suspension ebike Frames?
Replies: 55
Views: 11915

Re: Best Full Suspension ebike Frames?

More common bikes I would look for would be the Giant Anthem's and Trek Fuel's of the mid 2000's vintage. They all had nice open triangles, but if used w/ a frame bag, they need some sort of guard so the vertical mounted shock doesn't wear thru it.
by motomech
Apr 17, 2018 1:49 pm
Forum: E-Bike General Discussion
Topic: Best Full Suspension ebike Frames?
Replies: 55
Views: 11915

Re: Best Full Suspension ebike Frames?

Actually mine is a 2003(I corrected the post above)and there is some uncertainty whether or not it was recalled. But I think the recall is the reason I bought it new in 2007. I was in a huge bicycle dept store in Bethesda Md. when I saw it in a corner. It was all dusty and I asked the guy what was u...
by motomech
Apr 17, 2018 1:38 pm
Forum: Motor Technology
Topic: Front hub motor cable inlet protection?
Replies: 5
Views: 82

Re: Front hub motor cable inlet protection?

I haven't tested mine :D , but if it won't protect the cable, something isn't routed right.
by motomech
Apr 17, 2018 7:14 am
Forum: E-Bike Technical
Topic: freewheel spacing/shifter questions
Replies: 5
Views: 95

Re: freewheel spacing/shifter questions

The washer deffinately works. I use a flat washer straight from the hardware. You may have to spread the chain stays slightly to fit everything in, but it's no big deal, I can do it by hand or sometimes a little careful prying w/ a flat bladed screwdriver. I use a 7-speed free wheel w/ a 9-speed cha...
by motomech
Apr 16, 2018 6:02 am
Forum: E-Bike Technical
Topic: Which mountain bikes are suitable for electrification?
Replies: 5
Views: 137

Re: Which mountain bikes are suitable for electrification?

You ride in space? It's a very general question, so I will give you general answers. Don't buy the cheapest and for "urban" riding, you don't need the latest "trick" bike. The fact you have a 26" wheel, means you can look for a used mountain bike say, 4 to 8 years old. A decent mountain bike that is...
by motomech
Apr 14, 2018 5:55 pm
Forum: Battery Technology
Topic: LiFePO4 Recommendation?
Replies: 23
Views: 443

Re: LiFePO4 Recommendation?

Alright, I glanced bak thru your posts and you have a MAC 7T kit you got from Cellman. That would be a quality Infineon controller, so you don't want to toss it. At one point you were interested in a frame bag w/ the pack inside, so I would suggest you contact Em3ev about a 48 V or 52 Volt triangle ...
by motomech
Apr 13, 2018 9:06 pm
Forum: Battery Technology
Topic: LiFePO4 Recommendation?
Replies: 23
Views: 443

Re: LiFePO4 Recommendation?

It's hard to make a battery recommendation when you are so vague on what you have. 6T or 8T is generally considered to be a "motor speed" and we might assume that it's a MAC geared motor, there is no way to be sure. Can you show us some pic.s of the motor and the controller you have? Are there any s...
by motomech
Apr 11, 2018 11:33 pm
Forum: Battery Technology
Topic: The poor mans cycle satiator
Replies: 14
Views: 624

Re: The poor mans cycle satiator

I'm not commenting on your DIY charger, but I would point out that are several versions of Mean Well power supplies and they are different enough that they shouldn't be lumped together. I use the Mean Well HLG-320 series designed for all-weather use powering LED and neon signage. 1. I can't charge a...
by motomech
Apr 11, 2018 10:38 am
Forum: E-Bike Technical
Topic: Troubleshoot Mac Motor
Replies: 26
Views: 449

Re: Troubleshoot Mac Motor

Well, not that much experience, a pair of Ezee V1's. But those motors had a common prob., the wires were too short and when soldered in place, they were taunt, and one or more of the wires came off w/ the epoxy. Easy to see the prob. Yours look like they are still attached. When you the green thingy...
by motomech
Apr 10, 2018 2:59 pm
Forum: E-Bike Technical
Topic: Troubleshoot Mac Motor
Replies: 26
Views: 449

Re: Troubleshoot Mac Motor

trace the "dead" wire to the PBC and peel back the epoxy in that area. It's likely the wire will come off w/ the epoxy.
by motomech
Apr 09, 2018 10:42 pm
Forum: Battery Technology
Topic: LiFePO4 Recommendation?
Replies: 23
Views: 443

Re: LiFePO4 Recommendation?

The old standby is Ping. There have been reports here of his batteries having an amazingly long service life; http://stores.ebay.com/PingBattery Having said that, I believe the tend here is moving towards Li-Ion batteries, especially those using Panasonic cells. It's mostly a matter of weight, the L...
by motomech
Apr 07, 2018 7:21 am
Forum: E-Bike Technical
Topic: Lightest DD motor?
Replies: 13
Views: 410

Re: Lightest DD motor?

Perhaps the Aotema is the lightest DD motor;
https://store.hightekbikes.com/index.ph ... x&cPath=28
by motomech
Apr 05, 2018 4:01 pm
Forum: E-Bike Technical
Topic: Modify S06S controller to work on 13S 48V Li-Ion
Replies: 4
Views: 203

Re: Modify S06S controller to work on 13S 48V Li-Ion

There might be something in this really long thread; https://endless-sphere.com/forums/viewtopic.php?f=30&t=87870 Personally, I would just go w/ the KT sine wave from PSW Power; http://www.pswpower.com/peng/iview.asp?KeyID=dtpic-2016-3F-33C0.50CGS Not only does it auto read 48 Volts, it is rated 20 ...
by motomech
Apr 04, 2018 8:28 pm
Forum: E-Bike Technical
Topic: Troubleshoot Mac Motor
Replies: 26
Views: 449

Re: Troubleshoot Mac Motor

It's probably not bad, these large geared motors have a bad habit of the Hall wires pulling off the printed circuit board. It may just need resoldering. If you need a Hall, Grin sells them. Take the motor apart and see what you have.
by motomech
Apr 04, 2018 7:09 pm
Forum: Battery Technology
Topic: Super lighweight 54.6V charger ?
Replies: 7
Views: 269

Re: Super lighweight 54.6V charger ?

AW is right, the lighter the charger, the more "junkier: it is. The Mean Well HLG series are heavier because they are potted, but on the other hand, they won't shake themselves to pieces w/in 100 miles. If you want to carry a charger, you need to "bite the weight bullet" and carry a quality unit For...
by motomech
Apr 04, 2018 7:00 pm
Forum: E-Bike Technical
Topic: Building a quality 11t freewheel
Replies: 90
Views: 15767

Re: Building a quality 11t freewheel

The one time I looked at the DNP, I didn't see any way to take it apart other than cutting it. Why not use a 9-speed or a 10-speed DNP and use less gears? I have found that due to the shape of the teeth of the DNP gears, the derailleur needs to be adjusted up high and under the free wheel to get dec...
by motomech
Apr 04, 2018 6:47 pm
Forum: E-Bike Technical
Topic: Can I change the cutoff voltage of a KT48ZWSRLT-LCD for 16S Lipo usage?
Replies: 3
Views: 108

Re: Changing cutoff voltage with KT48ZWSRLT-LCD for Lipo usage

I have been running 12S LiPoly for years, but I use geared motors that allow me to pick a motor speed that will reach a decent top speed on a low Volt system. DD motor are known to like a lot of Volts and I think you realize you won't be happy w/ 12S. Your options, the way I see it are; 1)Switch the...
by motomech
Apr 04, 2018 6:19 pm
Forum: E-Bike General Discussion
Topic: MAC 10T @ 36V vs 12T @ 48V??
Replies: 24
Views: 487

Re: MAC 10T @ 36V vs 12T @ 48V??

In general, it's more efficient to run higher volts/lower speed motor to achieve a desired top speed, than to run lower volts/faster speed motor.
Go to the sim. @ Ebike CA and try the different parameters you are interested in.
by motomech
Apr 04, 2018 6:12 pm
Forum: E-Bike Technical
Topic: What controller to change for more kick
Replies: 5
Views: 232

Re: What controller to change for more kick

Every sine wave I've tried was "soft start", part and parcel w/ their smoothness and easy throttle control. If your controller has dual shunts, and I suspect it does, you could "mod the shunts" by squeezing them together and coating 2/3 rd.s w/ a lite coat of solder. This will increase the max. Amps...
by motomech
Apr 02, 2018 2:25 pm
Forum: E-Bike General Discussion
Topic: Which hole size for tap?
Replies: 7
Views: 247

Re: Which hole size for tap?

Hey Guys, I want to send a 3d model to CNC and I need to have an M5 and M8 threads but in the model I don't design the threads but only the holes so I wanted to know what is the diameter I need to make the holes for M8 and M5. Buy the thread tap kits, which will probably be 5 m/m X .80 m/m and 8 m/...
by motomech
Apr 02, 2018 12:22 am
Forum: E-Bike Technical
Topic: Troubleshoot Mac Motor
Replies: 26
Views: 449

Re: Troubleshoot Mac Motor

Yes, the easy Hall sensor test would be in order. It sounds like one of the Hall wires has septarated from the PCB.