Search found 496 matches

by LeftieBiker
May 20 2019 1:20pm
Forum: Motor Technology
Topic: Throttle gives more power than PAS, why?
Replies: 3
Views: 68

Re: Throttle gives more power than PAS, why?

It's fairly common for controllers to be programmed to give full power on throttle and lower power on PAS. My Magnum Metro and Greenbike fat tire folder both do that. You should be able to change that parameter in the controller, but I don't have any experience with that. Personally, I prefer it thi...
by LeftieBiker
May 19 2019 11:56pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Greetings, care to help design a build?
Replies: 11
Views: 187

Re: Greetings, care to help design a build?

The problem is essentially that in order to drive that much weight (even after removal of the ICE components) that fast and far, you'd need more batteries than can fit on the bike - especially the lower density LifePo4 cells. One way around it that has been suggested for other similar builds is to a...
by LeftieBiker
May 19 2019 2:21pm
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

No need for 8 or 9 or 10 speeds on an e-bike. We would all agree that even a 5 speed is more then enough, unless one like pedal assist to one extent or another: The fitness rider, the commuter, the Fuzzy. I bought an 8 speed, needed a spacer on the freewheel side which is no big deal. Otherwise the...
by LeftieBiker
May 19 2019 4:41am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

This week I put the bike on the workstand, awkwardly tilted the whole stand a bit sideways (they really need that axis added), and squirted quite a bit of synthetic motor oil onto the outer and inner edges of the cassette at the axle. The outer edge seemed to drink it in, but I'm not sure about the ...
by LeftieBiker
May 14 2019 5:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: Strange Middrive Efficiency
Replies: 8
Views: 372

Re: Strange Middrive Efficiency

Dogs will bark at pedestrians walking by silently, so don't assume it was the motor whine.
by LeftieBiker
May 10 2019 7:31pm
Forum: General Discussion
Topic: Off topic but desperate-- Chevy Trailblazer
Replies: 9
Views: 211

Re: Off topic but desperate-- Chevy Trailblazer

4L60E transmission, uses a pair of solenoids controlled by the engine computer to select gears. 3rd gear is selected by both solenoids being off, 2nd gear is "A" solenoid off and "B" on. I've heard of these solenoids getting sticky after some years, it's possible the "B" solenoid has done this. Are...
by LeftieBiker
May 09 2019 2:15pm
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

I was thinking of trying to spray some grease through a thin plastic tube into the free-whatever, from an aerosol grease can. Is white lithium grease safe enough to use with existing grease? As I understand it, it's just regular grease with zinc added for color... Grease isn't the right lube for fr...
by LeftieBiker
May 09 2019 2:13pm
Forum: General Discussion
Topic: Off topic but desperate-- Chevy Trailblazer
Replies: 9
Views: 211

Re: Off topic but desperate-- Chevy Trailblazer

Check the transmission fluid level, and also the appearance of the fluid. (You have to follow the procedure in the owner's manual to get an accurate level reading.) If it's very low that is likely the issue. If it is almost black in appearance and/or smells burned, that could also be it. Check all o...
by LeftieBiker
May 09 2019 12:59am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

I was thinking of trying to spray some grease through a thin plastic tube into the free-whatever, from an aerosol grease can. Is white lithium grease safe enough to use with existing grease? As I understand it, it's just regular grease with zinc added for color...
by LeftieBiker
May 01 2019 12:52am
Forum: Battery Technology
Topic: Reviving an ELF battery
Replies: 10
Views: 174

Re: Reviving an ELF battery

This is what you have? https://electricbikereview.com/organic-transit/elf/ With a 48 volt, 11.4 AH capacity and a Lithium Manganese Cobalt chemistry pack, using 18650 cells? Seems to be a bit different than the EBR ELF page. Here's a picture of the battery info I took: I think you have the larger b...
by LeftieBiker
Apr 30 2019 1:39am
Forum: Battery Technology
Topic: Reviving an ELF battery
Replies: 10
Views: 174

Re: Reviving an ELF battery

This is what you have? https://electricbikereview.com/organic-transit/elf/ With a 48 volt, 11.4 AH capacity and a Lithium Manganese Cobalt chemistry pack, using 18650 cells?
by LeftieBiker
Apr 26 2019 3:09pm
Forum: E-Bike General Discussion
Topic: E-Bike Registration
Replies: 28
Views: 764

Re: E-Bike Registration

If you want to get a VIN, your best bet is to get the frame, with lights (and wheels if possible), from a small dual-purpose street-legal motorcycle, and rebuild it as as EV. You'll have a VIN, and the DMV may not even notice when you try to renew its registration. It would still have to pass a safe...
by LeftieBiker
Apr 25 2019 12:01am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

You say you've looked at the derailleur and lubricated it, so this isn't likely the problem - at one time when I noticed a lot of clunking from the rear gear, I found that the derailleur tension pulley wheel was pretty near frozen solid. I guess that led to some unusual chain tension. That has most...
by LeftieBiker
Apr 24 2019 12:58am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

Greeeaaat. :( Thanks for the quick lesson - in why I'm probably screwed. My best bet may be to wait until it worsens, send Magnum a video of it, and hope I get a new rear wheel assembly, like what the Das Kit contains...
by LeftieBiker
Apr 23 2019 2:16pm
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

I knew what the cassette is - I just didn't know that the freewheel mechanism is a separate part from it. I'll ask the manufacturer. So is the freewheel pressed into the cassette, or (I assume from what you wrote) pressed or screwed into the hub motor cover? Magnum seems to be almost a drop ship bus...
by LeftieBiker
Apr 23 2019 1:26am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

Shimano made the first successful cassette freehubs, and they're still the best in the business. The farther off in the off brands you go, the more likely the freehub body is to be unreliable junk. The bike has a Shimano Acera 8 speed derailleur drive. Are you saying that the cassette isn't provide...
by LeftieBiker
Apr 23 2019 1:23am
Forum: E-Bike General Discussion
Topic: E-Bike Registration
Replies: 28
Views: 764

Re: E-Bike Registration

The previous post is correct. Remember to always pedal when in sight of anyone else, and to not act like an idiot, and you will likely be left alone. The documents you got are actually much more than most of us get, so be grateful. If you want to ride fast in public, get a motorcycle or scooter.
by LeftieBiker
Apr 22 2019 2:24pm
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

When you say "integral to the hub" do you mean that the whole hubmotor assembly would have to be replaced? You later seem to imply that it can be replaced, with special tools. I'm confused...
by LeftieBiker
Apr 19 2019 1:15pm
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

My bike only has about 1200 miles on it, is less than 10 months old, and I pedal all the time while riding. I really hope it isn't going to have to be taken apart. It's under warranty, but all Magnum is likely to do is send me another crappy OEM freewheel...
by LeftieBiker
Apr 19 2019 12:50am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Re: Magnum Metro: Freewheel Clanking!

What I'm experiencing is a fairly loud, metal-on-metal sound as the freewheel engages. Not a grinding sound, but the aforementioned CLANK, like tapping a solid piece of metal with a ball peen hammer. It doesn't do it until after I've ridden 5 miles or so, although I can reproduce it on the stand jus...
by LeftieBiker
Apr 17 2019 2:05pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Yamaha V Star 1100 Conversion
Replies: 33
Views: 878

Re: Yamaha V Star 1100 Conversion

and a small wind generator Let me explain why this is wrong. Just as a car alternator or a generator increases the load on the engine (because the energy has to come from somewhere ) a wind turbine on a moving vehicle slows it down by increasing air drag. Since converting energy from one form to an...
by LeftieBiker
Apr 17 2019 5:14am
Forum: E-Bike General Discussion
Topic: Magnum Metro: Freewheel Clanking!
Replies: 27
Views: 596

Magnum Metro: Freewheel Clanking!

I've had this bike about 9 months, now. It has a Shimano Acera 8 speed, with a Das Kit 500 watt geared rear hub. Since it was new I've noticed that the freewheel will sometimes CLANK more loudly when engaged than my other bikes, but it is worse this Spring. I put it up on the stand last night, to ma...
by LeftieBiker
Apr 17 2019 12:28am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Yamaha V Star 1100 Conversion
Replies: 33
Views: 878

Re: Yamaha V Star 1100 Conversion

It would be very interesting to build a large hybrid bike like that. You could probably fit a 1kw generator (please use 4-stroke only! Preferably California spec) on the bike with a very small pack, or put a larger pack in hard panniers as suggested, but if you really need a bike that will haul 2 pe...
by LeftieBiker
Apr 13 2019 11:55pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: escooter not lasting as expected SLA battery
Replies: 10
Views: 238

Re: escooter not lasting as expected SLA battery

Now you know what happens when an SLA battery is repeatedly run too low and then left undercharged (it's too common, so the first owner also likely did it). When you get new batteries, remember: * Stop IMMEDIATELY when the scooter starts to slow down. A voltmeter will give you some warning, by dippi...
by LeftieBiker
Apr 13 2019 1:26am
Forum: E-Scooter and Motorcycle General Discussion
Topic: chinese e scooter missing battery pack
Replies: 24
Views: 829

Re: chinese e scooter missing battery pack

Was the charger installed on the scooter? Maybe someone attempted to implement an onboard charger, and ended up with a setup that requires the charger to be continuously in the circuit...