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Search: Posts Made By: cerewa
Forum: Alt Bike Culture 04-01-15, 08:19 AM
Replies: 15
Views: 3,793
Posted By cerewa
i thought this was gonna be about the treadmill...

i thought this was gonna be about the treadmill bike (https://www.youtube.com/watch?v=JWU_md2wmAM), another kind of amusing bike that involves running, kind of.

The 'runbike' seems more appealing...
Forum: Fitting Your Bike 03-25-15, 09:24 PM
Replies: 6
Views: 1,448
Posted By cerewa
JeffOYB I think what you say is completely...

JeffOYB

I think what you say is completely relevant... also be aware that a major factor affecting weight-on-hands is, how much weight is on your butt and how much is on your feet.

If there's a...
Forum: Living Car Free 02-13-15, 04:31 PM
Replies: 65
Views: 2,926
Posted By cerewa
I have a not-really-exciting story but I'll share...

I have a not-really-exciting story but I'll share it anyway. (Part of the point, to me, is that it's not necessarily crazy/weird/interesting to date with no car).

A few years ago I met a lady who,...
Forum: Electric Bikes 11-26-14, 12:04 AM
Replies: 1
Views: 788
Posted By cerewa
Exclamation A lot of little solder connections

This is not a terribly complex problem but the solution is not all that elegant. You can (have someone do this for you or) cut open the wires,add length, and solder them back. Doing so will preserve...
Forum: Living Car Free 11-05-14, 09:55 PM
Replies: 29
Views: 1,216
Posted By cerewa
I didn't bike to vote -- i voted a block and a...

I didn't bike to vote -- i voted a block and a half from my house, and I jogged/ran that distance.

I did, however, wear my bike stuff to a halloween party! Party was a few miles from my house and...
Forum: Living Car Free 11-05-14, 09:47 PM
Replies: 63
Views: 3,740
Posted By cerewa
I recently got an old cheap car. It required a...

I recently got an old cheap car. It required a few hundred dollars for repairs & inspection to become usable but I didn't pay anything for the car itself.

I don't know precisely what car commuting...
Forum: Living Car Free 04-14-14, 08:38 AM
Replies: 78
Views: 3,877
Posted By cerewa
I normally work from home. If I don't, my...

I normally work from home. If I don't, my company's office is about 20 miles away. A train travels all but a few miles of that distance so the most convenient commute ends up being bike-train-bike.
...
Forum: Living Car Free 01-15-14, 06:11 PM
Replies: 32
Views: 1,452
Posted By cerewa
A lot of things have become possible for me...

A lot of things have become possible for me because I haven't spent money on owning a car. I paid off all of my student loans in a year. I invested about one year's worth of income from my job in...
Forum: Electric Bikes 12-14-13, 10:13 AM
Replies: 34
Views: 2,374
Posted By cerewa
That post contains great info. The writer puts...

That post contains great info. The writer puts his focus on hub motors-- hub motors are great because of their simplicity and reliability, in addition to being affordable and widely available. Geared...
Forum: Electric Bikes 11-19-13, 12:43 PM
Replies: 4
Views: 748
Posted By cerewa
regarding post # 1, if you add a BMS use one that...

regarding post # 1, if you add a BMS use one that works with the number of cells (series) you are getting. And if the BMS has a over-current cut off (not all of them do) make sure it is reasonable....
Forum: Electric Bikes 11-19-13, 12:36 PM
Replies: 46
Views: 4,906
Posted By cerewa
The real problem with a 12v ebike system is that...

The real problem with a 12v ebike system is that you probably have to build it yourself.

A 12v 250w system is not comparable to a 48v 500w system. but the watts are the important part.

watts...
Forum: Electric Bikes 11-17-13, 11:20 PM
Replies: 46
Views: 4,906
Posted By cerewa
1.1 & 1.2 Weight: I haven't seen a list of all...

1.1 & 1.2 Weight: I haven't seen a list of all commonly-available motors anywhere. For brushless hub motors, they mostly work the same from one to the next unless you are using it in unusual...
Forum: Electric Bikes 09-29-13, 07:35 AM
Replies: 6
Views: 1,124
Posted By cerewa
Sounds like the problem is not the batteries but...

Sounds like the problem is not the batteries but the gear ratio. Your motor is built to spin at a certain speed when running at 24v. With the gearing you used that works out to about 600 rpm at the...
Forum: Electric Bikes 09-24-13, 07:16 AM
Replies: 31
Views: 6,506
Posted By cerewa
I have experience with cyclone (non hub motor)...

I have experience with cyclone (non hub motor) and with a no-name Chinese hub motor system. The cyclone system did not last long due to failure of the controller. First time was my fault since I let...
Forum: Electric Bikes 09-22-13, 09:43 PM
Replies: 11
Views: 1,402
Posted By cerewa
The wobble probably has something to do with the...

The wobble probably has something to do with the geometry of the bike. If that's true there isn't much you can do beyond what you already know-- relax your hold on the handlebars if that works......
Forum: Electric Bikes 09-22-13, 09:28 PM
Replies: 14
Views: 1,530
Posted By cerewa
If you are using this on a tandem with two riders...

If you are using this on a tandem with two riders while going uphill, that will draw a lot of power. Would make sense if the battery is dropping below the "low voltage cutoff" in those conditions
Forum: Electric Bikes 09-07-13, 08:00 PM
Replies: 3
Views: 638
Posted By cerewa
I am not a lawyer. For a proper interpretation of...

I am not a lawyer. For a proper interpretation of the law, speak to a lawyer.

With that said, I do not think your bike is legal for ON ROAD use. You can sell it on craigslist but you should inform...
Forum: Living Car Free 08-20-13, 02:41 PM
Replies: 12
Views: 573
Posted By cerewa
The one i lean on the most is Google Maps for...

The one i lean on the most is Google Maps for Android (with GPS features). I occasionally borrow a car, usually to go somewhere I can't find without directions. I take public transit fairly often to...
Forum: Electronics, Lighting, & Gadgets 05-19-13, 06:17 PM
Replies: 78
Views: 24,285
Posted By cerewa
I have used the Google Maps android app for...

I have used the Google Maps android app for turn-by-turn driving directions. Have not tried to do it for cycling but I imagine it would work fine.
Forum: Electric Bikes 05-13-13, 08:10 AM
Replies: 12
Views: 776
Posted By cerewa
if you weld the wheel on, you won't be able fix...

if you weld the wheel on, you won't be able fix a flat tire
Forum: Living Car Free 04-04-13, 12:12 PM
Replies: 142
Views: 3,256
Posted By cerewa
Disclaimer: I am not a lawyer. If you want to...

Disclaimer: I am not a lawyer. If you want to confirm whether you should file a case, do ask a lawyer.



The answer you seek is here: http://en.wikipedia.org/wiki/Protected_class

In the USA,...
Forum: Electric Bikes 03-16-13, 08:17 AM
Replies: 13
Views: 2,360
Posted By cerewa
48v20ah cheap Chinese lifepo4. Bike weight about...

48v20ah cheap Chinese lifepo4. Bike weight about 80 lbs (just guessing) rider weight 135lbs. Don't know exact range but it's a lot. I don't use e assist for 90% of my power but I think I'd go a...
Forum: Living Car Free 03-06-13, 01:37 PM
Replies: 68
Views: 1,980
Posted By cerewa
I'm 30; never owned a car but almost always had a...

I'm 30; never owned a car but almost always had a valid driver's license and find it pretty useful a few time a year. My wife has never had a driver's license and the has never been a problem for her.
Forum: Electric Bikes 02-22-13, 09:01 AM
Replies: 2
Views: 553
Posted By cerewa
Depending on how fast you charge, you may need to...

Depending on how fast you charge, you may need to take the battery out of the box to charge. But when you are riding, the metal box should be fine. There is not much heat produced if you are riding...
Forum: Electric Bikes 02-09-13, 11:16 PM
Replies: 329
Views: 25,148
Posted By cerewa
When used for an e bike or scooter a lead acid...

When used for an e bike or scooter a lead acid battery provides about half of the rated amp hours. What this means is that a 48v20ah lifepo4 battery will provide similar range to what you got with...
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