Search: Posts Made By: cerewa
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04-01-15, 08:19 AM
Replies: 15
Views: 4,954
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...
03-25-15, 09:24 PM
Replies: 6
Views: 1,871
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...
02-13-15, 04:31 PM
Replies: 65
Views: 3,427
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,...
11-26-14, 12:04 AM
Replies: 1
Views: 909
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...
11-05-14, 09:55 PM
Replies: 29
Views: 1,434
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...
11-05-14, 09:47 PM
Replies: 63
Views: 4,291
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...
04-14-14, 08:38 AM
Replies: 78
Views: 4,267
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.
...
01-15-14, 06:11 PM
Replies: 32
Views: 1,688
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...
12-14-13, 10:13 AM
Replies: 34
Views: 3,114
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...
11-19-13, 12:43 PM
Replies: 4
Views: 900
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....
11-19-13, 12:36 PM
Replies: 46
Views: 6,642
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...
11-17-13, 11:20 PM
Replies: 46
Views: 6,642
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...
09-29-13, 07:35 AM
Replies: 6
Views: 1,467
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...
09-24-13, 07:16 AM
Replies: 31
Views: 10,019
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...
09-22-13, 09:43 PM
Replies: 11
Views: 2,325
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......
09-22-13, 09:28 PM
Replies: 14
Views: 3,987
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
09-07-13, 08:00 PM
Replies: 3
Views: 775
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...
08-20-13, 02:41 PM
Replies: 12
Views: 670
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...
05-19-13, 06:17 PM
Replies: 78
Views: 31,124
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.
05-13-13, 08:10 AM
Replies: 12
Views: 956
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
04-04-13, 12:12 PM
Replies: 142
Views: 4,108
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,...
03-16-13, 08:17 AM
Replies: 13
Views: 2,566
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...
03-06-13, 01:37 PM
Replies: 68
Views: 2,264
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.
02-22-13, 09:01 AM
Replies: 2
Views: 675
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...
02-09-13, 11:16 PM
Replies: 329
Views: 29,521
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...
02-07-13, 12:27 PM
Replies: 14
Views: 911
Posted By cerewa

The video is meant to "diss" vehicles like this...

The video is meant to "diss" vehicles like this -- essentially to make the point that a 4 wheel ATV with turn signals and headlight/taillight does not make a good car. what gets me is that they seem...
02-06-13, 05:59 AM
Replies: 11
Views: 9,432
Posted By cerewa

I thought you are asking if you should buy a 48v...

I thought you are asking if you should buy a 48v motor even if you are set on a 36v battery. There is probably no benefit to using the 48v motor unless you match it up to a 48v battery.

In reality...
01-30-13, 06:08 AM
Replies: 12
Views: 5,273
Posted By cerewa

10% grade is not really what hub motors are...

10% grade is not really what hub motors are designed for. Normally, hub motors aren't very efficient when climbing hills that steep. My hub motor would function fine if used continuously at 10% grade...
01-28-13, 08:24 PM
Replies: 30
Views: 1,380
Posted By cerewa

Roody -- you mention "prepaid instead of...

Roody -- you mention "prepaid instead of contract" ... this is one of the best-kept secrets right now in cell phones. In the US a bunch companies re-sell cellular service which they buy "wholesale"...
01-09-13, 04:31 PM
Replies: 52
Views: 4,829
Posted By cerewa

At market rates for work hours.... several...

At market rates for work hours.... several thousands of dollars worth of person-hours have probably gone in to this disagreement over a dollar worth of electricity.
01-07-13, 07:38 AM
Replies: 6
Views: 867
Posted By cerewa

It's not an e bike according to how e bike is...

It's not an e bike according to how e bike is defined here and elsewhere. To be classified by law as an e bike it must have pedals and must have limited speed (many places limit you to 20mph). As a...
12-30-12, 01:26 AM
Replies: 213
Views: 6,994
Posted By cerewa

In Seattle and western Washington I can certainly...

In Seattle and western Washington I can certainly believe that's the case. Philadelphia, where I live, is like most poor urban communities in the US -- children go to public schools in the city if...
12-17-12, 08:17 AM
Replies: 7
Views: 785
Posted By cerewa

I can certainly see the benefit of using a small...

I can certainly see the benefit of using a small gas or diesel motor. Once you have one, I'm not sure it's worth it to carry around the batteries and electric motor. You lose a lot of energy if you...
12-15-12, 02:38 PM
Replies: 17
Views: 1,440
Posted By cerewa

Use a freewheel and plan to spend $15 replacing...

Use a freewheel and plan to spend $15 replacing it every year. I cycled through the winter for 2 years in Montreal, and actually one freewheel got me through the two years. It did require re-applying...
12-10-12, 08:20 PM
Replies: 6
Views: 863
Posted By cerewa

When people say "Alternating Current" they...

When people say "Alternating Current" they usually mean current that alternates at a specific frequency such as 60Hz. The current received by a "brushless DC" ebike motor is essentially alternating...
12-10-12, 12:56 PM
Replies: 60
Views: 3,016
Posted By cerewa

From a comfort and fitness point of view, it's...

From a comfort and fitness point of view, it's possible for me to ride 60 miles in one day. (I've done it once, years ago, and I am in better shape than I was then). When it comes to what I actually...
12-08-12, 09:53 PM
Replies: 62
Views: 10,661
Posted By cerewa

Regarding the wheels on ezip and similardeartment...

Regarding the wheels on ezip and similardeartment store bikes .... I consider them completely usable for people my size (130lbs), but would also caution people that after 5 years the wheels and...
12-07-12, 11:21 PM
Replies: 48
Views: 2,499
Posted By cerewa

My fiancee has been car free (and drivers license...

My fiancee has been car free (and drivers license free) all her life. As for me, I've never owned a car but I've driven quite a bit in my life.
12-05-12, 05:36 PM
Replies: 125
Views: 7,978
Posted By cerewa

What stops me from riding is the internet. (I can...

What stops me from riding is the internet. (I can work from home most of the time, and when I don't need to go from one place to another i usually don't ride a bike)
11-10-12, 07:31 AM
Replies: 128
Views: 6,520
Posted By cerewa

Does not having a car make it hard to date? Not...

Does not having a car make it hard to date? Not in my case. I got engaged to a woman who's depended on public transit and bikes all her life and has never had a driver's license.
11-03-12, 02:07 PM
Replies: 38
Views: 1,547
Posted By cerewa

Why ebike beats a car in certain emergencies: it...

Why ebike beats a car in certain emergencies: it can bypass gridlocked cars, and is still useful when completely out of battery. (Try that with a car that's out of gas!). I've been thinking of...
10-06-12, 02:34 PM
Replies: 72
Views: 2,448
Posted By cerewa

if i were in the OP's position i would want to...

if i were in the OP's position i would want to know if grandma and grandpa are willing to deal with the effort of selling the thing. Might want to sell it for them and then tell them the cash belongs...
09-25-12, 07:27 AM
Replies: 31
Views: 1,684
Posted By cerewa

If you build it with three wheels, even if it has...

If you build it with three wheels, even if it has a car-like body that protects passengers from rain, it can be classified as a motorcycle in the USA (probably many other places). That would mean it...
09-07-12, 08:35 AM
Replies: 246
Views: 6,821
Posted By cerewa

Here's some things for if you're bored and you...

Here's some things for if you're bored and you can afford it:
rowing bike
velomobile
flevobike (steers by bending at the center rather than the front)

although lately, for reasons of...
09-07-12, 08:27 AM
Replies: 13
Views: 783
Posted By cerewa

Joe Biden on Cars & Mitt Romney

As a car free person, I frowned a little when I heard Joe Biden talk about the car industry. Joe says to us, "Mitt is a good guy. I mean, he grew up loving cars as much as I did".

I know he didn't...
09-07-12, 08:16 AM
Replies: 22
Views: 896
Posted By cerewa

I don't think this thing would be uncomfortable....

I don't think this thing would be uncomfortable. Your back muscles hurt if they have to hold you up in a position like that, but they don't because the straps hold you up instead. I think it's...
09-04-12, 10:49 PM
Replies: 246
Views: 6,821
Posted By cerewa

This is why house+car don't appeal to young...

This is why house+car don't appeal to young people that much. We'll take 'em if it's easy but we want vehicle+house to serve us and our goals & purposes, rather than divert us from our goals &...
08-06-12, 07:05 PM
Replies: 52
Views: 4,829
Posted By cerewa

I used to bring my battery and charger inside to...

I used to bring my battery and charger inside to charge up. People at my office found it strange at first but none of them said anything about the cost to the company. (of something like $0.05/day in...
07-30-12, 08:30 AM
Replies: 112
Views: 9,350
Posted By cerewa

As long as you didn't pay 35 ducatis for it!

As long as you didn't pay 35 ducatis for it!
07-30-12, 07:35 AM
Replies: 112
Views: 9,350
Posted By cerewa

That's more than i paid for my two bikes. :) I...

That's more than i paid for my two bikes. :) I got 'em both for free! Which doesn't reflect their real value. At the time they were given to me they each had a market value in the $75 to $150 range....
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