Search: Posts Made By: jab
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Forum: Road Cycling
01-05-06, 12:29 AM
Replies: 10
Views: 1,093
Posted By jab

This is horrible! He was a hell of a guy. He'll...

This is horrible! He was a hell of a guy. He'll be missed.

DJP was my "cycling mentor", or whatever. I was wondering why I hadn't heard back from him.

I just don't know what to say. :(
...
11-04-05, 07:28 PM
Replies: 2
Views: 429
Posted By jab

Tonight while riding south on Gilman Dr. (right...

Tonight while riding south on Gilman Dr. (right about here (http://maps.google.com/maps?q=32.866900,-117.23750)), I saw traffic backed up due to police activity in the left traffic lane and center...
10-23-05, 11:19 PM
Replies: 25
Views: 1,605
Posted By jab

Hmm, the schematic you linked to shows the...

Hmm, the schematic you linked to shows the transformer rated at 10A and a fuse limiting the output to 10A. How were you planning to get 30A out of this?

Anyhow, the schematic looks like a basic,...
Forum: Commuting
09-23-05, 09:50 AM
Replies: 13
Views: 767
Posted By jab

First off, I should make it clear that I haven't...

First off, I should make it clear that I haven't actually done this, so it may all work fine. :)

With 8 alkalines, you'll have an initial voltage closer to 12.0V, and it will drop pretty evenly...
Forum: Commuting
09-22-05, 09:16 PM
Replies: 13
Views: 767
Posted By jab

REI rules. I haven't done this...

REI rules.



I haven't done this exactly, but there a few things to keep in mind.

First off, the nominal voltage of NiMH rechargeables is 1.25V; they start out fresh at around 1.40V, but...
Forum: Commuting
09-22-05, 08:38 PM
Replies: 20
Views: 865
Posted By jab

There have been several threads on Bike Forums...

There have been several threads on Bike Forums regarding GPS; a "search titles only" search for "GPS" may prove informative.



I'm no expert, but I recall reading that modern GPS receivers...
08-24-05, 06:01 PM
Replies: 123
Views: 4,137
Posted By jab

Some of those pictures... wow. -JAB

Some of those pictures... wow.

-JAB
08-24-05, 01:18 PM
Replies: 123
Views: 4,137
Posted By jab

Today's SD Union Tribune coverage...

Today's SD Union Tribune coverage (http://www.signonsandiego.com/news/metro/20050824-0921-bn24marine.html) identifies him:



:(

-JAB
08-23-05, 11:41 AM
Replies: 123
Views: 4,137
Posted By jab

From this morning: ...

From this morning:

http://www.signonsandiego.com/news/metro/20050823-0816-bn23fatal.html



For the non-locals, this is a pretty popular stretch of road with cyclists; it has wide lanes, a...
08-12-05, 10:42 PM
Replies: 7
Views: 701
Posted By jab

It sure is. *sigh* Maybe I'll get "lucky" and...

It sure is. *sigh* Maybe I'll get "lucky" and actually get hit next time; until then, I'll ride with my head high, confident that I can legally respond to their intentional, life-threatening moves...
08-11-05, 11:02 PM
Replies: 7
Views: 701
Posted By jab

Neither did I, particularly given the lack of...

Neither did I, particularly given the lack of consequences in many instances when motorists have actually hit cyclists. I had to try, though; that was my reward for not kicking in his tail-light.
...
08-10-05, 08:28 PM
Replies: 7
Views: 701
Posted By jab

Police Report in San Diego?

Hi all,

I was just the lucky recipient of a blatant "close shave" whilst out on our fine City's arterial streets, within a few hundred meters of a red light no less. It was all I could do not to...
Forum: Road Cycling
08-09-05, 02:10 AM
Replies: 7
Views: 426
Posted By jab

Having used both, my feeling is that my wired...

Having used both, my feeling is that my wired bike computer measures trip distances and speeds more precisely (that is, the measurements group more tightly) than my GPS units. The bike computer...
Forum: Road Cycling
08-09-05, 01:43 AM
Replies: 15
Views: 555
Posted By jab

Hi, I've experimented with both a Garmin...

Hi,

I've experimented with both a Garmin GPSMAP 60CS and a Garmin eTrex Vista. The details here pertain to the Vista, which I prefer for cycling. I don't know which of the readings is more...
08-01-05, 12:57 AM
Replies: 4
Views: 1,738
Posted By jab

No, you're good to go. You can interchange the...

No, you're good to go. You can interchange the pads.

More specifically, the 105 brakes I've looked at up close (2004 model) have removable "cartridge" style pads, and Kool-Stop "Dura-Type" pads...
Forum: Commuting
07-08-05, 12:31 AM
Replies: 33
Views: 1,333
Posted By jab

I bought one of these cheapo Nashbar tail lights,...

I bought one of these cheapo Nashbar tail lights, cut the switch off for use with my "Total Geekiness" light rig, and gave actual light away.

The switch itself, I installed on my rear V-brake, and...
Forum: Road Cycling
07-08-05, 12:11 AM
Replies: 29
Views: 1,409
Posted By jab

I just checked mine; they say "KENDA" on the...

I just checked mine; they say "KENDA" on the tubes themselves.


The Specialized tubes I've encountered in my recent search have all had threaded stems. I didn't note which models they were,...
Forum: Road Cycling
07-07-05, 10:06 PM
Replies: 29
Views: 1,409
Posted By jab

Giant makes them, as another has mentioned. I've...

Giant makes them, as another has mentioned. I've been using Giant "part 87639", 700x18-23C tubes which have 48mm silver-colored stems. They come with black-colored valve caps.

I've run through...
07-02-05, 08:11 PM
Replies: 14
Views: 990
Posted By jab

I'm a little late to the game, and it's a moot...

I'm a little late to the game, and it's a moot point now, but I'm running an SRAM PC-970 chain on my 2004 Ultegra triple 9-speed crank set (52-42-30). It's been fine for over 1000 miles.

-JAB
07-02-05, 11:44 AM
Replies: 11
Views: 479
Posted By jab

Yes, I've been up to around 800mi/hr myself, the...

Yes, I've been up to around 800mi/hr myself, the same way. :) In my experience, GPS units get sketchy when enough satellites are obstructed, or coming around a corner in a mountain pass when the...
07-02-05, 12:55 AM
Replies: 11
Views: 479
Posted By jab

You could start out with the 23c setting in the...

You could start out with the 23c setting in the computer (rolling diameter 2097mm, per Sheldon (http://sheldonbrown.com/cyclecomputer-calibration.html#ccc)), and use your GPS to fine-tune it.

-JAB
Forum: Commuting
06-27-05, 12:36 AM
Replies: 1
Views: 334
Posted By jab

If you're setting up your own power supply...

If you're setting up your own power supply appropriate for the 12V bulb, and the 12V bulb is also 10W, I don't forsee any problems. I haven't done this specific modification, but I have worked on...
Forum: Triathlon
06-22-05, 10:23 PM
Replies: 16
Views: 1,060
Posted By jab

I set out to buy a 1GB iRiver 700 or 800-series...

I set out to buy a 1GB iRiver 700 or 800-series flash-based player, but ended up with a Creatve MuVo Micro N200...
06-21-05, 11:31 PM
Replies: 8
Views: 684
Posted By jab

http://www.signonsandiego.com/news/metro/20050621-...

http://www.signonsandiego.com/news/metro/20050621-9999-1m21briefs.html



:(
Forum: Road Cycling
06-16-05, 12:07 PM
Replies: 20
Views: 591
Posted By jab

Great! Thanks for the link, I'll definitely have...

Great! Thanks for the link, I'll definitely have to explore some of those.

I've got no qualms about riding in traffic, but it's nice to have places to take newbies or folks who don't know the...
Forum: Road Cycling
06-15-05, 11:39 PM
Replies: 20
Views: 591
Posted By jab

Help the slow guy out, here: where is this bike...

Help the slow guy out, here: where is this bike trail? What's the nearest street intersection to one of the ends?

-JAB
Forum: Road Cycling
06-15-05, 02:46 AM
Replies: 20
Views: 591
Posted By jab

Hi! Most of the places around here seem to...

Hi!

Most of the places around here seem to have mild rolling hills, and lots of cars. When I was getting started with road cycling, the cars were a bigger problem than the hills. Where in the...
06-15-05, 02:18 AM
Replies: 10
Views: 781
Posted By jab

I'm a PowerLink fan myself, but if memory serves,...

I'm a PowerLink fan myself, but if memory serves, SRAM cautions that they should not be re-used beyond the service life of one chain. (When replacing the chain, replace the PowerLink too.)

Ref:...
Forum: Road Cycling
06-15-05, 02:07 AM
Replies: 64
Views: 1,958
Posted By jab

Here's...

Here's (http://www.humantransport.org/bicycledriving/library/signals/green.htm) an informative article on the subject. According to that (and this...
Forum: Touring
06-12-05, 11:40 AM
Replies: 18
Views: 795
Posted By jab

Another small note: when you first turn on a GPS...

Another small note: when you first turn on a GPS unit, it can take anywhere from a few seconds to several minutes to get a location fix. If the unit has been off for more that a few minutes, or if...
Forum: Touring
06-12-05, 11:02 AM
Replies: 18
Views: 795
Posted By jab

Yes. A simple GPS will be fine for that, and...

Yes. A simple GPS will be fine for that, and there are several that can be found for less than $100.



This, I'm not sure about. I would hope that any kind of serious wilderness rescue team...
Forum: Road Cycling
06-06-05, 09:26 PM
Replies: 41
Views: 1,811
Posted By jab

I blabbed on about this in another thread...

I blabbed on about this in another thread (http://www.bikeforums.net/showpost.php?p=1219958&postcount=167); the gravitational component works out as:
power(W) > total_weight(lb) *...
Forum: Road Cycling
06-02-05, 01:22 PM
Replies: 174
Views: 9,034
Posted By jab

I've experienced the same thing. There is a...

I've experienced the same thing.

There is a fundamental minimum power required, which is proportional to vertical speed. There's no escaping this, it's the cost of doing vertical business in a...
05-31-05, 11:58 PM
Replies: 28
Views: 1,331
Posted By jab

I'm don't know which road UCSDbikeAnarchy is...

I'm don't know which road UCSDbikeAnarchy is referring to, but I frequently ride the I-5 shoulder between Genesee and Sorrento in both directions.

The southbound shoulder has no significant fixed...
Forum: Road Cycling
05-09-05, 10:14 PM
Replies: 42
Views: 2,022
Posted By jab

This is my understanding as well. Using my...

This is my understanding as well. Using my Garmin eTrex Vista, for example, if I set a waypoint at my current location, walk a few feet away, and edit the waypoint altitude up 5000', the "distance...
Forum: Road Cycling
05-08-05, 01:12 AM
Replies: 42
Views: 2,022
Posted By jab

Ah, track logging. I've done a bit of...

Ah, track logging. I've done a bit of experimenting with this lately.

First off, a "track" is a sequence of points and optional timestamps. Each point has a latitude and longitude, as well as an...
04-15-05, 12:37 AM
Replies: 10
Views: 834
Posted By jab

Well... the HRM doesn't know that you're not on...

Well... the HRM doesn't know that you're not on the bike, or that you're trying to measure resting HR. :) In both "measure" and "exercise" mode, the unit beeps once per heartbeat when you're...
04-14-05, 12:26 AM
Replies: 10
Views: 834
Posted By jab

Yikes, definitely not. Well, mine doesn't, and...

Yikes, definitely not. Well, mine doesn't, and I'm glad for that! :) If you get the monitor close enough to the transmitter, it will click and display some things, but nothing should be zapping...
04-14-05, 12:20 AM
Replies: 10
Views: 834
Posted By jab

That sounds like the "you're outside of your...

That sounds like the "you're outside of your target zone" warning beep. If you're just standing there, it's nagging you to pick up the pace.

I have this same unit, and I switched off the warning...
Forum: Road Cycling
04-08-05, 12:49 PM
Replies: 42
Views: 2,022
Posted By jab

I'm curious, how did you mount that to your bike?...

I'm curious, how did you mount that to your bike? Or do you wear it on your wrist while riding? If so, is it difficult to keep it facing up?



Trees definitely impair the satellite signal, as...
Forum: Road Cycling
04-06-05, 11:23 PM
Replies: 42
Views: 2,022
Posted By jab

Oh, I neglected to mention the differences...

Oh, I neglected to mention the differences between models re: the compass and altimeter.

Most of Garmin's handhelds are available with a magnetic compass and altimeter, or without:
eTrex VistaC...
Forum: Road Cycling
04-06-05, 10:49 PM
Replies: 42
Views: 2,022
Posted By jab

You can find loads of information about GPS units...

You can find loads of information about GPS units in the "GPS Units and Software" forum here (http://forums.groundspeak.com/gc/).

I've got an eTrex Vista (not the VistaC) and a GPSMAP 60CS, and...
12-18-04, 03:56 AM
Replies: 1,865
Views: 544,463
Posted By jab

I'd like to help! I've been buying my...

I'd like to help!

I've been buying my electronic components at Fry's; they carry the "NTE" line of products. (You can find datasheets at http://www.nteinc.com/.) In the flasher, there are just a...
12-18-04, 03:50 AM
Replies: 1,865
Views: 544,463
Posted By jab

You've got it: it's the flared-out end of a 4"...

You've got it: it's the flared-out end of a 4" ABS fitting, cut just past the flared portion. The light itself is too wide to fit out the narrow (tail) end of the ABS segment, and my roomie used...
12-17-04, 01:58 AM
Replies: 1,865
Views: 544,463
Posted By jab

Oh, no! The Geekiness has spread! My roomie...

Oh, no! The Geekiness has spread!

My roomie just geeked up his bike with an absurdly powerful LED taillight, accompanied by a flasher circuit with a brake switch sensor. Attached are some...
Forum: Commuting
12-16-04, 11:17 PM
Replies: 21
Views: 2,242
Posted By jab

Here's a chintzy way to adapt the 12V soft start...

Here's a chintzy way to adapt the 12V soft start circuit (v1.1) for 6V use.

There are more elegant ways to do this, but I was able to quickly hack the circuit to function in a 6V system, with a...
12-15-04, 09:18 PM
Replies: 8
Views: 685
Posted By jab

Thanks. :) There are currently two 12V flasher...

Thanks. :) There are currently two 12V flasher circuits posted there; the second (more recent) one is a bit simpler.

I use it for flashing 3-4W worth of LEDs, which can turn on and off quickly;...
Forum: Commuting
12-15-04, 06:46 PM
Replies: 48
Views: 6,755
Posted By jab

I happened to pack a GPS unit along and marked...

I happened to pack a GPS unit along and marked what it said was the highest point, at UTM 10 0606097 4140936 (http://www.topozone.com/map.asp?z=10&e=0606097&n=4140936&datum=wgs84&size=l).

If you...
Forum: Commuting
12-15-04, 05:41 PM
Replies: 48
Views: 6,755
Posted By jab

I commute across relatively flat San Jose, so...

I commute across relatively flat San Jose, so this question is interesting to me.

I recently gave hill-climbing a try: I rode up the nearest hill I could think of, which was Sierra Rd (east from...
Forum: Commuting
12-13-04, 03:16 PM
Replies: 21
Views: 2,242
Posted By jab

Ach! I just realized that I mis-drew the soft...

Ach! I just realized that I mis-drew the soft start diagram I initially posted, with D1 backwards. Fixed.

JAB
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