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Search: Posts Made By: gsa103
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05-06-21, 11:30 AM
Replies: 13
Views: 532
Posted By gsa103

Not a problem at all. General rule of thumb...

Not a problem at all.

General rule of thumb for Li-Ion batteries. Keep it in the 80%-20% range for normal usage. For example, Tesla recommends charging often ("A plugged in Tesla is a happy...
05-06-21, 11:20 AM
Replies: 23
Views: 611
Posted By gsa103

The big difference is that tube can move relative...

The big difference is that tube can move relative to tire carcass. So as the tube flexes and distorts the sealant plug gets knocked loose. With a tubeless tire, the carcass is thicker and the...
05-06-21, 10:56 AM
Replies: 9
Views: 288
Posted By gsa103

Below 50V, the resistance of your body will...

Below 50V, the resistance of your body will prevent a lethal shock from occurring. That's a guideline from most electrical safety stuff. A 48V battery is technically above that, 54.6V at full...
Forum: Road Cycling
03-23-21, 05:45 PM
Replies: 31
Views: 2,229
Posted By gsa103

You forgot poor biomechanics. That's trainable,...

You forgot poor biomechanics. That's trainable, but people rarely train cycling technique (other than some mountain bike skills). And triathletes are a different case, it makes sense for them to...
03-22-21, 06:19 PM
Replies: 11
Views: 376
Posted By gsa103

There's two basic strategies for Shimano,...

There's two basic strategies for Shimano, top-down or bottom-up. The Park video is the bottom-up strategy. The official Shimano procedure is a top-down, which doesn't require the syringe, just...
03-22-21, 02:52 PM
Replies: 5
Views: 230
Posted By gsa103

It's pretty simple. If the tire has the same...

It's pretty simple. If the tire has the same volume as the air chamber, the new pressure will be half 1/(1+1). If the tire is 2x the volume of the chamber it will be 1/3 the pressure after 1/(1+2)....
03-22-21, 01:24 PM
Replies: 5
Views: 230
Posted By gsa103

For a fat bike, you can probably just load it up...

For a fat bike, you can probably just load it up to whatever is comfortable pumping it up to. The pressure will go down when it expands to the volume of the tire. I'd go to at least to about 120psi...
03-19-21, 06:38 PM
Replies: 23
Views: 1,728
Posted By gsa103

Rule #25: The bikes on top of your car should be...

Rule #25: The bikes on top of your car should be worth more than the car.
03-15-21, 04:24 PM
Replies: 26
Views: 789
Posted By gsa103

Don't tighten the top cap down so much. Just get...

Don't tighten the top cap down so much. Just get it snug. The air pressure in the tire keeps it closed, the screw is redundancy. If you really tighten the top cap down, you're more likely to...
03-02-21, 07:02 PM
Replies: 7
Views: 845
Posted By gsa103

Only if you have spare batteries, which most...

Only if you have spare batteries, which most people probably don't carry. At this point Li-ion batteries are cheap and so dramatically better, that I can't recommend anyone get a AA powered light. ...
02-25-21, 12:15 PM
Replies: 14
Views: 1,004
Posted By gsa103

Bafang is fine. The integration here is garbage....

Bafang is fine. The integration here is garbage. If you look closely at a Bafang motor mount, there's an extra screw hole, so you can bolt the motor to the frame. Jones didn't even bother to...
02-24-21, 05:40 PM
Replies: 18
Views: 1,138
Posted By gsa103

At least a couple of the local bike shops in your...

At least a couple of the local bike shops in your area should be able to do basic fork/shock service. Look for any bike shop that caters to mountain bikes.
Shock service on a basic air shock is...
02-12-21, 03:19 PM
Replies: 20
Views: 570
Posted By gsa103

I tried them as well because I ride with goat...

I tried them as well because I ride with goat heads. They will self-seal enough to get you home, but not more than that. The flex between the tire & tube means that the sealant can't properly seal,...
01-28-21, 07:45 PM
Replies: 54
Views: 2,478
Posted By gsa103

Poster responds by posting picture of a Dutch...

Poster responds by posting picture of a Dutch commuter bike.....Although, honestly a proper Dutch bike has a slacker fork and would probably handle better.

For anyone wondering. Single track...
01-20-21, 12:40 PM
Replies: 12
Views: 585
Posted By gsa103

It dries to a flexible rubber.

It dries to a flexible rubber.
01-14-21, 03:08 PM
Replies: 83
Views: 3,981
Posted By gsa103

Most BMW drivers don't opt for that feature. I...

Most BMW drivers don't opt for that feature. I think its a pretty expensive item....
01-05-21, 03:48 PM
Replies: 7
Views: 465
Posted By gsa103

It'll definitely take paint off, it just depends...

It'll definitely take paint off, it just depends on how you set the laser. It shouldn't touch chrome, but it would removed degraded chrome plating. The laser is vaporizing the rust. It relies on...
01-04-21, 01:29 PM
Replies: 3
Views: 314
Posted By gsa103

Turn the wheel over and give it a few whacks? ...

Turn the wheel over and give it a few whacks? Place something vibrating on the hub, and it will usually drop out.
01-04-21, 11:53 AM
Replies: 11
Views: 1,015
Posted By gsa103

Go look at the videos of XC and DH World Cup runs...

Go look at the videos of XC and DH World Cup runs from 1995-2005. Then compare those courses to a modern XC course is far far more technical than those older bikes were ever designed to handle. ...
12-21-20, 03:44 PM
Replies: 14
Views: 1,492
Posted By gsa103

Flow and berm type trails are good step towards...

Flow and berm type trails are good step towards drops and things like that. I'm not talking a full bike park, but they let you practice popping off a lip and body positioning in a very controlled...
Forum: Road Cycling
12-18-20, 11:51 AM
Replies: 15
Views: 1,113
Posted By gsa103

NorCal Cycling has a lot of Cat 1-5 racing...

NorCal Cycling has a lot of Cat 1-5 racing analysis. It's a very interesting discussion on racing tactics.
Forum: Road Cycling
12-17-20, 01:03 PM
Replies: 148
Views: 8,882
Posted By gsa103

Ok, I'm going to take the bait. Both your...

Ok, I'm going to take the bait. Both your statements are true and completely consistent.

Those that can afford a $5k+ bike are mostly saving MORE money during the pandemic. High income...
12-09-20, 01:56 PM
Replies: 13
Views: 600
Posted By gsa103

I think this is the issue. The asymmetric...

I think this is the issue. The asymmetric braking force from the disc is probably increasing the spoke tension, causing the nipple to flex. The clearcoat can't take it.

I think it's a...
12-07-20, 01:35 PM
Replies: 23
Views: 2,186
Posted By gsa103

There's two distinct styles of ebikes. Pedal...

There's two distinct styles of ebikes. Pedal first ebikes, which are design to look and ride like a normal bike. And throttle ebikes, where the pedals are largely vestigial and included for...
12-04-20, 01:15 PM
Replies: 10
Views: 1,363
Posted By gsa103

The battery and the motor are frequently...

The battery and the motor are frequently 15-20lbs. Just for reference, a heavy wheelset is around 2.3kg and a light wheelset is about 1.5kg, so the most you could possibly save by upgrading wheels...
12-03-20, 11:39 AM
Replies: 49
Views: 2,691
Posted By gsa103

I'm sure she's strong, but it's hard to push down...

I'm sure she's strong, but it's hard to push down with more force than you weigh, unless you really pull on the handlebars. My point is that it's unlikely that she's putting down that much more...
11-20-20, 06:44 PM
Replies: 27
Views: 1,631
Posted By gsa103

Larger front rotors helps balance braking forces...

Larger front rotors helps balance braking forces front and rear. If you apply the same level pull, the greater leverage of the front rotor means that you'll get more braking on the front. That's a...
Forum: Road Cycling
11-20-20, 03:30 PM
Replies: 131
Views: 6,417
Posted By gsa103

The real issue is the service motos, which only...

The real issue is the service motos, which only carry wheels. They only have a finite number of wheels, and rim wheels are very standard. With disc you have to make sure it has the right thru-axle,...
11-19-20, 06:04 PM
Replies: 78
Views: 5,196
Posted By gsa103

In that case, it's fine. Honestly, it's a very...

In that case, it's fine. Honestly, it's a very through repair. I don't know that I'd trust it to last thousands of miles with various potholes and irregular impacts, but as a trainer it'll never...
11-19-20, 01:25 PM
Replies: 78
Views: 5,196
Posted By gsa103

The big difference is the Navy is that there's...

The big difference is the Navy is that there's some engineer who's worked out exactly how many wraps you need and how far they need to overlap. And there's a 57 page procedure detailing every step. ...
11-18-20, 03:36 PM
Replies: 7
Views: 526
Posted By gsa103

What you're talking about is very easy to do...

What you're talking about is very easy to do during the design of a frame, and some carbon frames do that. Once the frame is already built, it could potentially be done, but I wouldn't really trust...
Forum: Commuting
11-13-20, 02:30 PM
Replies: 14
Views: 4,333
Posted By gsa103

Thanks, those look like a good option. Wear...

Thanks, those look like a good option. Wear probably isn't a huge issue, I'm probably looking at about 2k mi/year.
11-12-20, 01:05 PM
Replies: 7
Views: 630
Posted By gsa103

Buy some tubeless rim tape and run it essentially...

Buy some tubeless rim tape and run it essentially edge to edge.
Forum: Commuting
11-09-20, 07:23 PM
Replies: 18
Views: 5,307
Posted By gsa103

One pannier definitely effects the handling of...

One pannier definitely effects the handling of the bike once it gets into the ~15 lbs range. Riding in a straight-line, you'll never notice it. When you corner, the bike will tend to corner faster...
Forum: Commuting
11-09-20, 07:16 PM
Replies: 41
Views: 11,746
Posted By gsa103

That would be Trek's IsoSpeed front decoupler. ...

That would be Trek's IsoSpeed front decoupler. https://road.cc/content/tech-news/185033-new-trek-domane-slr-launched-front-and-rear-isospeed-decouplers
It lets the fork shift front/back slightly,...
11-09-20, 06:58 PM
Replies: 53
Views: 2,292
Posted By gsa103

For reference, aircraft explicitly DO NOT use GPS...

For reference, aircraft explicitly DO NOT use GPS for altitude. Aircraft altitude is always barometric primary. An ILS approach can utilize GPS but the primary altitude data will be from a...
11-06-20, 05:39 PM
Replies: 17
Views: 1,059
Posted By gsa103

Did you use a new olive on the compression...

Did you use a new olive on the compression fitting?
11-06-20, 01:00 PM
Replies: 9
Views: 979
Posted By gsa103

It's the repairs like this that always confuse me...

It's the repairs like this that always confuse me the most. The ones which obviously require considerable skill, yet at the same time have absolutely no idea what they're doing.
Forum: Commuting
11-06-20, 11:07 AM
Replies: 25
Views: 6,500
Posted By gsa103

This reminders of a friend in college. During...

This reminders of a friend in college. During the Bay Area winter rainy season, he simply wore swim trunks to class (it was still usually above 60F and short rides). He'd get off his bike, brush...
11-06-20, 10:54 AM
Replies: 49
Views: 2,968
Posted By gsa103

With KMC master links, they are easy to remove if...

With KMC master links, they are easy to remove if you push the sides inward, then try to slide them.
When dealing with chains, I have a 3" long piece of wire coat hangar with a 1" bend in each...
11-03-20, 06:06 PM
Replies: 16
Views: 1,217
Posted By gsa103

Shimano has no reason to take responsibility,...

Shimano has no reason to take responsibility, it's the result of corrosion from sealant. The rims are anodized, but there's obviously small pinholes in that allow the corrosion to start.
Stan's...
11-03-20, 11:07 AM
Replies: 12
Views: 826
Posted By gsa103

The limiting factor is likely going to be the...

The limiting factor is likely going to be the Aluminum threads in the mounting piece, not the strength of the bolt (Ti excluded).
11-03-20, 11:00 AM
Replies: 23
Views: 1,096
Posted By gsa103

One of the big differences is the intended...

One of the big differences is the intended operating environment for automotive vs bicycle brakes. With bicycles, the calipers rarely get above water's boiling point. So if you get a little bit of...
11-02-20, 03:20 PM
Replies: 6
Views: 432
Posted By gsa103

The actual motivation is that the compression...

The actual motivation is that the compression plug should be centered with respect to the stem bolts. Compression bolts can be kind of long, so adding a spacer raises the plug. Metal steerers use...
11-02-20, 03:12 PM
Replies: 54
Views: 3,184
Posted By gsa103

It's clearly an aluminum frame bike, with a weird...

It's clearly an aluminum frame bike, with a weird angular top and down tube. I have no idea Wilier if made ever a frame like that. It a really distinctive frame design, it seems highly unlikely that...
10-30-20, 04:57 PM
Replies: 57
Views: 2,630
Posted By gsa103

In a still pool for a short period of time. ...

In a still pool for a short period of time. There's a lot of volume in those carbon rims and the frame. The problem is that frame and rims aren't water tight, so once water starts getting in, it'll...
10-30-20, 04:40 PM
Replies: 73
Views: 4,303
Posted By gsa103

Here's the thing with jerseys. Big color...

Here's the thing with jerseys. Big color patterns are good for visibility. All dark/black is bad. Busy patterns are bad, they break up your silhouette. Most camoflage works by breaking up edges...
10-30-20, 04:33 PM
Replies: 70
Views: 4,202
Posted By gsa103

Park Tools are good quality, but definitely a...

Park Tools are good quality, but definitely a step below Wera/Wiha/Snap-On. For general purpose tools, like hex keys, I would go with some other vendor where there's better value. The advantage of...
10-30-20, 12:13 PM
Replies: 25
Views: 3,841
Posted By gsa103

During riding the battery should keep itself...

During riding the battery should keep itself warm. Maybe a little bit of wind blocking around it is all you need. With that amount of drag, it'll have no trouble generating enough heat to stay...
10-27-20, 02:41 PM
Replies: 7
Views: 1,846
Posted By gsa103

Yep, it depends on a how big your feet are and...

Yep, it depends on a how big your feet are and how high the bottom bracket on the bike is. I can get my toes down on my road bike, my full suspension mountain bike has a much higher bottom bracket...
Showing results 1 to 50 of 74
 


 
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