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Search: Posts Made By: oldbobcat
Showing results 1 to 50 of 1000
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02-02-23, 10:29 PM
Replies: 32
Views: 796
Posted By oldbobcat

How about this? Leave the hub alone and buy a...

How about this? Leave the hub alone and buy a pair of "P" clamps to connect the rack stanchions to the bottom of the fork blades?
02-02-23, 10:22 PM
Replies: 11
Views: 228
Posted By oldbobcat

You might be able to fashion a fixed cup vise...

You might be able to fashion a fixed cup vise with hex nut that fits snugly into the notches in the cup socket fitting. Fasten to bolt inserted from inside to prevent slipping.
02-02-23, 08:04 PM
Replies: 14
Views: 488
Posted By oldbobcat

Some people just want to talk.

Some people just want to talk.
01-30-23, 09:47 PM
Replies: 22
Views: 349
Posted By oldbobcat

I use the widest point at the butt as the...

I use the widest point at the butt as the baseline. And I haven't switched saddles in eight years so it isn't much of a problem.
01-28-23, 01:02 PM
Replies: 53
Views: 1,147
Posted By oldbobcat

Probably an old wives' tale. Or it may be a guide...

Probably an old wives' tale. Or it may be a guide to finding your minimum toeclip size from back in the day when we all used them.
01-28-23, 12:59 PM
Replies: 53
Views: 1,147
Posted By oldbobcat

You just have more latitude than some of us. I...

You just have more latitude than some of us. I can't explain it. My range is more like 6 millimeters. Beyond the front of that, my hands start to hurt. That also is the point where my spin falls...
01-28-23, 12:49 PM
Replies: 29
Views: 892
Posted By oldbobcat

I was being facetious. Any modification to a...

I was being facetious. Any modification to a carbon steerer besides cutting off the excess off the top is tempting disaster. Just don't do it.
01-27-23, 07:13 PM
Replies: 53
Views: 1,147
Posted By oldbobcat

If you're getting a usable range of 5 centimeters...

If you're getting a usable range of 5 centimeters (that would be about two inches), you're probably not doing it right. What is your cruising torso angle, or what is your handlebar height in relation...
01-27-23, 06:37 PM
Replies: 12
Views: 325
Posted By oldbobcat

Because they were never properly tightened in the...

Because they were never properly tightened in the first place?
01-27-23, 06:24 PM
Replies: 19
Views: 333
Posted By oldbobcat

Definitely time to change cables.

Definitely time to change cables.
01-27-23, 06:22 PM
Replies: 29
Views: 892
Posted By oldbobcat

Or JB Weld, right?

Or JB Weld, right?
01-27-23, 06:22 PM
Replies: 29
Views: 892
Posted By oldbobcat

And how many layers of structural carbon fiber do...

And how many layers of structural carbon fiber do you think would be removed in reaming 1/16" of material from inside the clamp?
01-27-23, 06:13 PM
Replies: 3
Views: 149
Posted By oldbobcat

Maybe it's the pawls holding it back. The click...

Maybe it's the pawls holding it back. The click is when the pawls lock in, so try twisting and holding it between clicks when you pull.
01-26-23, 06:25 PM
Replies: 18
Views: 662
Posted By oldbobcat

For most of us, setback allows us to maintain our...

For most of us, setback allows us to maintain our centers of mass over our feet. The head and torso are heavy,and if the hips are too far forward no amount of lower back strength is going to keep...
01-26-23, 05:34 PM
Replies: 9
Views: 304
Posted By oldbobcat

Absolutely. An 18 mm change in setback is nearly...

Absolutely. An 18 mm change in setback is nearly as consequential as an 18 mm change in saddle height. When I switched from a Giant TCR (72.5 degree seat tube) to a Trek Madone (73.0 degree seat...
01-26-23, 05:25 PM
Replies: 14
Views: 488
Posted By oldbobcat

I don't know how you're sitting on the Litespeed....

I don't know how you're sitting on the Litespeed. But generally, an "endurance" road bike, with a longer head tube, shorter top tube, and slacker steering axis, can serve as your last stop before...
01-26-23, 05:13 PM
Replies: 6
Views: 316
Posted By oldbobcat

Generally, the one with the acute angle is for...

Generally, the one with the acute angle is for the rear. But it's not a big deal,. You can bend these a little bit.
01-25-23, 08:42 PM
Replies: 25
Views: 655
Posted By oldbobcat

It looks very much like somebody at one time or...

It looks very much like somebody at one time or another pried the clamp with a chisel or screwdriver to squeeze an oversize handlebar in there. The shape of the gap on top suggests the stem was...
01-21-23, 06:49 PM
Replies: 7
Views: 280
Posted By oldbobcat

Jeez, how did we ever fit ourselves before power...

Jeez, how did we ever fit ourselves before power meters? Maybe your saddle is crooked, bent, or too high, maybe your hip alignment is crooked, maybe one leg is shorter than the other, maybe your...
01-21-23, 06:42 PM
Replies: 16
Views: 375
Posted By oldbobcat

Have you ever consulted with an orthopedist or...

Have you ever consulted with an orthopedist or podiatrist about your gait? It does sound rather extreme.
01-21-23, 06:34 PM
Replies: 19
Views: 467
Posted By oldbobcat

After two replacement hoses, countless...

After two replacement hoses, countless replacement head washers, and 50 years of service, I replaced mine with an orange one by Serfas. The gauge stopped working after a couple years. They replaced...
01-21-23, 06:30 PM
Replies: 69
Views: 2,179
Posted By oldbobcat

Personally, the spoke protector is the second...

Personally, the spoke protector is the second thing I remove from my own new bike, after reflectors, especially the ones in the spokes. But if you elect to keep yours, fair enough. But if it does...
01-18-23, 04:11 PM
Replies: 21
Views: 486
Posted By oldbobcat

Good advice. But let me try to give you a crash...

Good advice. But let me try to give you a crash course to figuring it out for yourself.

Put the bike on a workstand
Assure yourself that the chain and cassette cogs aren't excessively worn....
01-17-23, 08:50 PM
Replies: 16
Views: 375
Posted By oldbobcat

There's no rule that you have to mount them...

There's no rule that you have to mount them straight. Simply twist the cleat, front toward the inside, and move the cleat to the inside of the sole so your ankle clears the crank. This should work,...
01-16-23, 12:31 PM
Replies: 20
Views: 1,077
Posted By oldbobcat

Likewise for handlebar reach and cleat placement....

Likewise for handlebar reach and cleat placement. The frame, saddle, stem, and handlebar are a significant investment. Most riders can suss out the other issues after they buy the bike.
01-14-23, 09:44 PM
Replies: 7
Views: 341
Posted By oldbobcat

It might be that changing the back angle was...

It might be that changing the back angle was calling into play muscles your body hadn't had the time to learn to use. There's a acclimatization period that goes with any change in posture.
01-13-23, 08:00 PM
Replies: 17
Views: 435
Posted By oldbobcat

Some pigments just go "chalky" when they get old...

Some pigments just go "chalky" when they get old and weathered, for example, 40 year-old red Corvettes left out in the sun. Buff it out with a nice auto wax.
01-13-23, 12:55 AM
Replies: 5
Views: 158
Posted By oldbobcat

This video from SRAM says if you are putting an...

This video from SRAM says if you are putting an XD cassette on an XDR driver, you need a 1.85 mm shim. https://www.sram.com/en/service/articles/sram-xd-and-xdr-driver-body-explained
01-12-23, 11:26 PM
Replies: 37
Views: 784
Posted By oldbobcat

Point well taken. Thanks. I was out of the...

Point well taken. Thanks. I was out of the equipment loop as 8-speed was coming around, and relying on what the guys I worked with were telling me ten years after the fact.
01-12-23, 06:02 PM
Replies: 10
Views: 269
Posted By oldbobcat

I know. Most builders have a headset spec in mind...

I know. Most builders have a headset spec in mind before they start cutting and welding metal.
01-12-23, 05:55 PM
Replies: 37
Views: 784
Posted By oldbobcat

Any freewheel hub with 130mm spacing is an...

Any freewheel hub with 130mm spacing is an 8-speed freewheel hub. While there were other cassette designs in the '70s that never got a following, (Cinelli had one), Shimano led the way to the...
01-12-23, 12:13 PM
Replies: 5
Views: 158
Posted By oldbobcat

Are you saying the cassette slides back and forth...

Are you saying the cassette slides back and forth on the body after tightening down the lock ring? If this is the case, there's probably a missing shim somewhere. Check the owner's manual.
01-12-23, 12:06 PM
Replies: 37
Views: 784
Posted By oldbobcat

The reason 8-speed freewheels were uncommon was...

The reason 8-speed freewheels were uncommon was that the 130 mm axles broke, so the companies that made them shifted their efforts to freehubs.

130 mm freewheel hubs unfortunately still exist on...
01-12-23, 11:54 AM
Replies: 10
Views: 269
Posted By oldbobcat

Ask the guy who built it. Surely he must know.

Ask the guy who built it. Surely he must know.
01-11-23, 05:56 PM
Replies: 69
Views: 2,179
Posted By oldbobcat

Seriously?

Seriously?
01-08-23, 08:45 PM
Replies: 29
Views: 892
Posted By oldbobcat

And getting a top bearing with a 1-1/8" ID and an...

And getting a top bearing with a 1-1/8" ID and an OD and bevel that matches the head tube on the giant. And would cost $300-400 for the privilege of such a fishing expedition.
01-05-23, 08:58 PM
Replies: 6
Views: 304
Posted By oldbobcat

There's nothing wrong with the green grease on...

There's nothing wrong with the green grease on the spindle or on the inner bearing sleeve. It's mainly for preventing corrosion and facilitating disassembly. The spindle should turn the bearing, not...
01-04-23, 12:39 PM
Replies: 32
Views: 611
Posted By oldbobcat

Look at it this way. If you don't straighten it,...

Look at it this way. If you don't straighten it, it will just go on destroying rear hubs.
01-03-23, 03:50 PM
Replies: 9
Views: 337
Posted By oldbobcat

There is, but not without the spec sheet for a 25...

There is, but not without the spec sheet for a 25 year-old crank.
01-01-23, 04:14 PM
Replies: 12
Views: 250
Posted By oldbobcat

J&B Importers lists a 22 x 1.75 tire with a 457...

J&B Importers lists a 22 x 1.75 tire with a 457 mm ISO diameter, branded Sunlite Urban and currently out of stock. You could check for availability with your local bike shop that would have a JBI...
12-31-22, 04:23 PM
Replies: 2
Views: 103
Posted By oldbobcat

Try this with thin plastic cable liner. Your...

Try this with thin plastic cable liner. Your local shop should have some. Thread it into the top tube starting at the stuck ferrule and fish it through the other side. A spoke head makes a good...
12-31-22, 12:23 AM
Replies: 131
Views: 4,533
Posted By oldbobcat

Take another bag of blood.

Take another bag of blood.
12-31-22, 12:13 AM
Replies: 22
Views: 464
Posted By oldbobcat

For every rear derailleur I worked on, loosening...

For every rear derailleur I worked on, loosening the B-screw is how you get the jockey wheel closer to the cogs. Are you using the same cassette?

As for chain length, I've found that shorter...
12-30-22, 02:08 PM
Replies: 9
Views: 337
Posted By oldbobcat

Not using a bottom bracket with a 115 or 118 mm...

Not using a bottom bracket with a 115 or 118 mm spindle? I don't have the specs on your crank, but you can eyeball with the113 to see two more millimeters will clear the chainstay, and you can...
12-29-22, 06:41 PM
Replies: 11
Views: 247
Posted By oldbobcat

That's a freewheel, not a cassette. Aside from...

That's a freewheel, not a cassette. Aside from being filthy and rusty, and a bit of excess wear on the 14t cog. Clean it with solvent and drip some thin oil between the moving parts so it spins with...
12-24-22, 11:25 AM
Replies: 11
Views: 552
Posted By oldbobcat

With close-ratio road cassettes with double or...

With close-ratio road cassettes with double or triple chainrings, the first cog makes sense. But when you get to wide-ratio 1x cassettes, you have to see that the jockey pulley clears the next larger...
12-24-22, 11:12 AM
Replies: 85
Views: 3,696
Posted By oldbobcat

I think I'd prefer drowning at sea to getting...

I think I'd prefer drowning at sea to getting smashed on the road. But your point is well taken.
12-23-22, 02:41 PM
Replies: 131
Views: 4,533
Posted By oldbobcat

Battery-assist or not is not a binary question....

Battery-assist or not is not a binary question. Those who want the exercise, or don't see the point, or have to carry their bikes up two flights of stairs will continue to ride non-powered bicycles.
12-23-22, 02:27 PM
Replies: 7
Views: 275
Posted By oldbobcat

Anything that fits in the hole in the bracket,...

Anything that fits in the hole in the bracket, with a washer and a nylock nut. Your local hardware dealer will appreciate the business.
12-22-22, 11:07 AM
Replies: 22
Views: 528
Posted By oldbobcat

You might want to move your cleats back a bit and...

You might want to move your cleats back a bit and lower the saddle a couple millimeters to compensate. You might be riding toes-down to because the saddle is too high, to shorten the force arm of...
Showing results 1 to 50 of 1000
 


 
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