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Search: Posts Made By: oldbobcat
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09-27-21, 08:54 PM
Replies: 10
Views: 539
Posted By oldbobcat

After verifying that the alignment is correct,...

After verifying that the alignment is correct, try loosening the high limit screw a bit, like an eighth to a quarter turn. This will allow the chain to drop down with more gusto. It won't be enough...
08-30-21, 11:07 AM
Replies: 14
Views: 544
Posted By oldbobcat

I'd use it. Around 45 years ago I bought a cheap...

I'd use it. Around 45 years ago I bought a cheap truing stand from my local shop. I put a pair of the owner's shop-built wheels in the stand to test it, and figured I could use it to build better...
08-29-21, 01:30 PM
Replies: 13
Views: 581
Posted By oldbobcat

[QUOTE=wesmamyke;22204785]The OP is probably not...

[QUOTE=wesmamyke;22204785]The OP is probably not imagining things. Fisher, Klein, Fat chance and some others used press fit bearings with square taper spindles. The spindles are straight and held in...
08-28-21, 11:28 AM
Replies: 5
Views: 356
Posted By oldbobcat

Start with a local Specialized dealer....

Start with a local Specialized dealer. Manufacturers want customers to work with authorized dealers, not unauthorized third parties. If a Specialized dealer can't get a direct replacement. any bike...
08-28-21, 11:10 AM
Replies: 7
Views: 445
Posted By oldbobcat

If the bottom wedge directly contacts the steerer...

If the bottom wedge directly contacts the steerer like one of these,
https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulletin/950x950/image_332f734d2ec39068c614d10b48765fbea80d8757.png
0.2 mm should...
08-23-21, 10:40 PM
Replies: 5
Views: 301
Posted By oldbobcat

If it's the one bolt clamp, my hunch is something...

If it's the one bolt clamp, my hunch is something is bent, causing the clamp to bottom out or preventing the clamp from aligning with the rails. Remove the saddle, look for damage, and observe what...
08-23-21, 10:04 PM
Replies: 4
Views: 274
Posted By oldbobcat

The cone should have a lock nut that prevents it...

The cone should have a lock nut that prevents it from loosening or tightening. The idea is, tighten the cone to the tension that prevents wobble but doesn't bind or grind, and then tighten the lock...
08-23-21, 07:53 PM
Replies: 5
Views: 375
Posted By oldbobcat

Disconnect the cable from the derailleur. Pulling...

Disconnect the cable from the derailleur. Pulling on the cable end with one hand, shift through the gears with the other. If you get the requisite number of clicks (number of cogs minus one, since...
08-23-21, 07:44 PM
Replies: 12
Views: 2,639
Posted By oldbobcat

Generally, the alloy used for racks is...

Generally, the alloy used for racks is considerably milder than what's used for frames and other applications that require high strength to weight (like ski poles). Work slowly and aim for...
08-18-21, 09:33 PM
Replies: 38
Views: 1,334
Posted By oldbobcat

So how you do you resolve the Ultegra pull ratio...

So how you do you resolve the Ultegra pull ratio of 1.7:1 to SRAM's 1:1? Or were we supposed to source a Tiagra 4600 lever, too?

And, by the way, 6600, 6700, and 4600 are just as difficult to come...
08-18-21, 10:47 AM
Replies: 38
Views: 1,334
Posted By oldbobcat

Even stupid routine stuff like sealed...

Even stupid routine stuff like sealed square-taper bottom brackets. And 25mm road tires.
06-23-21, 06:45 PM
Replies: 6
Views: 369
Posted By oldbobcat

The longer chain might give a little less than...

The longer chain might give a little less than optimal shifting performance on the lower gears because of increased distance between the jockey pulley and the cogs. Loosening the B-screw a little for...
06-06-21, 02:22 PM
Replies: 17
Views: 844
Posted By oldbobcat

There are companies who specialize in...

There are companies who specialize in replacements for old bikes, like Origin8 and SunRace, and companies who maintain a somewhat solid legacy line, like FSA and Tektro, and companies whose service...
06-05-21, 04:34 PM
Replies: 28
Views: 1,204
Posted By oldbobcat

It's a Townie, for cryin' out loud. The demands...

It's a Townie, for cryin' out loud. The demands on its rear derailleur are slight. Don't overthink this.
06-03-21, 06:04 PM
Replies: 17
Views: 554
Posted By oldbobcat

Depends on what you did. If it's a mountain...

Depends on what you did.

If it's a mountain bike with triple chainrings, or a road bike with triple rings and a wide-range rear cluster, chances are you did nothing wrong. These drivetrains just...
06-03-21, 12:42 PM
Replies: 17
Views: 844
Posted By oldbobcat

I know.

I know.
06-01-21, 09:21 AM
Replies: 4
Views: 446
Posted By oldbobcat

No. Well, maybe if you plan on using the 5700 STI...

No. Well, maybe if you plan on using the 5700 STI lever. But the pull rates on 5700 and 5800 are very different.
05-30-21, 10:25 PM
Replies: 65
Views: 2,321
Posted By oldbobcat

Banded bolt-on disc brake mounts will never...

Banded bolt-on disc brake mounts will never withstand the torque to stay in alignment with the rotors. And then there's the problem of rotor-less wheels.

So why are we advising on a project that...
05-21-21, 11:43 AM
Replies: 19
Views: 949
Posted By oldbobcat

Had this on my Madone a few years ago. After...

Had this on my Madone a few years ago. After eliminating the pedals, the bottom bracket, chain, and the rear hub as possible sources, someone suggested tightening the rear QR skewer. That did it.
05-21-21, 11:38 AM
Replies: 7
Views: 564
Posted By oldbobcat

Raising the front of the bike reduces the head...

Raising the front of the bike reduces the head angle, while the fork offset remains the same. This will increase trail, the distance between the intersect of the steering axis with the ground and the...
05-17-21, 08:33 PM
Replies: 19
Views: 1,311
Posted By oldbobcat

Cobb Cycling also has 5mm top caps....

Cobb Cycling also has 5mm top caps. https://speedandcomfort.com/collections/top-caps
05-17-21, 08:14 PM
Replies: 141
Views: 7,582
Posted By oldbobcat

Listen to your wife.

Listen to your wife.
05-07-21, 11:44 AM
Replies: 15
Views: 758
Posted By oldbobcat

Many disc brakes have an integral cable adjuster.

Many disc brakes have an integral cable adjuster.
05-07-21, 11:41 AM
Replies: 11
Views: 844
Posted By oldbobcat

There is. I tried setting up my Ksyrium SLs for...

There is. I tried setting up my Ksyrium SLs for tubeless and the beads would not lock. Glad I gave up before filling the tire with sealant.

The lesson is, if you don't know for sure, tape the rim....
05-05-21, 11:00 PM
Replies: 11
Views: 954
Posted By oldbobcat

That's in 11-34t only. Evidently the size of the...

That's in 11-34t only. Evidently the size of the cog #1 allows it to hang over the hub flange and/or spoke heads and still keep the rear derailleur out of the spokes.
05-01-21, 11:43 AM
Replies: 15
Views: 659
Posted By oldbobcat

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/606x640/s_l640_bfc25860ef3c3c79f093d2422df75e26ea5ce48f.jpg
Squealing is caused by vibration, After ensuring that your headset is properly...
04-30-21, 05:14 PM
Replies: 23
Views: 938
Posted By oldbobcat

Because not all tires and rims are made to go...

Because not all tires and rims are made to go tubeless.

All leaks are not created equal. The sealant makes no promises. It is just a sealant.
04-30-21, 05:08 PM
Replies: 17
Views: 930
Posted By oldbobcat

Bolt in a couple pieces of angle iron and a...

Bolt in a couple pieces of angle iron and a bushing and make it a hardtail. It might even handle better in corners that way.
04-26-21, 10:16 PM
Replies: 5
Views: 428
Posted By oldbobcat

Usually indicative of a hole somewhere. I've...

Usually indicative of a hole somewhere. I've either found it or fixed by adding a little sealant, inflating the tire, and flipping, bouncing, rotating the wheel to determine where the sealant was...
04-24-21, 10:49 AM
Replies: 34
Views: 1,329
Posted By oldbobcat

Go at it from the other side. Remove the...

Go at it from the other side. Remove the non-drive-side nut and cone and pull it out from the drive side.
04-24-21, 10:39 AM
Replies: 21
Views: 964
Posted By oldbobcat

If used according to the manufacturer's...

If used according to the manufacturer's instructions. Don't mount them above four centimeters of stem spacers, don't stack them, and don't install them on carbon steerers.
04-23-21, 08:57 AM
Replies: 21
Views: 964
Posted By oldbobcat

Before going out an purchasing riser handlebars...

Before going out an purchasing riser handlebars and stem, try sliding your saddle back a centimeter or so. This moves your center of gravity away from the arms and shoulders and toward your hips and...
04-18-21, 02:52 PM
Replies: 2
Views: 308
Posted By oldbobcat

No, the longer arm of the 4700 was designed to...

No, the longer arm of the 4700 was designed to emulate the pull of the 11-speed systems. 4600 is compatible with Shimano's 5700, 6700, 7800, 5600, 6600, and 7600. And Shimano seems to be still making...
04-18-21, 02:15 PM
Replies: 17
Views: 930
Posted By oldbobcat

Seat post, hell. It looks like the sag alone...

Seat post, hell. It looks like the sag alone would crash the upper link into the truncated seat tube. Unless the linkage is split up there, so the seat tube passes between the arms.

Equipment like...
04-18-21, 09:45 AM
Replies: 45
Views: 1,542
Posted By oldbobcat

Yes, but the rim, being rigid, doesn't compress,...

Yes, but the rim, being rigid, doesn't compress, so the force is vectored. Another reason not to overthink it.
04-17-21, 10:47 PM
Replies: 45
Views: 1,542
Posted By oldbobcat

When you apply forward pressure to the cranks,...

When you apply forward pressure to the cranks, the chainring pulls the chain. The chain pulls the rear wheel cog. The cog pulls the hub flange. The hub flange pulls on the spoke. The spoke pulls on...
04-17-21, 09:45 PM
Replies: 16
Views: 944
Posted By oldbobcat

I understand your need, having overhauled pedals...

I understand your need, having overhauled pedals by Lyotard and Campagnolo. It's tight in there. So I will make a suggestion instead of criticizing your request. Have you tried entering "thin wall...
04-17-21, 09:25 PM
Replies: 14
Views: 796
Posted By oldbobcat

Phil Wood makes cartridge bottom brackets that...

Phil Wood makes cartridge bottom brackets that are held in place with lock rings that thread inside the shell, allowing the mechanic to make small adjustments to the chainline....
04-16-21, 09:29 PM
Replies: 14
Views: 894
Posted By oldbobcat

Your assignment: Measure the length of the...

Your assignment:

Measure the length of the hub axle between the end nuts
Measure the distance between the two rear dropouts
Report the difference to this forum.
04-15-21, 10:01 PM
Replies: 3
Views: 380
Posted By oldbobcat

My general guide for derailleur trouble shooting...

My general guide for derailleur trouble shooting goes like this. First disconnect the cable. Test the spring by pushing on the derailleur with your hand. If it pushes back, it's not the spring....
04-12-21, 11:30 PM
Replies: 5
Views: 429
Posted By oldbobcat

I checked on compatibility. Found this....

I checked on compatibility. Found this. https://bike.shimano.com/en-US/information/news/gravel-upgrades--mixing-and-matching-shimano-grx-and-road-compon.html . Compatibility is not a problem.

I...
04-12-21, 06:12 PM
Replies: 8
Views: 537
Posted By oldbobcat

Don't you have any friends or bike shops that...

Don't you have any friends or bike shops that could test ride the bike or check it out?

And regarding the stem, a longer stem isn't going to fix the handling if it's too long for your reach. An 11...
04-10-21, 05:20 PM
Replies: 22
Views: 983
Posted By oldbobcat

Ah, 9-speed triple chainrings with a 5-arm 130 mm...

Ah, 9-speed triple chainrings with a 5-arm 130 mm BCD spider. The only triple road crankset by Shimano that fits that description is Sora CG3030, and I haven't been able to find the chainset or the...
04-09-21, 08:19 AM
Replies: 21
Views: 882
Posted By oldbobcat

On the other hand, the benefits of putting a lot...

On the other hand, the benefits of putting a lot of money into upgrading a 19 year-old bike are, erm, arguable.
04-07-21, 09:16 AM
Replies: 9
Views: 959
Posted By oldbobcat

An FX-quality freewheel costs about $35. What...

An FX-quality freewheel costs about $35. What appears to have happened is a broken axle in the hub. That usually happens because the drive-side locknut loosens, causing the drive-side cone to loosen,...
04-06-21, 09:16 AM
Replies: 13
Views: 652
Posted By oldbobcat

Your local bike shop.

Your local bike shop.
04-03-21, 09:40 AM
Replies: 6
Views: 425
Posted By oldbobcat

Is this fork for threaded or non-threaded...

Is this fork for threaded or non-threaded headsets? Does this extender clamp to the inside or the outside of the steerer tube? Or do you know?
04-03-21, 09:37 AM
Replies: 19
Views: 882
Posted By oldbobcat

Every bike shop I've worked for has done free...

Every bike shop I've worked for has done free collision damage estimates. They have tools and techniques for determining frame alignment, and a shop estimate gives authority to your negotiations with...
04-01-21, 07:56 PM
Replies: 7
Views: 483
Posted By oldbobcat

GXP (the spindle interface) and BSA (the...

GXP (the spindle interface) and BSA (the threading) are all you need to know. The spacers are for resolving chainline discrepancies, usually on mountain bikes that have a variety of rear axle...
04-01-21, 07:36 PM
Replies: 21
Views: 1,408
Posted By oldbobcat

Quality Bike Parts, a very large general...

Quality Bike Parts, a very large general wholesaler of bike components and accessories. They have warehouses across the US, Canada, Mexico, and South America. You need to have a brick-and-mortar bike...
Showing results 1 to 50 of 89
 


 
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