Search: Posts Made By: andrewclaus
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10-21-18, 01:24 PM
Replies: 5
Views: 131
Posted By andrewclaus

If you have an old quill stem which uses a wedge...

If you have an old quill stem which uses a wedge at the end of a long bolt, and you're removing the bolt, you're doing it wrong. Look up "quill stem" and let us know if that's what you have.
10-15-18, 05:41 PM
Replies: 16
Views: 497
Posted By andrewclaus

I haven't done it on a bike, but in auto and...

I haven't done it on a bike, but in auto and plumbing I've carefully cut the threads in one or more places then taken a cold chisel to it to break it loose. You may then need a shop to chase the...
10-14-18, 11:40 AM
Replies: 16
Views: 330
Posted By andrewclaus

This is the only time WD-40 gets near my bike. I...

This is the only time WD-40 gets near my bike. I used the same set of brifters for 22 years and every few years I had to rinse them out liberally. It'll make less of a mess if you can loosen both...
10-11-18, 12:14 PM
Replies: 16
Views: 304
Posted By andrewclaus

If you currently have a wheel with axle nuts and...

If you currently have a wheel with axle nuts and want to change to quick release, you'll need to replace the wheel. As mentioned above, you need a shorter, hollow axle. You might get lucky with an...
10-11-18, 06:13 AM
Replies: 60
Views: 1,545
Posted By andrewclaus

Exactly what's been discussed in this thread,...

Exactly what's been discussed in this thread, that no play and no binding is preferred in bearing adjustment, that a loose bearing puts more load on fewer balls and may cause bearing failure.

I'm...
10-10-18, 12:49 PM
Replies: 18
Views: 314
Posted By andrewclaus

Removing the cage and adding two more BBs will...

Removing the cage and adding two more BBs will give you a better bearing, but won't perceptibly decrease drag.

Can we assume the chain is not on, and you're not also measuring freehub friction?
...
10-10-18, 10:07 AM
Replies: 60
Views: 1,545
Posted By andrewclaus

As I see it, there are no units. I believe both...

As I see it, there are no units. I believe both axes are ratios, therefore unitless. See my post above.
10-10-18, 07:12 AM
Replies: 60
Views: 1,545
Posted By andrewclaus

Thanks for the graphic. I will use that for the...

Thanks for the graphic. I will use that for the more technically minded folks at the co-op. There are a few other recovering engineers volunteering there, and many of the customers are engineering...
10-08-18, 07:37 AM
Replies: 60
Views: 1,545
Posted By andrewclaus

Proper and complete elimination of play was...

Proper and complete elimination of play was recently explained to me by a pro in the shop where I volunteer. It makes complete sense and has changed the way I've adjusted bearings for the last 45...
10-08-18, 07:25 AM
Replies: 19
Views: 508
Posted By andrewclaus

Definitely do NOT do this. And I'll stress...

Definitely do NOT do this.

And I'll stress the comment about changing the brake levers to get the right pull for linear brakes. That seems to be a common oversight. Hopefully they're not combined...
10-08-18, 07:16 AM
Replies: 17
Views: 392
Posted By andrewclaus

I assume you mean you set the high limit screw...

I assume you mean you set the high limit screw first. (It tends to be confusing because low gear is "higher" on the cassette.) Check the low limit when you're done with cable adjustment.

I agree...
10-03-18, 06:11 AM
Replies: 10
Views: 366
Posted By andrewclaus

There's possibly a frayed shifter cable jammed in...

There's possibly a frayed shifter cable jammed in there. Or some foreign object.

Taking these things apart is tricky. Kind of like tearing into a small clock. I usually don't try unless it's a...
10-01-18, 06:47 AM
Replies: 13
Views: 337
Posted By andrewclaus

Ditto--forget about the numbers if it fits right....

Ditto--forget about the numbers if it fits right. The proof of the pudding....

At the co-op, we volunteers measure and sort posts, and the actual measurements we come up with are often off by 0.1...
09-30-18, 07:19 PM
Replies: 25
Views: 559
Posted By andrewclaus

Ditto volunteering at a co-op or non-profit.

Ditto volunteering at a co-op or non-profit.
09-30-18, 07:11 PM
Replies: 9
Views: 426
Posted By andrewclaus

Get a set of combination wrenches, Allen...

Get a set of combination wrenches, Allen wrenches, sockets (all metric), basic screwdrivers, adjustable wrenches (8" and 12"), cable cutter anywhere. Bike specific tools will be 13 mm and 15 mm cone...
09-30-18, 06:06 AM
Replies: 3
Views: 159
Posted By andrewclaus

I use a "pickle fork" (automotive ball joint...

I use a "pickle fork" (automotive ball joint remover) for square tapered crank arm removal. After a drop or two of penetrating oil.
09-30-18, 05:59 AM
Replies: 12
Views: 400
Posted By andrewclaus

Line up a crank with the seat tube. Grab the...

Line up a crank with the seat tube. Grab the crank with one hand and the seat tube with the other. Try pushing them together and pulling them apart. There should be no noticeable play. Squeeze hard...
09-29-18, 05:33 PM
Replies: 7
Views: 182
Posted By andrewclaus

That's why I volunteer there. I can't believe...

That's why I volunteer there. I can't believe they let me work there for free.
09-29-18, 04:30 AM
Replies: 22
Views: 491
Posted By andrewclaus

Your digression is most interesting and I'll take...

Your digression is most interesting and I'll take it a little farther. Kilby's invention of the IC had a huge effect on virtually the entire planet. The first commercial application, the transistor...
09-29-18, 04:18 AM
Replies: 7
Views: 182
Posted By andrewclaus

Yes, there are standards. Most road levers and...

Yes, there are standards. Most road levers and old MTB levers for cantis pull 7 mm of cable for 20 degrees of lever operation. Levers for linear pull (V-brakes) pull 15 mm of cable.

(For flat bar...
09-28-18, 05:28 AM
Replies: 5
Views: 217
Posted By andrewclaus

I've done it and it worked fine for me.

I've done it and it worked fine for me.
09-27-18, 12:43 PM
Replies: 11
Views: 318
Posted By andrewclaus

I volunteer with a build-a-bike program at a...

I volunteer with a build-a-bike program at a co-op and often coach new mechanics on how to tune derailleurs. Some get it right away, some never do. I never thought that some might be whisperers. I...
09-27-18, 09:24 AM
Replies: 12
Views: 221
Posted By andrewclaus

Road brake levers traditionally have 7 mm pull,...

Road brake levers traditionally have 7 mm pull, MTB (linear pull) levers have a 15 mm pull (for 20 degree of lever). These are from memory and may not be exact.
09-27-18, 05:52 AM
Replies: 12
Views: 221
Posted By andrewclaus

Here's...

Here's (https://skyaboveus.com/cycling/Bicycle-Hack-Use-MTB-Mechanical-Disc-Brakes-With-Road-Brifters) a hack. I wouldn't do it and the author put in some disclaimers.
Forum: Touring
09-21-18, 06:11 AM
Replies: 29
Views: 1,114
Posted By andrewclaus

I've seen the fork idea before, in that case the...

I've seen the fork idea before, in that case the cyclist used 1.5 L soda bottles.

Carrying so many small, heavy bottles is a reliable way to carry water, but not the most weight-efficient....
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