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Search: Posts Made By: Bike Gremlin
Showing results 1 to 35 of 35
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10-07-19, 09:01 PM
Replies: 20
Views: 634
Posted By Andrew R Stewart

I don't think you will find one kit/tool that...

I don't think you will find one kit/tool that does all.If for no other reason that making stuff has the need to sell and making tools for very small batch manufactures that will change designs as...
09-26-19, 10:19 AM
Replies: 30
Views: 1,476
Posted By ThermionicScott

As with all things Jobst Brandt, we need to be...

As with all things Jobst Brandt, we need to be clear about what we're discussing/arguing. JB did not feel that plucking spokes was a good way to determine their absolute tension (a tensiometer is...
09-25-19, 05:14 AM
Replies: 38
Views: 2,923
Posted By sweeks

We should also recognize a debt of gratitude to...

We should also recognize a debt of gratitude to Sheldon's wife, Harriet Fell, and his close friend John Allen, for keeping the site going!
09-05-19, 01:44 PM
Replies: 4
Views: 284
Posted By dsaul

All 1 1/8" forks use the same crown race...

All 1 1/8" forks use the same crown race measurement of 30.015mm(nominal). You can order any 1 1/8" threadless headset and it will work with the fork. The frame is a different story, because the...
09-05-19, 01:09 PM
Replies: 4
Views: 284
Posted By CliffordK

100mm is standard for all modern quick release...

100mm is standard for all modern quick release fronts, with the exception of a couple of folding bikes.

I'm not quite sure what you mean by:


The crown race may well transfer over, but if you...
09-03-19, 02:44 PM
Replies: 94
Views: 4,573
Posted By ThermionicScott

Jobst would probably object to being associated...

Jobst would probably object to being associated with "extreme" tensions like 180kgf+. His book is clear that he only recommended this procedure for lightweight (420g or so) box-section rims, and that...
08-21-19, 03:50 PM
Replies: 25
Views: 1,484
Posted By noglider

A truing stand is one of the least essential bike...

A truing stand is one of the least essential bike tools. I do happen to have one, but sometimes I just put a zip tie on the frame or fork. I use it as a gauge to see how close/far the rim is from the...
08-15-19, 06:20 PM
Replies: 49
Views: 3,759
Posted By Mad Honk

Looky here now ksryder, As an ancient...

Looky here now ksryder,
As an ancient mechanic and one who still has all the stuff to work on them they aren't that bad. The difference is that the weak part is not the aluminium arm but the...
08-13-19, 07:38 PM
Replies: 49
Views: 3,759
Posted By HTupolev

The crank arm "walks up" the taper with every...

The crank arm "walks up" the taper with every installation, even if it was torqued properly. This is a form of long-term wear for square-taper cranks. But, it typically takes a very large number of...
08-10-19, 05:01 PM
Replies: 49
Views: 3,759
Posted By ThermionicScott

If by "track" you mean keirin, consider that it...

If by "track" you mean keirin, consider that it is the NASCAR of the competitive cycling world. ;)
08-08-19, 06:13 AM
Replies: 53
Views: 3,199
Posted By eddy m

A dish stick is easier to use than flipping the...

A dish stick is easier to use than flipping the wheel, and unless you have a rigid stand with a good flat surface to measure from, it's more accurate too. Any small difference in the way the wheel...
07-27-19, 04:33 PM
Replies: 27
Views: 1,307
Posted By sdmc530

When i was looking into getting mine cut I walked...

When i was looking into getting mine cut I walked into the shop forks in hand marked. All they had to do is put in jig and cut away. For $10 I would have said go ahead but for 20$ was just too...
07-23-19, 12:38 PM
Replies: 27
Views: 1,307
Posted By WizardOfBoz

This is very interesting. I know that you can cut...

This is very interesting. I know that you can cut aluminum stock with woodworking tools like a miter saw, provided you have a tungsten carbide saw blade (and ideally, if you use WD40 or some other...
07-23-19, 10:46 AM
Replies: 27
Views: 1,307
Posted By WizardOfBoz

The guide Timothy cites is useful, but please...

The guide Timothy cites is useful, but please note that when you get to thin material, it's the material thickness that determines optimal tooth count. The span of the tooth must be less than the...
07-23-19, 09:06 AM
Replies: 27
Views: 1,307
Posted By TimothyH

Use the appropriate blade for the material. 18 to...

Use the appropriate blade for the material. 18 to 24 teeth is probably right for CroMo. A finer blade should be used for crabon.

https://diyhousehelp.com/hacksaw-blade-guide

I use the guide...
07-19-19, 01:47 AM
Replies: 45
Views: 3,086
Posted By Retro Grouch

Negative utility. It's actually possible for...

Negative utility.

It's actually possible for something to be worth less than nothing. In this case the University has 500 bicycles that they have no use for and the bikes are taking up storage...
07-18-19, 07:49 PM
Replies: 45
Views: 3,086
Posted By 3alarmer

...when I worked for the co-op here, for a few...

...when I worked for the co-op here, for a few years I was the guy in charge of managing "donations". So I have some resaonable idea of what might be involved in accepting this number of bikes in...
07-18-19, 07:28 PM
Replies: 45
Views: 3,086
Posted By Andrew R Stewart

More then a few minutes, times 500. Then there's...

More then a few minutes, times 500. Then there's the time, effort and gas cost to transport 500 (minus a few I suppose) heaps to the recycling center and whatever they didn't accept then to the...
07-17-19, 10:44 AM
Replies: 43
Views: 2,457
Posted By CliffordK

:foo: Hills... New Derailleur... Broken...

:foo:
Hills... New Derailleur... Broken derailleur + hanger + rear-end & damaged SEAT stay.
:foo:

I think we're focusing too much on the re-straightened hanger.

DOS, what is the condition...
07-17-19, 10:32 AM
Replies: 43
Views: 2,457
Posted By CliffordK

The point is that it is supposed to be the "weak...

The point is that it is supposed to be the "weak link".

And, as you suggest, it should fail before taking out the whole rear end of the bike (although that leaves the derailleur hanging loose).
...
07-17-19, 10:06 AM
Replies: 43
Views: 2,457
Posted By Wilfred Laurier

You seem to be missing the point of replaceable...

You seem to be missing the point of replaceable derailleur hangers - they are supposed to be the weak link in the chain so they fail before anything else does in the case of an impact. If an OEM one...
07-16-19, 10:24 PM
Replies: 26
Views: 1,221
Posted By ThermionicScott

PFFTT! Standing to climb is fun and it's a...

PFFTT!

Standing to climb is fun and it's a great workout. No harder on your knees than walking up stairs.

If your bike can't stay in gear, get it fixed.
07-16-19, 10:20 PM
Replies: 43
Views: 2,457
Posted By Last ride 76

ironic some of the stuff in this thread. Even...

ironic some of the stuff in this thread. Even after the update. Sound like a decent LBS, that did something not exactly uncommon, which seems to have had a bad outcome. and is willing, (probably for...
07-16-19, 10:30 AM
Replies: 23
Views: 1,163
Posted By DiabloScott

Aluminum nipples are fine and nice if you're...

Aluminum nipples are fine and nice if you're building lightweight wheels that won't see corrosive wet service.
Brass will last much longer if you ride in the rain or slop.

As to your case, if the...
07-16-19, 10:13 AM
Replies: 23
Views: 1,163
Posted By HillRider

Brass and steel are obvious. "Alloy" means...

Brass and steel are obvious. "Alloy" means aluminum alloy and it was probably the material the ruined nipples were made of since salt corrodes aluminum badly.

Brass nipples are most commonly used...
07-16-19, 06:02 AM
Replies: 43
Views: 2,457
Posted By Marcus_Ti

So? They don't have everything. And the further...

So? They don't have everything. And the further back you go, the more hit-miss it is. Same as OEMs. Their cut off line seems to generally be about 2010-2011.

For example my 2002 BMW blue...
Forum: Commuting
07-11-19, 09:34 AM
Replies: 15
Views: 2,750
Posted By Phil_gretz

An ounce of prevention is better than a pound of...

An ounce of prevention is better than a pound of cure. So they say. It's funny how we have different personalities expressed on this issue.

I do corrective or preventative maintenance on...
07-10-19, 09:07 AM
Replies: 17
Views: 1,261
Posted By Phil_gretz

Put me down squarely in the camp of those who...

Put me down squarely in the camp of those who would not use that skewer. I'd replace with a Shimano skewer at the first opportunity. You can find the latest Ultegra skewers inexpensively if you...
07-04-19, 11:38 PM
Replies: 71
Views: 4,163
Posted By ThermionicScott

You're correct that discs "push" and "pull" on...

You're correct that discs "push" and "pull" on the spokes in a way that rim brakes don't, but so do drum brakes. And rear wheels have done this since day one, due to drive torque. So thanks to 100+...
06-10-19, 01:27 PM
Replies: 21
Views: 1,584
Posted By Dan Burkhart

It's fine. The holes themselves are still round....

It's fine. The holes themselves are still round. The wear is where the spoke elbows seated into the countersink.However, your observation that they have been built up more than once is correct I...
05-21-19, 09:14 PM
Replies: 3
Views: 264
Posted By bluehills3149

This is the parts diagram from Campy 2006 and its...

This is the parts diagram from Campy 2006 and its part number EC-MI228 indicates it is the same as the Mirage(and I have a 9spd Mirage lever also with the broken lever). But I am almost sure any...
05-21-19, 07:01 AM
Replies: 3
Views: 264
Posted By Andrew R Stewart

What exactly is broken? If it's the lever and not...

What exactly is broken? If it's the lever and not the internals then this might be swappable. But the index gear, the cast metal part that has the specific notches for the gear count, won't be...
05-19-19, 07:32 PM
Replies: 10
Views: 535
Posted By gfk_velo

It all depends on what you mean by making it work...

It all depends on what you mean by making it work and how well you expect it to work.

It also depends on how good a mechanic you are and whether you are willing and equipped to do things carefully...
05-03-19, 11:24 AM
Replies: 11
Views: 752
Posted By AnkleWork

Carbon fiber bike parts have limited life and are...

Carbon fiber bike parts have limited life and are disposable. That's a feature that costs extra.
04-14-13, 09:31 PM
Replies: 38
Views: 2,923
Posted By Erik_A

Thanks Sheldon Brown...

I was reading this article: http://hbr.org/2013/04/in-the-company-of-givers-and-takers/ which questions whether you are a "Giver" or a "Taker" at work. I immediately though of the late, GREAT...
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