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Search: Posts Made By: laura*
Showing results 1 to 50 of 284
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Forum: Bicycle Mechanics
07-10-11, 12:20 AM
Replies: 9
Views: 576
Posted By laura*

Those specs are related to the bottom bracket. ...

Those specs are related to the bottom bracket.

It would not be unreasonable to install a new BB with a new crank, so there's no need to remain compatible with the old BB.
Forum: Bicycle Mechanics
07-09-11, 04:26 PM
Replies: 4
Views: 642
Posted By laura*

The end without the flange should pull (not...

The end without the flange should pull (not screw!) off.
Forum: Bicycle Mechanics
07-09-11, 12:22 AM
Replies: 9
Views: 1,328
Posted By laura*

In theory, front derailleurs are tuned to the...

In theory, front derailleurs are tuned to the width of the chain that they are meant for. Derailleurs for 6, 7, and 8 speeds will be a little bit wider than 9 speed, which in turn are wider than 10...
Forum: Bicycle Mechanics
07-09-11, 12:09 AM
Replies: 4
Views: 642
Posted By laura*

What do you mean "pulling apart"? ...

What do you mean "pulling apart"?



Sounds like the Sugino/RPM/??? cartridge - I think that's the only 103mm BB currently available. If so, there's a "sleeve" on the non drive side that's...
Forum: Bicycle Mechanics
07-08-11, 11:59 PM
Replies: 5
Views: 1,646
Posted By laura*

I just bought one of these BB's for a project....

I just bought one of these BB's for a project. The box had two instructions sheets in it. One has a outline drawing of a road bike on the "cover". The other has a drawing of a mountain bike. Other...
Forum: Bicycle Mechanics
07-03-11, 11:42 PM
Replies: 16
Views: 1,938
Posted By laura*

<redacted>

<redacted>
Forum: Bicycle Mechanics
07-03-11, 07:15 PM
Replies: 16
Views: 1,938
Posted By laura*

STX was renamed Deore in the transition to...

STX was renamed Deore in the transition to 9-speed. (There was no Deore-nosuffix in the '90's.) For example, the M510 Deore hubs use many of the same parts as STX.

STX-RC borrowed a lot of bits...
Forum: General Cycling Discussion
07-03-11, 06:36 PM
Replies: 14
Views: 3,902
Posted By laura*

The problem with Chinese bearings is that you...

The problem with Chinese bearings is that you can't trust that they meet any of their claimed specs.

I recently had a Chinese* cartridge bearing in a front hub fail in just 500 miles. It should...
Forum: General Cycling Discussion
07-02-11, 04:55 PM
Replies: 4
Views: 637
Posted By laura*

First, get the correct size cone wrench. I also...

First, get the correct size cone wrench. I also suggest a 6-point box wrench for the locknut, tough a 12-point box wrench would also work.

Put the wrenches on the cone and locknut such that...
Forum: Bicycle Mechanics
07-02-11, 12:04 AM
Replies: 2
Views: 483
Posted By laura*

A 42 tooth ring from a double does not need ramps...

A 42 tooth ring from a double does not need ramps and pins to lift the chain up from a smaller ring. A 42 tooth ring from a triple does need the ramps/pins.

And then further, sets of rings have...
Forum: Bicycle Mechanics
06-30-11, 12:38 PM
Replies: 3
Views: 2,637
Posted By laura*

Chin-Haur (Tiawan?) brand bottom bracket, 68mm...

Chin-Haur (Tiawan?) brand bottom bracket, 68mm shell width.



113.5mm spindle length



English threading
Forum: Bicycle Mechanics
06-29-11, 09:17 PM
Replies: 7
Views: 2,851
Posted By laura*

You don't need a bicycle specific torque wrench....

You don't need a bicycle specific torque wrench. A wrench meant for automotive and industrial use will be just as good, if not better. The only issue is that many bicycle fasteners use low torque...
Forum: Bicycle Mechanics
06-29-11, 11:59 AM
Replies: 30
Views: 2,253
Posted By laura*

There's really no need to "practice" with...

There's really no need to "practice" with materials other than what you'll eventually ride on.

There's also no requirement that rideable wheels be built in under an hour. You aren't auditioning...
Forum: Folding Bikes
06-25-11, 09:29 PM
Replies: 44
Views: 3,040
Posted By laura*

The small wheels of a folding bike spin up...

The small wheels of a folding bike spin up easier/faster and also spin down quicker. The smaller size means the wheels are lighter. The lower weight means less rotating momentum. Hence quicker speed...
Forum: Bicycle Mechanics
06-23-11, 10:37 PM
Replies: 28
Views: 13,405
Posted By laura*

"Literally 5 seconds" is all it takes to make...

"Literally 5 seconds" is all it takes to make sure you don't have some monster wide downhill MTB-type 29er rim.

The numbers on your original tires don't matter. The rim size is all that matters....
Forum: Bicycle Mechanics
06-23-11, 08:42 PM
Replies: 16
Views: 13,876
Posted By laura*

This may actually be a very appropriate bike to...

This may actually be a very appropriate bike to take college - nobody will want to steal it!

However, it will not be any good for "3 hour long bike trails". Neither will any bike you'll find at...
Forum: Classic & Vintage
06-23-11, 01:35 AM
Replies: 6
Views: 692
Posted By laura*

No need to shorten those axles - the OP wants a...

No need to shorten those axles - the OP wants a bolt on hub. Thus the extra length is needed.

I checked several old (early 90's) Shimano exploded views of nutted hubs. For 130mm spacing, Shimano...
Forum: Bicycle Mechanics
06-21-11, 05:52 PM
Replies: 7
Views: 763
Posted By laura*

Yes, Minnesota. (And now also Utah.) However,...

Yes, Minnesota. (And now also Utah.) However, these are not their own warehouses! Instead, they belong to QBP, which is a bike parts distributor that most LBS's order from. It appears that Universal...
Forum: Classic & Vintage
06-21-11, 05:39 PM
Replies: 26
Views: 1,986
Posted By laura*

I bet there's shipping damage - something bent...

I bet there's shipping damage - something bent the rear triangle off to one side.
Forum: Bicycle Mechanics
06-18-11, 09:21 PM
Replies: 15
Views: 2,935
Posted By laura*

No. With the wider range cassette, you now need...

No. With the wider range cassette, you now need the slack chain take up capacity of a mountain bike rear derailleur.
Forum: Bicycle Mechanics
06-18-11, 12:29 AM
Replies: 7
Views: 10,395
Posted By laura*

The tightening torque isn't the issue - repeated...

The tightening torque isn't the issue - repeated tightening is:

http://www.sheldonbrown.com/brandt/installing-cranks.html
Forum: Bicycle Mechanics
06-17-11, 07:06 PM
Replies: 7
Views: 10,395
Posted By laura*

Yes. As you pedal, the crank arms work their way...

Yes. As you pedal, the crank arms work their way even tighter onto the spindle. The result is looser bolts. If you keep retightening them, you might eventually split the crank arms.

If you don't...
Forum: Bicycle Mechanics
06-17-11, 01:47 PM
Replies: 7
Views: 12,228
Posted By laura*

A crown race of 30mm means a steerer of 1 1/8". A...

A crown race of 30mm means a steerer of 1 1/8". A crown race needs to be a little bit bigger than the steerer so that it can slide over the steerer.
Forum: Road Cycling
06-17-11, 12:47 AM
Replies: 57
Views: 2,667
Posted By laura*

In the second picture the OP posted, there are...

In the second picture the OP posted, there are two full size vans on the bridge - one of them at about the tallest point. I estimate about 12 vans heights from the water to the road surface. Assuming...
Forum: Bicycle Mechanics
06-17-11, 12:26 AM
Replies: 15
Views: 2,935
Posted By laura*

You mentioned Shimano 2300. Thus, you're bike...

You mentioned Shimano 2300. Thus, you're bike must be 8 speed with the 13-26 cassette. (BTW, there is no 13-25 8 speed cassette.)

Your LBS's mindset has moved on to 10 speeds. There are no 13-26...
Forum: Bicycle Mechanics
06-16-11, 08:13 PM
Replies: 8
Views: 672
Posted By laura*

1) Click the shifter to shift to the smallest...

1) Click the shifter to shift to the smallest cog. Pedal as needed to get the chain onto the smallest cog.
2) Loosen the cable from the rear derailleur.
3) Adjust the HIGH limit screw until the...
Forum: Bicycle Mechanics
06-16-11, 07:46 PM
Replies: 26
Views: 6,056
Posted By laura*

Turn the front wheel 90 degrees to the right, or...

Turn the front wheel 90 degrees to the right, or maybe even a little bit beyond. Then photograph the fork to downtube (or brake caliper to downtube) clearance.
Forum: Bicycle Mechanics
06-14-11, 02:27 PM
Replies: 2
Views: 406
Posted By laura*

You don't want to lock up the rear wheel. A...

You don't want to lock up the rear wheel. A locked rear wheel means a skidding rear wheel. A skidding rear wheel can easily start going sideways.



I doubt the XT calipers will make a...
Forum: Bicycle Mechanics
06-13-11, 06:54 AM
Replies: 6
Views: 818
Posted By laura*

Yes. It is called a used innertube. Use it to tie...

Yes. It is called a used innertube. Use it to tie the front wheel to the downtube.

Or better yet, don't flip your bike upside down to work on it!
Forum: Bicycle Mechanics
06-13-11, 06:52 AM
Replies: 10
Views: 1,948
Posted By laura*

I don't see anything distinctly wrong with the...

I don't see anything distinctly wrong with the crank in that picture. It would help if you post a picture of the problem area. And of the same area on the Walmart bike.
Forum: Bicycle Mechanics
06-13-11, 06:48 AM
Replies: 7
Views: 1,227
Posted By laura*

Is that threaded? If so, the mating part has a...

Is that threaded? If so, the mating part has a top half that looks like a crown race, and a bottom half that gets driven inside the head tube.
Forum: Bicycle Mechanics
06-12-11, 04:49 PM
Replies: 9
Views: 16,447
Posted By laura*

It looks like the cone, two spacers, and the lock...

It looks like the cone, two spacers, and the lock nut. Not uncommon for hubs of that vintage.



Um, yup! Actually, the axle protrusion on the hub looks to be on spec. However, the dropouts on...
Forum: Bicycle Mechanics
06-12-11, 04:42 PM
Replies: 15
Views: 4,513
Posted By laura*

OK. That's not technically a Cane Creek headset....

OK. That's not technically a Cane Creek headset. It is a VP Components headset designed with technology licensed from Cane Creek.

It is also an "integrated" headset and thus there are no cups to...
Forum: Bicycle Mechanics
06-12-11, 01:09 PM
Replies: 15
Views: 4,513
Posted By laura*

Which model Cane Creek headset is this? If the...

Which model Cane Creek headset is this? If the headset uses cups pressed into the head tube, who installed them?
Forum: Bicycle Mechanics
06-12-11, 12:38 AM
Replies: 16
Views: 1,711
Posted By laura*

Have you considered wheels built on the Deore LX...

Have you considered wheels built on the Deore LX Trekking hubs (FH-T660)? This groupset uses silver components, although they might be painted, not polished.
Forum: Bicycle Mechanics
06-11-11, 08:19 PM
Replies: 11
Views: 4,312
Posted By laura*

At this point I'm going to suggest getting a...

At this point I'm going to suggest getting a metal split ring and top cap. Perhaps you can get them from a defunct headset at a LBS. There are two different angles in common use for the wedge, so...
Forum: Bicycle Mechanics
06-11-11, 05:26 PM
Replies: 11
Views: 4,312
Posted By laura*

You can probably reuse the cups, crown race, and...

You can probably reuse the cups, crown race, and cartridges. And maybe even a few other parts. We just need to figure out which manufacturer's "standard" your headset is made to.

Take the stem off...
Forum: Bicycle Mechanics
06-11-11, 03:59 PM
Replies: 11
Views: 4,312
Posted By laura*

I don't think you actually broke this part. It...

I don't think you actually broke this part. It appears to be the "split ring" that centers the upper cartridge onto the steerer. In other words, it was made with a split in it. However, it seems to...
Forum: Classic & Vintage
06-09-11, 09:06 PM
Replies: 67
Views: 7,063
Posted By laura*

A few days ago I finally finished removing a...

A few days ago I finally finished removing a stuck seatpost by filing. The aluminum seatpost was stuck 8 inches deep into a steel Bridgestone frame. I mostly used a 12 inch long round file lubricated...
Forum: Classic & Vintage
06-09-11, 01:34 PM
Replies: 45
Views: 3,785
Posted By laura*

A carbon fiber, an aluminum, and a steel bike...

A carbon fiber, an aluminum, and a steel bike walk into a bar that they've never been to.

They claim an empty table for three that's in a prime position. As they do so, a few murmurs go through...
Forum: Bicycle Mechanics
06-09-11, 12:53 PM
Replies: 9
Views: 12,300
Posted By laura*

You need a Shimano 9 speed mountain RD. The new...

You need a Shimano 9 speed mountain RD. The new 10 speed RD's use different cable pulls.
Forum: Bicycle Mechanics
06-07-11, 09:40 PM
Replies: 8
Views: 6,069
Posted By laura*

Which type of BB? Tiagra has transitioned (quite...

Which type of BB? Tiagra has transitioned (quite recently!) from square taper (cartridges), to Octalink (cartridges), and finally to external bearings w/ a two piece crank design.
Forum: General Cycling Discussion
06-07-11, 08:33 PM
Replies: 9
Views: 656
Posted By laura*

The OP complained that the ride is a bit bumpy...

The OP complained that the ride is a bit bumpy and harsh. I'd suggest going to tires that are even bigger than what is on the bike currently. The beach cruiserish 26x2.25 Kenda Flame tires give a...
Forum: Bicycle Mechanics
06-06-11, 12:44 PM
Replies: 13
Views: 12,160
Posted By laura*

That's the common failure mode. The little "pawl"...

That's the common failure mode. The little "pawl" gets glued to it's pivot by the dried out grease. You need something stronger than WD40 to dissolve out the old grease. That's why I mentioned...
Forum: Bicycle Mechanics
06-06-11, 12:01 AM
Replies: 12
Views: 13,682
Posted By laura*

Another way: A hex bit in a 3/8 drive adapter....

Another way: A hex bit in a 3/8 drive adapter. Choose a "bit" that fits nicely into the star nut hole. It doesn't actually have to be a hex bit, it could Torx, Philips, or whatever. Then plug a 3/8...
Forum: Bicycle Mechanics
06-05-11, 11:49 PM
Replies: 5
Views: 512
Posted By laura*

As I mentioned in another thread, find a garage...

As I mentioned in another thread, find a garage sale, flea market, or scrap pile bicycle using components from this same brand.

It is not worth spending money to fix this bike. You should be able...
Forum: Bicycle Mechanics
06-05-11, 11:28 PM
Replies: 5
Views: 3,474
Posted By laura*

Translated: How many gears are on the cassette...

Translated: How many gears are on the cassette (or freewheel)? (I'm betting on six...)

UG == Uniglide
Forum: Bicycle Mechanics
06-05-11, 11:15 PM
Replies: 14
Views: 1,730
Posted By laura*

I reviewed this thread and just noticed that you...

I reviewed this thread and just noticed that you never told us whether you have a 1" or 1 1/8" OD steerer on this fork.

About plain spacers: It is quite OK to combine several spacers to get...
Forum: Bicycle Mechanics
06-04-11, 11:14 PM
Replies: 14
Views: 1,730
Posted By laura*

Something like this (except in a 1 inch version):...

Something like this (except in a 1 inch version):

http://www.universalcycles.com/shopping/product_details.php?id=10595&category=100

This locking headset spacer is meant for threadless...
Forum: Bicycle Mechanics
06-04-11, 06:07 PM
Replies: 13
Views: 12,160
Posted By laura*

Don't be afraid of taking them apart. The...

Don't be afraid of taking them apart. The internal guts of the shifter don't actually come apart. The trickiest part that you'll need to reassemble is the gear shift indicator.

Remove the shift...
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