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Search: Posts Made By: davidad
Showing results 1 to 48 of 48
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Forum: Bicycle Mechanics
10-02-23, 12:24 PM
Replies: 20
Views: 198
Posted By veganbikes

Kontact I don't think the OP was looking for a...

Kontact I don't think the OP was looking for a specific grease that makes up for pitted races and I think Andrew R Stewart was suggesting for folks to stop worrying about the grease used and focus on...
Forum: Bicycle Mechanics
10-01-23, 08:26 PM
Replies: 20
Views: 198
Posted By Andrew R Stewart

Talk about efficiency of different lubes is so...

Talk about efficiency of different lubes is so misplaced when the bearing tracks are pitted and worn out. Fix the base problem before wondering about grease thickness. And refresh/clean and grease...
Forum: Bicycle Mechanics
06-06-23, 07:30 AM
Replies: 18
Views: 469
Posted By pdlamb

This. Pick out your new (square taper) crank and...

This. Pick out your new (square taper) crank and find out what BB it needs, then buy the BB to match. Note some cranks may have a range -- choose the top end for a MTB or stout frame hybrid, and...
Forum: Bicycle Mechanics
06-04-23, 02:17 PM
Replies: 19
Views: 584
Posted By Andrew R Stewart

Which version? IIRC Saturae offered a few models....

Which version? IIRC Saturae offered a few models. One much like a Mavic Open Pro and another an aero shaped thing. All were pretty narrow in their internal widths.

At your weight I would suggest...
Forum: Bicycle Mechanics
05-18-23, 05:14 AM
Replies: 28
Views: 716
Posted By soyabean

There's a misunderstanding that "dry lube" is...

There's a misunderstanding that "dry lube" is like some sort of silicone/graphite that should appear invisible and always dry to the touch, this is not so.

"Dry" lubes are perhaps like 4 out of 10...
Forum: Bicycle Mechanics
04-21-23, 01:28 PM
Replies: 20
Views: 608
Posted By Crankycrank

I've had good luck just taking a cigarette...

I've had good luck just taking a cigarette lighter, gas stove flame or something similar to carefully get the patch hot and it will come off easily but sometimes you need to take it off in several...
Forum: Bicycle Mechanics
04-17-23, 08:16 AM
Replies: 17
Views: 427
Posted By HillRider

Your crank with the 74mm granny BCD will take...

Your crank with the 74mm granny BCD will take down to a 24T chainring and it is an easy and low cost change. I've done that on several 130/74 triple cranks and it works quite well. The shift from...
Forum: Bicycle Mechanics
04-05-23, 08:18 AM
Replies: 19
Views: 568
Posted By ClydeClydeson

Having overtight and massively imbalanced spokes...

Having overtight and massively imbalanced spokes absolutely can cause the wheel to taco - I have seen it happen when a less experienced tech was working on his friend's wheel in the shop truing...
Forum: Bicycle Mechanics
04-05-23, 07:15 AM
Replies: 17
Views: 520
Posted By JohnDThompson

Modern open-cam quick release skewers are...

Modern open-cam quick release skewers are designed for vertical dropouts and lack sufficient clamping force to securely hold a wheel in a horizontal dropout. Traditional, enclosed-cam quick releases...
Forum: Bicycle Mechanics
04-04-23, 08:02 AM
Replies: 23
Views: 559
Posted By HillRider

+1 My torque wrenches are Craftsman and Park...

+1 My torque wrenches are Craftsman and Park beam-type and, as long as the needles are centered over the zero mark, they are good.
Forum: Bicycle Mechanics
03-26-23, 04:06 AM
Replies: 34
Views: 1,092
Posted By icemilkcoffee

That is generally true for a lot of hubs- the hub...

That is generally true for a lot of hubs- the hub body takes all the weight and the cassette is just free-riding on the axle. BUT Shimano hubs are different. The freehub is bolted to the hub body,...
Forum: Bicycle Mechanics
03-15-23, 05:53 AM
Replies: 128
Views: 4,414
Posted By Lombard

Knurds? Huh? As analogies...

Knurds?



Huh?



As analogies go, this is probably one of the worst I've seen.
Forum: Bicycle Mechanics
03-15-23, 12:31 AM
Replies: 128
Views: 4,414
Posted By cyccommute

Your points about saddles and shoes aside, you...

Your points about saddles and shoes aside, you can see why we measure the pin wear from your illustration. The pin wear allows the roller to move rearward under pressure so that it no longer fits...
Forum: Bicycle Mechanics
03-14-23, 08:38 PM
Replies: 128
Views: 4,414
Posted By Camilo

I think you've just shown why chain checkers...

I think you've just shown why chain checkers exist and should be used by most people. To do an accurate measurement with a ruler - if the user even knows about the ruler method - means the person has...
Forum: Bicycle Mechanics
03-11-23, 06:20 AM
Replies: 33
Views: 866
Posted By PhilFo

As long as it were properly tensioned and the hub...

As long as it were properly tensioned and the hub wasn't jangly loose, I'd trust most any wheel with metal spokes going all the way back to the debut of the safety bicycle. In a nutshell, your 30...
Forum: Bicycle Mechanics
01-28-23, 05:30 PM
Replies: 12
Views: 543
Posted By cyccommute

Get a dental pick or other sharp pointy object...

Get a dental pick or other sharp pointy object and see if it catches on any of the wear spots. If the cup is pitted, it’s done. On the drive side, you can replace the freehub which means you don’t...
Forum: Bicycle Mechanics
09-15-22, 09:24 PM
Replies: 26
Views: 688
Posted By Andrew R Stewart

Chain skipping in the higher effort cogs on an...

Chain skipping in the higher effort cogs on an older bike when used by a rider who wants higher effort gearing usually means that those cogs are worn out, and the chain likely too. Replacing the OEM...
Forum: Bicycle Mechanics
08-05-22, 02:05 PM
Replies: 13
Views: 427
Posted By HelpSingularity

Speaking as a fellow geezer who is now gently...

Speaking as a fellow geezer who is now gently entering the twilight phase of my storied cycling career, I would guess that, at least, a partial solution for your "need for speed" TM :) is not bigger...
Forum: Bicycle Mechanics
08-04-22, 09:28 PM
Replies: 14
Views: 502
Posted By RGMN

I've used a 4th hand brake tool...

I've used a 4th hand brake tool (https://www.parktool.com/en-us/product/cable-stretcher-bt-2?category=Brakes) to hold some tension on the cable while tightening the pinch bolt.
Forum: Bicycle Mechanics
08-01-22, 10:10 AM
Replies: 33
Views: 963
Posted By bamboobike4

Thanks. I may end up doing just that. Just to...

Thanks. I may end up doing just that. Just to avoid a lot of trial and error.
We leave in 3 days, and ran a pretty decent training climb Saturday, 8,100' over 104 miles, mostly leg-punchers.
She...
Forum: Bicycle Mechanics
08-01-22, 10:00 AM
Replies: 33
Views: 963
Posted By bamboobike4

I appreciate the information. I know what the...

I appreciate the information. I know what the gears are, thanks, just wanted to know about the setup.
We did 8,100' Saturday over 104 miles, and she was OK, feels better about heading west.
Forum: Bicycle Mechanics
07-31-22, 07:24 AM
Replies: 22
Views: 668
Posted By Andrew R Stewart

The first thing I think of is that your legs are...

The first thing I think of is that your legs are stronger than your arms are and there's some friction that your arms can't over come but your legs do. A common cause is a rubbing brake. There are...
Forum: Bicycle Mechanics
07-30-22, 06:55 AM
Replies: 23
Views: 744
Posted By stevel610

As he stated, it doesn't have an enclosed cam😉....

As he stated, it doesn't have an enclosed cam😉. To answer your next question: Google it.
Congrats on the new bike. What model?
Forum: Bicycle Mechanics
07-25-22, 02:25 PM
Replies: 8
Views: 1,044
Posted By Crankycrank

The photo shows the lockring to disassemble the...

The photo shows the lockring to disassemble the cassette body and not what you need to remove it from the hub. You'll need the hex key or whatever method is used to mount it to the hub.
Forum: Bicycle Mechanics
07-23-22, 05:20 AM
Replies: 26
Views: 1,138
Posted By dedhed

If they are set so the wheel is centered in the...

If they are set so the wheel is centered in the frame no need to touch them. Kind of the reason they are there, to center the wheel in horizontal dropouts and allow quick wheel replacement.
Forum: Bicycle Mechanics
07-22-22, 02:51 PM
Replies: 12
Views: 958
Posted By Andrew R Stewart

I take absolutes in marketing claims with a big...

I take absolutes in marketing claims with a big grain of salt. Andy
Forum: Bicycle Mechanics
07-17-22, 10:21 AM
Replies: 10
Views: 340
Posted By sweeks

Sounds more like you're planning to *service* the...

Sounds more like you're planning to *service* the hub... something that should be done at appropriate intervals.
Some may disagree with me, but if there's not much wear on the races I'd probably...
Forum: Bicycle Mechanics
07-12-22, 07:58 PM
Replies: 50
Views: 1,595
Posted By Koyote

This happened on one of my bikes shortly after it...

This happened on one of my bikes shortly after it had been rebuilt at the shop. The mechanic had been using a torque wrench which he later found to be faulty, so the bolts weren't torqued properly....
Forum: Bicycle Mechanics
07-12-22, 04:56 PM
Replies: 50
Views: 1,595
Posted By cxwrench

If they took the crank off the bike to clean it...

If they took the crank off the bike to clean it as part of the tune up then it's pretty damn obvious that they didn't install it properly. The most likely thing is that the 2 pinch bolts weren't...
Forum: Bicycle Mechanics
07-10-22, 08:02 PM
Replies: 15
Views: 591
Posted By rccardr

What you need is a tripleizer. Replaces inner...

What you need is a tripleizer. Replaces inner chainring with one that is drilled to accept a granny.
Available in many common BCD’s.
Yes, likely requires a triple FD and a 5mm wider bottom bracket.
Forum: Bicycle Mechanics
07-09-22, 06:14 AM
Replies: 14
Views: 382
Posted By dedhed

BB threads are based on what the frame is...

BB threads are based on what the frame is threaded for. Bottom bracket shells have been threaded in English (BSA), French, Italian, and Swiss threads over the years.
Most threaded BB built since...
Forum: Bicycle Mechanics
06-23-22, 04:27 PM
Replies: 36
Views: 1,193
Posted By Crankycrank

+1 ^^^ Park makes good ones or just do a search...

+1 ^^^ Park makes good ones or just do a search for "bicycle cone wrenches". Stay away from the cheapie, swiss cheese types as they sometimes bend or have a sloppy fit and slip off the nuts. Since...
Forum: Bicycle Mechanics
06-17-22, 01:09 PM
Replies: 31
Views: 1,095
Posted By ThermionicScott

It's unfortunate that we use the term "stronger"...

It's unfortunate that we use the term "stronger" to describe wheels, because that leads one to intuit that thicker and heavier parts would do the job better. What we want are wheels that will support...
Forum: Bicycle Mechanics
06-15-22, 03:16 AM
Replies: 27
Views: 1,030
Posted By JoeTBM

They sell adapters for 1/4 to 3/8 drive changes,...

They sell adapters for 1/4 to 3/8 drive changes, This set from Harbor Freight covers everything from 1/4 to 3/8 to 1/2" drives...
Forum: Bicycle Mechanics
06-14-22, 09:51 AM
Replies: 28
Views: 1,359
Posted By ThermionicScott

For what it's worth, Weinmann recommends a 120kgf...

For what it's worth, Weinmann recommends a 120kgf max for most of the single-walled rims I see on their site (couldn't find the 1900.) It's normal for rear wheels to have a healthy difference in...
Forum: Bicycle Mechanics
06-04-22, 09:28 AM
Replies: 41
Views: 1,663
Posted By 3alarmer

...a ruler or a steel tape measure is far and...

...a ruler or a steel tape measure is far and away the most accurate way to measure this, but the do make some chain checker tools that work a little better than the one you bought. The better ones...
Forum: Bicycle Mechanics
06-01-22, 04:36 AM
Replies: 32
Views: 874
Posted By dsbrantjr

The inner cables are different and, crucially,...

The inner cables are different and, crucially, the housings are of very different construction, shift housing being substantially weaker. Never use shift cable or housing for brake systems, ever.
Forum: Bicycle Mechanics
05-11-22, 06:32 AM
Replies: 12
Views: 463
Posted By fishboat

https://www.youtube.com/watch?v=49lAdo_vUX4

https://www.youtube.com/watch?v=49lAdo_vUX4
Forum: Bicycle Mechanics
05-05-22, 12:30 PM
Replies: 90
Views: 2,767
Posted By 10 Wheels

I keep patching till the valves go bad. ...

I keep patching till the valves go bad.
https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/1500x2000/7_patches_140eaaf2936029f7550ad6f54064bfd9774bf3d6.jpg
Forum: Bicycle Mechanics
05-05-22, 08:07 AM
Replies: 90
Views: 2,767
Posted By JohnDThompson

A good quality patch (I prefer Rema, but there...

A good quality patch (I prefer Rema, but there are others) properly applied can last the life of the tube. A compelling reason to replace a tube would be a blow-out too large to patch, or a leak in...
Forum: Bicycle Mechanics
05-04-22, 09:08 AM
Replies: 17
Views: 467
Posted By capnjonny

I looked up the instructions for working on these...

I looked up the instructions for working on these wheels. What a crock. Give me an old school rim where I can easily true or replace spokes. These wheels seem to me to be just another example of...
Forum: Bicycle Mechanics
04-27-22, 06:52 PM
Replies: 15
Views: 673
Posted By Andrew R Stewart

Al makes for a poor bearing surface. A spoke...

Al makes for a poor bearing surface. A spoke nipple that is intended to be able to be turned in the future is just a bearing that isn't yet being used. Al likes to gall when pressed hard and moved...
Forum: Bicycle Mechanics
02-18-22, 07:14 AM
Replies: 26
Views: 1,862
Posted By JohnDThompson

The late Jobst Brandt felt that a washer between...

The late Jobst Brandt felt that a washer between the pedal axle and crank arm could reduce fretting damage to the crank arm, which can lead to failure at the pedal eye. He did not think that a washer...
Forum: Bicycle Mechanics
02-04-22, 09:05 AM
Replies: 6
Views: 626
Posted By Stormy85

So, I think I might have found the culprit. The...

So, I think I might have found the culprit. The inner circlip eyes were a little dent and when the bearing nested up against them they would prohibit the bearing from spinning freely. I turned it...
Forum: Bicycle Mechanics
12-02-21, 01:40 PM
Replies: 24
Views: 1,557
Posted By canopus

:deadhorse:

:deadhorse:
Forum: Bicycle Mechanics
12-01-21, 09:45 PM
Replies: 24
Views: 1,557
Posted By Andrew R Stewart

Bikes as we know them really don't like pressure...

Bikes as we know them really don't like pressure sprays. The meager seals our components have don't do a good job with pressure washers or car washes. I think you'll find that a commercial washer has...
Forum: Bicycle Mechanics
06-24-21, 01:04 AM
Replies: 56
Views: 3,581
Posted By CliffordK

Interesting machine. I wonder how it...

Interesting machine.

I wonder how it compares to a basic analog stand like my VAR truing stand?

https://www.bikeforums.net/attachment.php?attachmentid=572798

Plus the mod to help with hop...
Forum: Bicycle Mechanics
06-28-14, 12:39 PM
Replies: 9
Views: 3,300
Posted By Dream Cyclery

I have some experience with ceramic bearings. ...

I have some experience with ceramic bearings.

Unless you want to service the hub often and willing to use very light grease, don't expect much improvement from ceramic bearings.
Showing results 1 to 48 of 48


 
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