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Search: Posts Made By: Andrew R Stewart
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Forum: Framebuilders
06-24-22, 07:19 PM
Replies: 2
Views: 91
Posted By Andrew R Stewart

531 Build Inspired by Raleigh Pros

This is the second frame I'm building with no specific rider in mind. I have the tube set (from years ago) and the and a fondness for the early/mid 1970s Raleigh Pros. Fastback stays, full sloping...
06-22-22, 08:51 PM
Replies: 4
Views: 142
Posted By Andrew R Stewart

Will you be using the current crank? Which ring...

Will you be using the current crank? Which ring position will you use? What ring size will you use? how much splay out does your chain stays have?

The common way to figure this out is make some...
06-22-22, 06:59 PM
Replies: 11
Views: 274
Posted By Andrew R Stewart

The first is not a freewheel but an early version...

The first is not a freewheel but an early version of a freehub. The smallest cog threads on doing the job of current cassette lock rings. Still holding the other cogs from turning while the second...
06-22-22, 06:20 PM
Replies: 6
Views: 220
Posted By Andrew R Stewart

I didn't say that there's a current ft der...

I didn't say that there's a current ft der problem, just that with changing the rings C-C or chain line there could be. That there is no ft der or rub after shift suggests that the rings have the...
06-22-22, 06:11 PM
Replies: 11
Views: 255
Posted By Andrew R Stewart

Sorry, thought you were wanting to replace the...

Sorry, thought you were wanting to replace the bearings. Andy
06-22-22, 03:11 PM
Replies: 11
Views: 255
Posted By Andrew R Stewart

Bearings (as in cartridge type, not loose ball)...

Bearings (as in cartridge type, not loose ball) typically have their size or part number etched on them. Though sometimes this ID is weathered away. Measuring the bearing's ID then OD then width is a...
06-22-22, 10:42 AM
Replies: 6
Views: 220
Posted By Andrew R Stewart

Most likely the new rings have lift pins that...

Most likely the new rings have lift pins that stick out a tad more than the cheap steel ring had.

Rings can have a dish to them so when mounted the right way the two rings end up having the...
06-22-22, 08:08 AM
Replies: 5
Views: 199
Posted By Andrew R Stewart

Most of the "sealed cartridge type" BBs are not...

Most of the "sealed cartridge type" BBs are not meant to have the bearing preload adjustable or to be taken apart and serviced. That is the glory of them, plug/play/forget/replace when worn out...
...
06-22-22, 08:03 AM
Replies: 2
Views: 121
Posted By Andrew R Stewart

The absolute best way to eliminate the slap is to...

The absolute best way to eliminate the slap is to eliminate the internal routing.

I have known some that will use an expanding foam to fill the tube with. Do know that this is a messy and hard to...
06-22-22, 08:01 AM
Replies: 3
Views: 93
Posted By Andrew R Stewart

Check the chainring bolts before doing any...

Check the chainring bolts before doing any damaging steps. One could drill off the retaining bolt's head, once the head is gone the threaded portion still in the axle should easily thread out. One...
06-22-22, 07:53 AM
Replies: 15
Views: 306
Posted By Andrew R Stewart

The pressed in cup (the silver thing in the BB...

The pressed in cup (the silver thing in the BB shell that also is securing the white chain case inner piece) is as proper as it needs to be. What can be confusing is that the relative parts are in an...
Forum: Framebuilders
06-21-22, 06:46 PM
Replies: 3
Views: 183
Posted By Andrew R Stewart

JF's method is a time honored classic way. Except...

JF's method is a time honored classic way. Except many painters will spray the lighter color with no mask. Then mask for the darker color. Masking tape holds up better then tooth paste or some make...
06-21-22, 06:27 PM
Replies: 4
Views: 174
Posted By Andrew R Stewart

Half links can be used to fine tune the position...

Half links can be used to fine tune the position of the BB (as with eccentric) or the rear axle (and thus rim WRT brakes) to suit those aspects best set up. Seat set back and brake pad location in...
06-21-22, 05:51 PM
Replies: 15
Views: 306
Posted By Andrew R Stewart

It's been my experience that fully loose balls in...

It's been my experience that fully loose balls in an "Ashtabula" type BB don't hold their place WRT the other balls and the ball tracks on the cone and cup. I suspect it has to do with the bearing...
06-21-22, 05:32 PM
Replies: 15
Views: 271
Posted By Andrew R Stewart

The end of a seat post is a pretty unstressed...

The end of a seat post is a pretty unstressed spot. Not at all what i would suspect the top of a steerer sees. I have painted the cut face of a carbon tube with both paint and epoxy. Can't say that...
06-21-22, 08:00 AM
Replies: 6
Views: 186
Posted By Andrew R Stewart

I'll add to the good reply of debiker1 and say...

I'll add to the good reply of debiker1 and say that cog thickness varies w/ cog counts. So a 7 speed cassette has thicker cogs then an 11 speed does. The goal is to end up with the same cog to cog...
06-21-22, 07:55 AM
Replies: 15
Views: 271
Posted By Andrew R Stewart

If the tape helps you maintain the saw cut in the...

If the tape helps you maintain the saw cut in the right place and end up fairly straight than yes. But you say you have a cutting guide which should do both jobs. If you're thinking the tape will...
Forum: Framebuilders
06-20-22, 08:10 PM
Replies: 21
Views: 763
Posted By Andrew R Stewart

There's a big area between what a warranty says...

There's a big area between what a warranty says in print and what a company might offer. A lot of this depends on the approach of the claim and who is backing it (like a long time Fuji dealer with...
Forum: Framebuilders
06-20-22, 08:03 PM
Replies: 6
Views: 198
Posted By Andrew R Stewart

I might suggest signing onto...

I might suggest signing onto classic-rendezvous-lightweight-vintage-bicycles@googlegroups.com This is a group that talks about your type of frame. Mark, me and a few others here are members there...
06-20-22, 07:57 PM
Replies: 15
Views: 271
Posted By Andrew R Stewart

Generally the finer the blade's teeth the less...

Generally the finer the blade's teeth the less likely the carbon will tear or split. An abrasive blade has a far finer "tooth count" (80 grit is 80 teeth per inch, as example) then a 32, 24 or 18 tpi...
06-20-22, 07:43 PM
Replies: 3
Views: 168
Posted By Andrew R Stewart

Are you talking about calipers that mount via a...

Are you talking about calipers that mount via a center bolt (and often a recessed nut on the frame/fork's backside) or a direct mount caliper (where the caliper pivots are directly threaded into the...
06-19-22, 08:17 PM
Replies: 11
Views: 178
Posted By Andrew R Stewart

Please whatever you do, DON'T drill the bats. And...

Please whatever you do, DON'T drill the bats. And then hide the hole with a covering aero bar clamp so you can't see the crack develop:)

The aero bars I have worked with pretty much all didn't...
06-19-22, 08:22 AM
Replies: 49
Views: 1,103
Posted By Andrew R Stewart

I don't think a shop trying to sell you a bike is...

I don't think a shop trying to sell you a bike is ripping you off. They are trying to both stay in business and keep you as a customer. The key is how these two motivations overlap and what do their...
06-18-22, 11:17 PM
Replies: 29
Views: 614
Posted By Andrew R Stewart

I don't think Brandt said this ("should be")....

I don't think Brandt said this ("should be"). "Because spokes are usually tensioned no higher than 1/3 their yield stress" (cut and paste from the link) is the reference I see. And the word "usually"...
06-18-22, 09:11 PM
Replies: 5
Views: 142
Posted By Andrew R Stewart

I have found the wiper ramp at the leading end of...

I have found the wiper ramp at the leading end of some KS pads to be more trouble to end up with both good rim clearance and a not so mushy lever feel after pad contact has happened. I have ground...
06-18-22, 09:08 PM
06-18-22, 04:57 PM
Replies: 29
Views: 553
Posted By Andrew R Stewart

"this has nothing to do with the handle bars or...

"this has nothing to do with the handle bars or steering it is a arm rest" the OP in post 13

THIS is why I shake my head at many threads and posts here. How one keeps the front wheel pointing...
06-18-22, 04:50 PM
Replies: 29
Views: 614
Posted By Andrew R Stewart

Back in the early 1980s my cousin, John Allen,...

Back in the early 1980s my cousin, John Allen, penned an article (in Bike World) about using pluck tones to both true and gage spoke tensions in a wheel. It had too much math for me to follow, even...
06-18-22, 04:45 PM
Replies: 53
Views: 989
Posted By Andrew R Stewart

What size CO2 cartridge are you using and what...

What size CO2 cartridge are you using and what tire size are you filling with it. 80PSI might well be enough if you are running tires with an appropriate volume. But I wonder if you're not getting...
Forum: Framebuilders
06-18-22, 01:55 PM
Replies: 18
Views: 611
Posted By Andrew R Stewart

Can't do much better than Peter Mooney. Thanks...

Can't do much better than Peter Mooney. Thanks for the follow up. I can well understand why Peter wanted to replace all 3 guides. Between having a match to the old and the easier to deal with new...
06-17-22, 08:13 PM
Replies: 4
Views: 157
Posted By Andrew R Stewart

One could work from the drive side first and end...

One could work from the drive side first and end up on the NDS to see which LH end cap fits your drop out width. Andy
06-17-22, 08:01 PM
Replies: 29
Views: 614
Posted By Andrew R Stewart

I don't think I have ever seen spoke manufacture...

I don't think I have ever seen spoke manufacture tension suggestions/limits, rims sure, hubs WRT lacing/cross pattern sort of. But I cant say I've heard of a spoke brand stating limits.

Can you...
06-17-22, 05:51 PM
Replies: 11
Views: 293
Posted By Andrew R Stewart

And a whole lot more experience at fabricating...

And a whole lot more experience at fabricating and interest in alternative methods in general. I agree that most of the topics are metal focused, mostly because that's what most newbies are trying...
06-17-22, 05:38 PM
Replies: 4
Views: 218
Posted By Andrew R Stewart

Just to make term use more standard a...

Just to make term use more standard a freewheel/freehub/one way clutch "catches" when applying power and the drive "detaches" when not pedaling (coasting).

So I would describe the issue by saying...
06-17-22, 05:21 PM
Replies: 29
Views: 614
Posted By Andrew R Stewart

"durable" or "resilient" Two terms that have...

"durable" or "resilient" Two terms that have very important contributions as to how our bikes feel and last, which unfortunately have fallen out of favor. Andy
06-17-22, 10:56 AM
Replies: 11
Views: 293
Posted By Andrew R Stewart

Agree that knowing how a frame is made is pretty...

Agree that knowing how a frame is made is pretty important to being able to repair one in an appropriate manor. But do know that not all carbon frames, or all parts of one, are done in a mold and...
06-17-22, 08:44 AM
Replies: 13
Views: 372
Posted By Andrew R Stewart

Thanks for the follow up post. Andy

Thanks for the follow up post. Andy
06-17-22, 08:40 AM
Replies: 11
Views: 293
Posted By Andrew R Stewart

I have no experience with them but have been...

I have no experience with them but have been involved with a number of carbon frame repairs over the years as the LBS guy handling the break down and rebuild. So take my comments with some salt...
...
06-17-22, 08:20 AM
Replies: 29
Views: 614
Posted By Andrew R Stewart

Thinner spokes have more elasticity and will...

Thinner spokes have more elasticity and will stretch more for the same tension. Thus as the rim is compressed in to the hub (from the weight and ground contact), or as the wheel is flexed laterally,...
06-16-22, 08:04 AM
Replies: 7
Views: 213
Posted By Andrew R Stewart

Can you post photos to the forum gallery then one...

Can you post photos to the forum gallery then one of us can transfer them here? or post to a photo shating site and give us the link but with "@" becoming "at", "." becomes "dot" and a space is...
06-15-22, 09:10 PM
Replies: 8
Views: 276
Posted By Andrew R Stewart

Not knowing the bike's specs I would wonder if...

Not knowing the bike's specs I would wonder if the drop out (hanger it seems) is threaded. or is that the function of the end "cap". Does the front drop outs have a similar design? Andy
06-15-22, 07:57 PM
Replies: 8
Views: 276
Posted By Andrew R Stewart

Is the end of the through axle broken or it that...

Is the end of the through axle broken or it that askew part a "cap"? Andy
06-15-22, 07:55 PM
Replies: 7
Views: 178
Posted By Andrew R Stewart

Most pulleys have used either a M5 or M6 bolt,...

Most pulleys have used either a M5 or M6 bolt, thus their bolt through holes can be different in diameter. Pulleys are also width speced. Most modern pulleys are thinner that the classic ones used in...
06-15-22, 07:45 PM
Replies: 26
Views: 578
Posted By Andrew R Stewart

You have made my point that very few riders...

You have made my point that very few riders service their bikes as the manufactures would deem best. When we have to pay a user fee for the software used by our future E controlled bikes (monthly or...
Forum: Framebuilders
06-15-22, 08:44 AM
Replies: 4
Views: 2,047
Posted By Andrew R Stewart

(20+) Framebuilders | Facebook...

(20+) Framebuilders | Facebook (https://www.facebook.com/groups/Framebuilders)

The FaceBook Framebuilders site just had the above posting. I replied and asked how Joe is doing. Could be someone...
06-15-22, 08:15 AM
Replies: 4
Views: 184
Posted By Andrew R Stewart

Chain suck is caused by their being too much...

Chain suck is caused by their being too much tension on the portion of the chain that is crossing from one ring to the other.

Worn ring teeth can make this worse but with such a new set up I doubt...
06-15-22, 07:59 AM
Replies: 3
Views: 118
Posted By Andrew R Stewart

Generally these BBs are considered to be non...

Generally these BBs are considered to be non serviceable. If one can get access to the bearings' seals one could pry off the outer seals and clean/lube the interior. Know that this service will only...
06-15-22, 07:10 AM
Replies: 26
Views: 578
Posted By Andrew R Stewart

When indexing first came out (around 1984, of...

When indexing first came out (around 1984, of course this statement disregards history before I was alive when other indexed systems were offered) Shimano suggested a replacement rear shift cable...
06-15-22, 07:03 AM
Replies: 7
Views: 213
Posted By Andrew R Stewart

There are two common designs in how a rear der...

There are two common designs in how a rear der attaches to the drop out (and a few ders that attach elsewhere). Either the drop out has only an axle slot and the der needs a hanger plate (these days...
06-14-22, 08:23 PM
Replies: 7
Views: 320
Posted By Andrew R Stewart

While I dislike the whole 1x trend (gearing gaps...

While I dislike the whole 1x trend (gearing gaps and the "I can't shift a front der well" thing) this would avoid my concerns. Andy
Showing results 1 to 50 of 1000
 


 
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