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Search: Posts Made By: Duragrouch
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
06-13-24, 04:00 AM
Replies: 19
Views: 448
Posted By Duragrouch

Perhaps all the components are original! They...

Perhaps all the components are original! They look about right.
Forum: General Cycling Discussion
06-13-24, 03:58 AM
Replies: 16
Views: 405
Posted By Duragrouch

Oh, that's what that thing is on the Shimano road...

Oh, that's what that thing is on the Shimano road 11 FD I picked up used for a project but haven't used yet.

I always used to remove spoke protectors aka dork discs from all bikes once bought,...
Forum: Bicycle Mechanics
06-13-24, 03:03 AM
Replies: 84
Views: 3,787
Posted By Duragrouch

Queene Anne? Back when I lived in flatland,...

Queene Anne?

Back when I lived in flatland, yeah, 42x24 was the low on my 700c road race bike (and 24 was considered wimpy low on a race bike, but I wasn't a racer), but I can't recall anything...
Forum: Bicycle Mechanics
06-12-24, 11:42 PM
Replies: 12
Views: 337
Posted By Duragrouch

Radial contact: You're right, should get no axial...

Radial contact: You're right, should get no axial preload.

Cup and cone "angular" contact... no preload works ok, but not best, it loads only 2 or 3 bearing balls per side at a given time, and...
Forum: Folding Bikes
06-12-24, 11:23 PM
Replies: 7
Views: 434
Posted By Duragrouch

Thanks. It appears to be a design that is durable...

Thanks. It appears to be a design that is durable and serviceable.
Forum: Mountain Biking
06-12-24, 10:11 PM
Replies: 13
Views: 335
Posted By Duragrouch

My bike is a special case; It's a 20" wheel...

My bike is a special case; It's a 20" wheel folder, so perhaps seat closer to rear tire, though longer wheelbase there, and in front as well. The bike pictured below is not my bike but similar, but...
Forum: General Cycling Discussion
06-12-24, 09:50 PM
Replies: 46
Views: 1,764
Posted By Duragrouch

Obviously, a statement made of necessity. :)

Obviously, a statement made of necessity. :)
Forum: Bicycle Mechanics
06-12-24, 09:37 PM
Replies: 52
Views: 982
Posted By Duragrouch

(above) Those are an axial crimp, so not sure...

(above) Those are an axial crimp, so not sure they would hold on plastic housing as well as a circumferential crimp. But they look cool as heck. I'll have to look those up, whether they are for...
Forum: Touring
06-12-24, 09:27 PM
Replies: 38
Views: 925
Posted By Duragrouch

I think Utah was same, SC was last in country...

I think Utah was same, SC was last in country like that.

Under referendum, WA state went from state stores to private. Liquor costs the same (despite promises of more competition), high taxes,...
Forum: Bicycle Mechanics
06-12-24, 08:46 PM
Replies: 52
Views: 982
Posted By Duragrouch

Looking at mine now, the plastic ferrules on the...

Looking at mine now, the plastic ferrules on the brakes, the hole for them at the brake lever adjuster is plenty large for that, oversize even. Same at the shifter. So I think both are designed to...
Forum: Touring
06-12-24, 05:57 AM
Replies: 38
Views: 925
Posted By Duragrouch

In the USA state of South Carolina, from 1973...

In the USA state of South Carolina, from 1973 thru 2005, you could ONLY get liquor at bars in "mini-bottles", instead of "free pour" from a typical 750ml bottle. If you ordered "two, three ways",...
Forum: Folding Bikes
06-12-24, 05:44 AM
Replies: 54
Views: 5,915
Posted By Duragrouch

I just read that when researching whether bike...

I just read that when researching whether bike discs were carbon or stainless steel. Shimano apparently does sandwich. Yes, warping potential, tell me about it; Aluminum has 3X the coefficient of...
Forum: Folding Bikes
06-12-24, 03:50 AM
Replies: 54
Views: 5,915
Posted By Duragrouch

Well, not a surprise, from what I know of...

Well, not a surprise, from what I know of automotive pads. Metal pads, used on trucks and high-performance vehicles, were notorious for noise, in addition to wear of drums/discs, but conduct heat...
Forum: Folding Bikes
06-12-24, 02:30 AM
Replies: 54
Views: 5,915
Posted By Duragrouch

All true. I think your wider tires are a better...

All true. I think your wider tires are a better match for the discs. I had a very short test ride on a 20" disc folder about ten years ago (might have been a Dahon Formula S18 but can't remember),...
Forum: Folding Bikes
06-12-24, 12:38 AM
Replies: 54
Views: 5,915
Posted By Duragrouch

Oh well yeah, my 21-85 has been perfectly...

Oh well yeah, my 21-85 has been perfectly adequate on mine. But exactly that, I need it all. But I often have heavy cargo loads.
Forum: Folding Bikes
06-12-24, 12:23 AM
Replies: 54
Views: 5,915
Posted By Duragrouch

Ron knows best, but I think it's a stronger frame...

Ron knows best, but I think it's a stronger frame design, to my eye. You can always just add a front carrier adaptor, but get one that ring-clamps at top AND bottom of head tube, not just one, two...
Forum: Touring
06-11-24, 11:52 PM
Replies: 16
Views: 583
Posted By Duragrouch

Y'know, I know of translate and lens, but it...

Y'know, I know of translate and lens, but it hadn't occurred to me for foreign touring. I've used lens to find what something is without knowing, but not for printed language translation. And I've...
Forum: General Cycling Discussion
06-11-24, 11:38 PM
Replies: 46
Views: 1,764
Posted By Duragrouch

Well, like the things noted above, function first...

Well, like the things noted above, function first of all, as I used to ride 35 miles daily. Biking or anything high-active outside in cotton, will be wet and uncomfortable. Same for cotton socks....
Forum: Folding Bikes
06-11-24, 09:33 PM
Replies: 13
Views: 502
Posted By Duragrouch

A noted field trip at pretty much every...

A noted field trip at pretty much every elementary school in the area.

A Brompton is not an "American Innovation", but I could see them having one, along with the evolution of bicycles, at the...
Forum: Bicycle Mechanics
06-11-24, 09:17 PM
Replies: 52
Views: 982
Posted By Duragrouch

Yes, I thought I implied that I wouldn't crimp...

Yes, I thought I implied that I wouldn't crimp because they were plastic, perhaps that was not clear. Also, my 5mm brake cable housing (replacement, not on bike), came with plastic ferrules. So did...
Forum: Classic & Vintage
06-11-24, 06:24 PM
Replies: 19
Views: 448
Posted By Duragrouch

Oh yes, I could see from the other components,...

Oh yes, I could see from the other components, that I don't think anything is original, if the frame dates to the 1970s. But great components, they all match the flavor of the bike. And if those rims...
Forum: Touring
06-11-24, 06:05 PM
Replies: 16
Views: 583
Posted By Duragrouch

I assume the above was in Italy. Like most things...

I assume the above was in Italy. Like most things in business, sounds like things are priced (as high as possible) for market, and that is probably because competitor imports are taxed high.

For a...
Forum: Bicycle Mechanics
06-11-24, 05:46 PM
Replies: 52
Views: 982
Posted By Duragrouch

I just looked at my 30+ year old Park CN-4...

I just looked at my 30+ year old Park CN-4 cutters; They also appear to be lefty like pic shown, and they do have tiny crimper for core-cable-end-cap, but they lack crimper for housing ferrule, which...
Forum: Road Cycling
06-11-24, 05:33 AM
Replies: 56
Views: 954
Posted By Duragrouch

Shouldn't be difficult to make a test spec, just...

Shouldn't be difficult to make a test spec, just degree twist at crank spindle for unit pedal weight at forward crank position, while holding heat tube fixed (takes handlebar and stem stiffness out...
Forum: Touring
06-11-24, 04:51 AM
Replies: 16
Views: 583
Posted By Duragrouch

I was not aware things are cheap in Japan right...

I was not aware things are cheap in Japan right now, that's a huge surprise from when I was last there 30 years ago, I thought nothing was cheap there ever.

BMWs and other German makes were...
Forum: Bicycle Mechanics
06-11-24, 04:38 AM
Replies: 14
Views: 448
Posted By Duragrouch

Small tips: V-brake pads with threaded studs...

Small tips:

V-brake pads with threaded studs typically come with, for each pad, 1 nut, 2 convex washers, and 2 concave washers of *different thickness*, and you can put the thin or thicker concave...
Forum: Bicycle Mechanics
06-11-24, 04:20 AM
Replies: 52
Views: 982
Posted By Duragrouch

Interestingly, those are configured like...

Interestingly, those are configured like left-hand scissors or shears. I'll have to look at my old ones, see if same.
Forum: Bicycle Mechanics
06-11-24, 04:06 AM
Replies: 13
Views: 567
Posted By Duragrouch

What works better than S-clips, is wrap, like my...

What works better than S-clips, is wrap, like my folder came with; Picture a paper-towel roll core, unzipped into a spiral, made of plastic, that wraps at cable diameter; You wrap perhaps 3 wraps...
Forum: Road Cycling
06-11-24, 03:47 AM
Replies: 56
Views: 954
Posted By Duragrouch

Is Hi-Mod supposed to be lighter at same...

Is Hi-Mod supposed to be lighter at same (torsional) stiffness, or stiffer at same weight? If mod means elastic modulus, I'm gonna take a wild guess that it's the latter, but it could be a stiffer...
Forum: General Cycling Discussion
06-11-24, 03:26 AM
Replies: 46
Views: 1,764
Posted By Duragrouch

Well yes, I knew not a quality track bike. But I...

Well yes, I knew not a quality track bike. But I figured single speed, horizontal dropouts, and drop bars, it's a track bike. But yes, that's using the term rather loosely. I can't recall if a fixie...
Forum: Bicycle Mechanics
06-11-24, 01:44 AM
Replies: 14
Views: 271
Posted By Duragrouch

(above video) I think that's pretty good. I like...

(above video) I think that's pretty good. I like him using steel wool rather than something like sandpaper, or an aggressive rotary wire brush, the latter two leaving more scratches, whereas the...
Forum: Folding Bikes
06-11-24, 01:34 AM
Replies: 36
Views: 10,006
Posted By Duragrouch

The bike: Now there's something you don't see...

The bike: Now there's something you don't see every day. Fitting in a skinny locker is the "killer app" for that one.

The wheels: If the rim and spokes are one piece, that's a process I'd like to...
Forum: Bicycle Mechanics
06-11-24, 12:57 AM
Replies: 84
Views: 3,787
Posted By Duragrouch

I'd be really happy with 3-4 overlaps. On my old...

I'd be really happy with 3-4 overlaps. On my old road race bike with 52/42, it was 6 overlaps of 7 cogs. On my current 50/34, it's 5 out of 7. If I can do a 50/30 (which others have done, but would...
Forum: Classic & Vintage
06-10-24, 10:28 PM
Replies: 19
Views: 448
Posted By Duragrouch

Those wheels may or may not be original. I say...

Those wheels may or may not be original. I say this because I believe those might be double-socket/eyelet rims, which are not the lightest (thus counter to the frame mission-profile), but boy howdy...
Forum: Bicycle Mechanics
06-10-24, 10:18 PM
Replies: 14
Views: 271
Posted By Duragrouch

Or if you happen to have some "Oxi-clean" around...

Or if you happen to have some "Oxi-clean" around for laundry and such, don't know the percent oxalic axid.
Forum: Bicycle Mechanics
06-10-24, 08:50 PM
Replies: 64
Views: 1,949
Posted By Duragrouch

(above) Agreed. Lacking a truing stand or a...

(above) Agreed. Lacking a truing stand or a repair stand, I find that a "workmate" style portable clamp bench, works well at standing height for both repair and wheel truing; Invert the bike,...
Forum: Bicycle Mechanics
06-10-24, 08:43 PM
Replies: 14
Views: 271
Posted By Duragrouch

That's a great idea, I have BKF, I'll try that,...

That's a great idea, I have BKF, I'll try that, also on any rust on carbon steel or cast iron cookware. Thanks. On steel bikes, even after removing rust, I like to treat with some Ospho for a mild...
Forum: Mountain Biking
06-10-24, 08:30 PM
Replies: 13
Views: 335
Posted By Duragrouch

(above) It's never the walk of shame. Even now,...

(above) It's never the walk of shame. Even now, after retrofitting my folder for lower gears to spin up, and gotten better at climbing standing, I still often get off to walk, as it exercises...
Forum: General Cycling Discussion
06-10-24, 08:18 PM
Replies: 46
Views: 1,764
Posted By Duragrouch

If you've ever seen Breaking Away, you'll recall...

If you've ever seen Breaking Away, you'll recall the scene where Dave is handed a junky low-end track bike with one-piece crank no less, but a wheel and bottom bracket bearing rebuild and good wheel...
Forum: Mountain Biking
06-10-24, 07:33 PM
Replies: 13
Views: 335
Posted By Duragrouch

Really? Not questioning you but just asking: just...

Really? Not questioning you but just asking: just the seat forward, or also stem/handlebars forward the same amount?

Because seat-forward I would be closer to the pedals, I also find I have to...
Forum: Folding Bikes
06-10-24, 07:08 PM
Replies: 49
Views: 2,358
Posted By Duragrouch

Thanks, sincerly appreciated. I could not...

Thanks, sincerly appreciated. I could not remember from past threads, if freewheels went down to 11T. I'll try to remember.

I'll correct my post above, so not leading anyone astray. Again, thanks.
Forum: Folding Bikes
06-10-24, 06:54 PM
Replies: 52
Views: 4,079
Posted By Duragrouch

You can cut it with normal scissors or a knife....

You can cut it with normal scissors or a knife. It's just impossible to cut with a "melting" cutter like they use in rigging shops or at REI, kevlar has a higher melting point. Which means you can't...
Forum: Folding Bikes
06-10-24, 04:09 PM
Replies: 49
Views: 2,358
Posted By Duragrouch

So glad it's worked out well for you. ...

So glad it's worked out well for you.

(edited to correct)

If you need more speed, a higher-high, an upgrade to freewheel with 11T high cog is the most common setup on 20" folders.

If you...
Forum: Bicycle Mechanics
06-10-24, 05:58 AM
Replies: 84
Views: 3,787
Posted By Duragrouch

Oh I agree, electronic does mesh with having a...

Oh I agree, electronic does mesh with having a record of things. It's just... a very digital system controlling and tracking a very analog one. It's like having a joystick and electric servos to move...
Forum: Bicycle Mechanics
06-10-24, 03:09 AM
Replies: 84
Views: 3,787
Posted By Duragrouch

Seems a bit incongruous to have a system of...

Seems a bit incongruous to have a system of electronic shift controls AND automatic statistics, for a system that essentially throws the chain from one sprocket to another, like a late nineteenth...
Forum: Folding Bikes
06-10-24, 02:36 AM
Replies: 52
Views: 4,079
Posted By Duragrouch

Sounds good. I have some dacron sailing line I...

Sounds good. I have some dacron sailing line I got a good deal on, I thought was double-braid but discovered the core is linear; That's better for less stretch, I just can't do running eye splices...
Forum: Bicycle Mechanics
06-10-24, 02:29 AM
Replies: 84
Views: 3,787
Posted By Duragrouch

Cross-chaining: If you mean constant switching of...

Cross-chaining: If you mean constant switching of chainrings, I think it depends on where the border gears sit in the range. Right now, the 2X conversion on my folder, 21-85 gear inches, is about the...
Forum: Classic and Vintage Sales
06-10-24, 02:12 AM
Replies: 15
Views: 600
Posted By Duragrouch

Ah, ok, thanks. That would make sense for a...

Ah, ok, thanks. That would make sense for a freewheel, just more axle sticking out the left, I think. And I don't think less lateral strength on the wheel, it just means the non-drive-side spokes are...
Forum: Mountain Biking
06-10-24, 01:48 AM
Replies: 13
Views: 335
Posted By Duragrouch

Gosh I'm not a mountain biker, just trying to...

Gosh I'm not a mountain biker, just trying to think through the physics of this.

Going slower is inherently less stable:
- less gyroscopic inertia of the wheels
- less centering force on...
Forum: Bicycle Mechanics
06-10-24, 12:26 AM
Replies: 7
Views: 1,802
Posted By Duragrouch

To all, the zombie of tapers past, present, and...

To all, the zombie of tapers past, present, and the zombie of tapers yet to come: Sheldon Brown website has a very good article on the subject, even showing which mismatches are possible, and which...
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