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Search: Posts Made By: Duragrouch
Showing results 1 to 50 of 1000
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Forum: Folding Bikes
06-08-24, 01:21 AM
Replies: 7
Views: 281
Posted By Duragrouch

I wish you were local to me so I could give you...

I wish you were local to me so I could give you the low rear rack that came off my Dahon Speed, I needed to install a typical (large-wheel-bike) "high" rear rack, both to hold full size panniers high...
Forum: Folding Bikes
06-08-24, 01:08 AM
Replies: 3
Views: 150
Posted By Duragrouch

(above) I retrofit my Dahon Speed for 50/34 front...

(above) I retrofit my Dahon Speed for 50/34 front with added derailleur, replaced the (terrible) dahon compact rear derailleur with a medium (GS) cage one installed in "normal" location to handle the...
Forum: Road Cycling
06-08-24, 12:58 AM
Replies: 25
Views: 575
Posted By Duragrouch

That's a good explanation, better than my own...

That's a good explanation, better than my own points about hyperglide. This may also explain, crunching on mine if I try to shift under high load; I still have the original Dahon cassette on my...
Forum: Classic & Vintage
06-08-24, 12:04 AM
Replies: 51
Views: 1,405
Posted By Duragrouch

Oh yeah, I had at least a couple of those in...

Oh yeah, I had at least a couple of those in mind. And as long as the product is good, the company does well. On the other hand, when the parent company tanks, like when they expand too quickly, it...
Forum: Folding Bikes
06-07-24, 10:24 PM
Replies: 3
Views: 216
Posted By Duragrouch

Stem recall details, easy to check: ...

Stem recall details, easy to check:

https://www.cpsc.gov/Recalls/2009/dahon-and-rei-novara-folding-bicycles-recalled-due-to-fall-hazard
Forum: Classic & Vintage
06-07-24, 10:20 PM
Replies: 51
Views: 1,405
Posted By Duragrouch

Thanks. I just find it weird, a bike store only a...

Thanks. I just find it weird, a bike store only a selling one brand. But I can see advantages for Trek. Sometimes that's worked for some manufacturers of things, sometimes not, and sometimes makers...
Forum: Bicycle Mechanics
06-07-24, 10:03 PM
Replies: 54
Views: 1,375
Posted By Duragrouch

Wow, that is quite brittle. Mine wasn't...

Wow, that is quite brittle.

Mine wasn't that, but I had sharpened the blade to close to 10 degrees per side, like a good Japanese vegetable knife, it just glides through hard veggies like raw yams...
Forum: Road Cycling
06-07-24, 09:35 PM
Replies: 25
Views: 575
Posted By Duragrouch

Good point. That's making me think.... You still...

Good point. That's making me think.... You still hear bad sounds when trying to shift rear when hammering on the pedals standing; The shift "begins" on the bottom (6 o'clock) position of the cogs;...
Forum: Classic & Vintage
06-07-24, 05:18 AM
Replies: 51
Views: 1,405
Posted By Duragrouch

Well that explains me never seeing trek at my...

Well that explains me never seeing trek at my LBS, which is an outstanding place that has a huge selection of used components on one side of the place, and new bikes on the other. The last trek 520 I...
Forum: Classic & Vintage
06-07-24, 02:23 AM
Replies: 51
Views: 1,405
Posted By Duragrouch

Wait... Trek has their own bike shops that sell...

Wait... Trek has their own bike shops that sell nothing but Trek? And are they exclusive, or can other shops still stock Trek?
Forum: Road Cycling
06-07-24, 01:55 AM
Replies: 108
Views: 2,528
Posted By Duragrouch

I understand, but... arrest and jail time?...

I understand, but... arrest and jail time? Clearly they are bikers changing, and that is less threat to the public than many traffic infractions, which are a citation, no arrest.

But these are...
Forum: Bicycle Mechanics
06-07-24, 01:38 AM
Replies: 31
Views: 659
Posted By Duragrouch

Yes I reuse tubes. Covered cold metal handle on...

Yes I reuse tubes. Covered cold metal handle on climbing axe. Other handle stuff. Rubber bands. Sans valve, inside my tires as zero cost anti-flat strips between new tube and tire. Around cam-strap...
Forum: Folding Bikes
06-07-24, 01:17 AM
Replies: 3
Views: 150
Posted By Duragrouch

Welcome to the Folding World! It can get cramped...

Welcome to the Folding World! It can get cramped when someone folds us up without permission, sorta like the opposite of falling off the edge of Discworld.

I had been on the forum very scarcely...
Forum: Road Cycling
06-07-24, 01:03 AM
Replies: 108
Views: 2,528
Posted By Duragrouch

The corrupt depend on inaction. And ignorance.

The corrupt depend on inaction. And ignorance.
Forum: Bicycle Mechanics
06-07-24, 12:11 AM
Replies: 38
Views: 934
Posted By Duragrouch

OP: In case you love internal gear hubs, many...

OP: In case you love internal gear hubs, many newer ones now have a rotary shifter coaxial with the hub, mounted inside the frame dropout, and that is much more resistant to drop damage, I'm sure...
Forum: Road Cycling
06-07-24, 12:02 AM
Replies: 25
Views: 575
Posted By Duragrouch

The specifics: Derailleur shifting under high...

The specifics: Derailleur shifting under high chain tension is bad; The chain is angled during the shift, so instead of distributing the load fairly equally on plates on both sides, where the chain...
Forum: Classic & Vintage
06-06-24, 11:31 PM
Replies: 51
Views: 1,405
Posted By Duragrouch

OK, so there are steels I have seen that rust a...

OK, so there are steels I have seen that rust a certain amount and then stop or slow way down, used widely on architecture in the 1970s, less so now I think. I don't know if the steel was special or...
Forum: Road Cycling
06-06-24, 11:07 PM
Replies: 108
Views: 2,528
Posted By Duragrouch

I think an overreaction by police, based on the...

I think an overreaction by police, based on the offense, and him not streaking naked but trying to change between cars.

From what I find online, the race event was in KS, not OK, but race...
Forum: Bicycle Mechanics
06-06-24, 10:46 PM
Replies: 54
Views: 1,375
Posted By Duragrouch

On another thread (steel frame corrosion, someone...

On another thread (steel frame corrosion, someone thought chrome-moly has adequate corrosion resistance), I posted a link helping explain chrome's contribution and quantities required. Incredible...
Forum: Classic & Vintage
06-06-24, 10:12 PM
Replies: 51
Views: 1,405
Posted By Duragrouch

I regret to say (as I own frames with such) 4130...

I regret to say (as I own frames with such) 4130 chrome moly has nowhere near enough alloys to prevent rust. It rusts like mad if countermeasures are not taken. The main corrosion resisting alloy is...
Forum: Bicycle Mechanics
06-06-24, 09:43 PM
Replies: 54
Views: 1,375
Posted By Duragrouch

Thank you for the input, as requested. Agreed......

Thank you for the input, as requested. Agreed... sort of. I usually associate "stretch" and "elongation" with permanent deformation, which is why I actually try to avoid those terms (perhaps...
Forum: Folding Bikes
06-06-24, 08:46 PM
Replies: 51
Views: 1,591
Posted By Duragrouch

Thank you, you're right, I did forget about that...

Thank you, you're right, I did forget about that (and as I was writing I thought I had remembered 400% (not claimed but gear inch range close to my 21-85), but looked up BWR and found 300%, I had...
Forum: Folding Bikes
06-06-24, 07:48 PM
Replies: 27
Views: 1,800
Posted By Duragrouch

Mine just might take larger than 2.0. But that...

Mine just might take larger than 2.0. But that looks plenty big enough for me for on-highway, and even then, standard mudguards would not fit, I'd need to rig something non-standard. Around town,...
Forum: Bicycle Mechanics
06-06-24, 07:35 PM
Replies: 47
Views: 10,139
Posted By Duragrouch

Thanks for checking that, appreciated. Yeah,...

Thanks for checking that, appreciated. Yeah, that's what the picture and diagram looked like, but I allowed that my perception of the picture might be off, and the diagram not fully accurate. With...
Forum: Bicycle Mechanics
06-06-24, 06:38 PM
Replies: 54
Views: 1,375
Posted By Duragrouch

All of the above, from several contributers, is...

All of the above, from several contributers, is true. But no one has mentioned spoke stiffness/elasticity (versus stress); Butted spokes, thinner in the middle, are more elastic, and the thicker ends...
Forum: Folding Bikes
06-06-24, 05:59 PM
Replies: 27
Views: 1,800
Posted By Duragrouch

You're correct, of course. 406 at least, has...

You're correct, of course.

406 at least, has the option of 1.75 and often 2.0 in terms of clearance. 349, very often, not. Not what a brommie is designed for. Yet, many rave about it touring. But...
Forum: Bicycle Mechanics
06-06-24, 04:24 AM
Replies: 29
Views: 1,178
Posted By Duragrouch

This is an area that I never trust the...

This is an area that I never trust the manufacturer, and the bike shops don't have the time to check this on every bike they sell. Even if brand new bike, first thing I do is open up the bearings...
Forum: Bicycle Mechanics
06-06-24, 03:59 AM
Replies: 8
Views: 293
Posted By Duragrouch

Yes, chain should be lubed periodically, my clue...

Yes, chain should be lubed periodically, my clue is when the lube oil becomes pasty from suspended metal dust in it. However if you want a cleaner lube, there are tomes of data and threads on here...
Forum: Bicycle Mechanics
06-06-24, 03:44 AM
Replies: 5
Views: 124
Posted By Duragrouch

I'll be damned. That is slick. Good MacGyver. ...

I'll be damned. That is slick. Good MacGyver.

I had that experience, replacing the junk bearings and wheels on a good piece of carryon luggage (roller), with quality inline skate wheels and...
Forum: Bicycle Mechanics
06-06-24, 03:23 AM
Replies: 16
Views: 396
Posted By Duragrouch

Intermittent problem, not continuous. Hmm. ...

Intermittent problem, not continuous. Hmm.

If none of the above, check for excessive lateral play of freehub body, by trying to wiggle largest cog laterally. A small amount of play is normal. Also...
Forum: Bicycle Mechanics
06-06-24, 03:00 AM
Replies: 22
Views: 479
Posted By Duragrouch

Spacers: Curiously, when I decided to space my BB...

Spacers: Curiously, when I decided to space my BB out 4mm, I had some spacers I had bought once to space the cassette out (decided against, due to greatly reduced lockring thread depth), and I'll be...
Forum: Folding Bikes
06-06-24, 02:29 AM
Replies: 1
Views: 162
Posted By Duragrouch

I don't know Schwinns, but sounds rare. I don't...

I don't know Schwinns, but sounds rare. I don't see where (if) the frame folds. I see big levers to allow easy lowering of seat, and I think inversion or removal of handlebars, so greatly reduced...
Forum: Folding Bikes
06-06-24, 02:18 AM
Replies: 7
Views: 281
Posted By Duragrouch

I agree with above. At first I thought they were...

I agree with above. At first I thought they were "gray market" Dahons imported from another country, sometimes the same model name as in USA but lower level frame and parts, so it can get confusing....
Forum: Folding Bikes
06-06-24, 01:41 AM
Replies: 3
Views: 216
Posted By Duragrouch

Some Dahon telescoping handleposts were subject...

Some Dahon telescoping handleposts were subject to a recall. You should check online, there are clues for that in terms of serial number and looking for a letter on the post when unfolded. Warning:...
Forum: Folding Bikes
06-06-24, 01:27 AM
Replies: 3
Views: 180
Posted By Duragrouch

I topped out my bike computer at 65 kph (about 40...

I topped out my bike computer at 65 kph (about 40 mph) on a mild downgrade pedaling hard on the aeros of my 700c racer in top gear decades ago. I've only recently learned about speed wobble, but I...
Forum: Folding Bikes
06-06-24, 01:08 AM
Replies: 4
Views: 171
Posted By Duragrouch

I agree with above. Regarding tubes, with 1.75,...

I agree with above. Regarding tubes, with 1.75, you usually have a choice of 1.5-1.75 and 1.75-2.0, I choose the latter, the tube is stretching a bit less when inflated, I think a bit better for...
Forum: Folding Bikes
06-06-24, 12:50 AM
Replies: 27
Views: 1,800
Posted By Duragrouch

Schwinnsta posted the following link on another...

Schwinnsta posted the following link on another thread, an example of touring on a Brompton:

https://www.clevercycles.com/blogs/news-and-events/down-the-pacific-coast-by-brompton/
Forum: Folding Bikes
06-06-24, 12:29 AM
Replies: 51
Views: 1,591
Posted By Duragrouch

Yeah, swinging triangles that "latch" up top, I...

Yeah, swinging triangles that "latch" up top, I think would be fixed lateral, but perhaps not in moment, but that only would matter if analyzing the seatstays; For purposes of the triangle lateral...
Forum: Bicycle Mechanics
06-05-24, 10:59 PM
Replies: 23
Views: 417
Posted By Duragrouch

You may be correct. I don't know: Crowd, do they...

You may be correct. I don't know: Crowd, do they make adaptors to convert press-fit to threaded BB, and is there still space then to use a 24mm(?) hollow-spindle crank with external bearings?
...
Forum: Bicycle Mechanics
06-05-24, 10:53 PM
Replies: 38
Views: 934
Posted By Duragrouch

The world of bike options is now open to you at...

The world of bike options is now open to you at your feet. If you frequently travel between home countries, it's much easier to have a bike at each location. But if travel is less frequent, or...
Forum: Bicycle Mechanics
06-05-24, 10:17 PM
Replies: 47
Views: 10,139
Posted By Duragrouch

Sometimes if something seems stuck, especially a...

Sometimes if something seems stuck, especially a small size, before applying a lot of torque, I'll see if one of my english (SAE) size wrenches fits tighter.



Loctite red is notorious for...
Forum: Northeast
06-05-24, 09:45 PM
Replies: 81
Views: 3,784
Posted By Duragrouch

I know, it's a zombie thread (16+ years, a new...

I know, it's a zombie thread (16+ years, a new record?! And it took that long to get implemented, and now not), but totally on point, so why create an entirely new thread for people to say the same...
Forum: Living Car Free
06-05-24, 09:39 PM
Replies: 28
Views: 3,329
Posted By Duragrouch

Uh... no; congestion pricing plan paused: ...

Uh... no; congestion pricing plan paused:

https://www.pbs.org/newshour/nation/new-york-pauses-plan-to-charge-big-tolls-to-drive-into-core-of-manhattan
Forum: Bicycle Mechanics
06-05-24, 04:03 AM
Replies: 38
Views: 934
Posted By Duragrouch

OK, thanks. I looked at their profile and it said...

OK, thanks. I looked at their profile and it said US.

If SRAM hadn't bought Sachs and then sold off the IGH business to Sun Race, the OP could probably find someone in Schweinfurt who used to work...
Forum: Folding Bikes
06-05-24, 03:59 AM
Replies: 51
Views: 1,591
Posted By Duragrouch

(above) Pannier hook: Oh, very slick. Yeah,...

(above) Pannier hook: Oh, very slick. Yeah, somebody was thinking. 15kg is plenty for town errands. Not enough for touring, but that's not what it was designed for. But very good as a townie. Mine's...
Forum: Folding Bikes
06-05-24, 03:20 AM
Replies: 14
Views: 391
Posted By Duragrouch

Wow, quite a rendition on the flute. I never...

Wow, quite a rendition on the flute. I never appreciated the accordian when I was young, it was considered a boring old-person's instrument, everything was rock and roll. Now I appreciate it.
...
Forum: Folding Bikes
06-05-24, 01:46 AM
Replies: 51
Views: 1,591
Posted By Duragrouch

(above) You've mentioned that before (and I...

(above) You've mentioned that before (and I definitely don't mind you mentioning it again), it's cool, it rocks, definitely good for a frequent folder. That's a lot of cantilever length, but it looks...
Forum: Folding Bikes
06-05-24, 12:48 AM
Replies: 14
Views: 391
Posted By Duragrouch

Anywhere else I'd say that is weird, the Dash is...

Anywhere else I'd say that is weird, the Dash is more rare (actually I've never seen a Dash or K3 here in the pacific northwest USA), but it's Japan, and I've heard that is THE place for minivelos.
...
Forum: Bicycle Mechanics
06-05-24, 12:28 AM
Replies: 22
Views: 479
Posted By Duragrouch

I had same problem on Dahon Speed 2X conversion,...

I had same problem on Dahon Speed 2X conversion, front derailleur cage would hit on front derailleur adaptor, due to its thickness and huge diameter seat tube, cage not far enough inboard to shift to...
Forum: Bicycle Mechanics
06-05-24, 12:10 AM
Replies: 54
Views: 1,375
Posted By Duragrouch

I've never owned a truing stand. Not only can you...

I've never owned a truing stand. Not only can you true wheels in the bike frame, you then don't need a dishing gage for proper offset of the rear wheel (assuming a derailleur system), you just center...
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