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Search: Posts Made By: Duragrouch
Showing results 1 to 50 of 1000
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Forum: Folding Bikes
05-30-24, 04:45 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

Thanks Ron. 3" C-2-C between the holes, that...

Thanks Ron. 3" C-2-C between the holes, that would do it, in that respect. The highest Profile Design riser (that they said wouldn't fit my bars) is 70mm. 3" is just over 76mm, that would be great.
...
Forum: Folding Bikes
05-30-24, 02:56 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

Thanks. Those look just a touch different in...

Thanks. Those look just a touch different in design from yours, but still look strong. I found ones like on your bike after searching on amazon for "double stem" instead of "double clamp" like I had...
Forum: Folding Bikes
05-30-24, 02:45 AM
Replies: 41
Views: 1,907
Posted By Duragrouch

It really makes my day when folks on here can be...

It really makes my day when folks on here can be helpful.

Someone else on the forum years back, and me in the past year, couldn't find a replacement fork (20", 74mm OLD) online to save my life. I...
Forum: Folding Bikes
05-30-24, 02:25 AM
Replies: 41
Views: 1,907
Posted By Duragrouch

Yep, the newer fork measures a couple less than...

Yep, the newer fork measures a couple less than 110mm by eye, and about 8mm longer for the old fork sounds just about right. Fortunately, both forks are fine, and I'll keep them with their respective...
Forum: Cyclocross and Gravelbiking (Recreational)
05-30-24, 01:36 AM
Replies: 26
Views: 834
Posted By Duragrouch

The most important expenses on a building are the...

The most important expenses on a building are the foundation, and basic structure. I'm thinking at that price, the frame is junky steel? Or just oversize aluminum, which is now ubiquitous everywhere....
Forum: General Cycling Discussion
05-30-24, 01:13 AM
Replies: 36
Views: 902
Posted By Duragrouch

It's not the wheel size per se, but that the load...

It's not the wheel size per se, but that the load is all above wheel center at that height. Smaller wheels would lower the CG with respect to track (width between tire centers). My guess is they use...
Forum: Folding Bikes
05-30-24, 12:42 AM
Replies: 41
Views: 1,907
Posted By Duragrouch

Stepped: I thought that big washer might have a...

Stepped: I thought that big washer might have a conical profile on the other side, but yes, the rings do that so it must just be a big flat washer.

Stem extender: I think I know the thread you are...
Forum: General Cycling Discussion
05-30-24, 12:27 AM
Replies: 32
Views: 574
Posted By Duragrouch

(above) Oh no question, agreed. On foot or bike...

(above) Oh no question, agreed. On foot or bike can only treat more minor things, in which case, time is less critical too. I think perhaps the greatest use of foot or bike in a large crowd/venue, is...
Forum: Folding Bikes
05-29-24, 11:49 PM
Replies: 41
Views: 1,907
Posted By Duragrouch

Thanks Ron, good knowledge. The part on my Dahon...

Thanks Ron, good knowledge. The part on my Dahon is also plastic but not broken. Is the underside of that part stepped, or just flat and bears against the slotted rings? (Which I guess, one ring fits...
Forum: General Cycling Discussion
05-29-24, 10:23 PM
Replies: 21
Views: 442
Posted By Duragrouch

Before you can ride your regular bike again, if a...

Before you can ride your regular bike again, if a friend can loan you a recumbent, that would be great. I went to a long-wheelbase 'bent for a couple of years, both for hand pain, and especially neck...
Forum: General Cycling Discussion
05-29-24, 10:01 PM
Replies: 32
Views: 574
Posted By Duragrouch

I'm definitely in favor of this for rapid...

I'm definitely in favor of this for rapid response and being able to mingle in an event to be there in seconds, while waiting for motorized EMTs if needed.

I was going to ask if they were wearing...
Forum: Folding Bikes
05-29-24, 12:14 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

Looks good. Where did you get the silver...

Looks good. Where did you get the silver double-clamps? Those look beefy, enough to take handlebar loads. Most look flimsy in design. I need strong ones for a raised handlebar. Thanks in advance.
Forum: Cyclocross and Gravelbiking (Recreational)
05-28-24, 11:56 PM
Replies: 26
Views: 834
Posted By Duragrouch

Thanks for that. That would explain a good price...

Thanks for that. That would explain a good price like the REI bike at this time of year, I wondered. Last November and December, they had good bike sale prices, understandable being winter and...
Forum: Cyclocross and Gravelbiking (Recreational)
05-28-24, 11:35 PM
Replies: 23
Views: 424
Posted By Duragrouch

Wow, you ain't kidding. $750 for an R300 road...

Wow, you ain't kidding. $750 for an R300 road disc frame (+$500 for their carbon road disc fork). But shows only S size, and it's closeout of 2023 stock. But yeah, that's a good deal. Unfortunately...
Forum: Bicycle Mechanics
05-28-24, 11:13 PM
Replies: 3
Views: 158
Posted By Duragrouch

So the cylindrical part is one-piece with the hex...

So the cylindrical part is one-piece with the hex flats on both sides of it? If so, then it should be easy; The part facing outboard (the "Outer Lock Nut" or OLD), should have some texture on it that...
Forum: General Cycling Discussion
05-28-24, 11:01 PM
Replies: 54
Views: 1,110
Posted By Duragrouch

On a different thread, someone asking advice on a...

On a different thread, someone asking advice on a new gravel bike, one good deal had 650B/"27-5" tires, and I questioned the merit versus 26" MTB, but then it was pointed out that this swaps easy for...
Forum: Advocacy & Safety
05-28-24, 10:52 PM
Replies: 39
Views: 1,365
Posted By Duragrouch

:) One could argue that the mods are the...

:)

One could argue that the mods are the bulwarks of the forum. And bollards of the forum just doesn't have the same ring to it.
Forum: General Cycling Discussion
05-28-24, 09:21 PM
Replies: 21
Views: 351
Posted By Duragrouch

Long before I bike toured, I discovered on travel...

Long before I bike toured, I discovered on travel that nylon or poly fabrics are awesome, a quick soak and rinse in sink, drip dry in the shower, dry by the next morning. (Cotton takes forwever to...
Forum: Classic & Vintage
05-28-24, 09:13 PM
Replies: 32
Views: 1,185
Posted By Duragrouch

Yep, sounds like not worth the effort, unless you...

Yep, sounds like not worth the effort, unless you enjoy frame restoration, a lot of effort. I used to know folks who told me about previous jobs, where there were others that would have frames...
Forum: General Cycling Discussion
05-28-24, 08:46 PM
Replies: 21
Views: 351
Posted By Duragrouch

I have lycra pants, never went with the padded...

I have lycra pants, never went with the padded shorts or pants (designed for no undies) as I want to wash them more often; Back then the padding was not removable. My seat is comfy and I wear boxer...
Forum: Commuting
05-28-24, 08:29 PM
Replies: 8
Views: 325
Posted By Duragrouch

Used to be, in a simpler time, cars came with...

Used to be, in a simpler time, cars came with same tires front and rear. Then, to fine-tune handling (and often compensate for a poorly balanced car and/or poor suspension geometry), we started to...
Forum: General Cycling Discussion
05-28-24, 07:55 PM
Replies: 13
Views: 460
Posted By Duragrouch

This is all under the topic Conservation of...

This is all under the topic Conservation of Angular Momentum. The wheel is spinning in one orientation. You tilt it, and the reaction forces it experiences are from transferring that motion into...
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 10:25 PM
Replies: 26
Views: 834
Posted By Duragrouch

(above) I'm seeing pretty darned good options for...

(above) I'm seeing pretty darned good options for new at that price point. Way less than only a couple years back. And switchable between 700C and 650B (with discs), I have to admit, that's the...
Forum: Folding Bikes
05-27-24, 10:19 PM
Replies: 162
Views: 12,277
Posted By Duragrouch

Shirley you cannibal be serious.

Shirley you cannibal be serious.
Forum: Touring
05-27-24, 09:43 PM
Replies: 85
Views: 2,895
Posted By Duragrouch

I have personal history with one of the entities....

I have personal history with one of the entities. I also had brief ownership of a 3x7. And SAs and Shimanos in my youth and serviced both. But that doesn't bias me for or against either in terms of...
Forum: Bicycle Mechanics
05-27-24, 08:30 PM
Replies: 81
Views: 1,862
Posted By Duragrouch

OK, I'll buy that. I just... like to learn. Like...

OK, I'll buy that. I just... like to learn. Like to know reasons for things, if for no other reason than I find it interesting.
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 08:25 PM
Replies: 26
Views: 834
Posted By Duragrouch

And from what I hear, "non-1X" goes cheap these...

And from what I hear, "non-1X" goes cheap these days. :)

Given the all-new everything on the REI, I'd say, a well-used but quality bike, and replacement of all needed items such as tires and...
Forum: Touring
05-27-24, 02:55 AM
Replies: 85
Views: 2,895
Posted By Duragrouch

Depends. I'm not an expert. Sturmey-Archer and...

Depends. I'm not an expert. Sturmey-Archer and Sachs/SRAM both made 3-speed IGHs (among many others), and the SRAM Dual Drive also has external derailleur gears, but I've also heard in recent months...
Forum: Bicycle Mechanics
05-27-24, 01:52 AM
Replies: 81
Views: 1,862
Posted By Duragrouch

OK, good info... I'm a little confused, but not...

OK, good info... I'm a little confused, but not in a bad way... I said previously that I wondered whether the grease was being squeezed out to the point of metal to metal, and it sounded like you...
Forum: Folding Bikes
05-27-24, 12:58 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

No rant worries, thanks for the info. Looked good...

No rant worries, thanks for the info. Looked good at first glance, but I see your points. Wow, I would have thought the latter versus the former of my guesses, but yeah, tilting the high racks down...
Forum: Touring
05-26-24, 11:27 PM
Replies: 48
Views: 1,094
Posted By Duragrouch

Yeah I figured it had to be something along those...

Yeah I figured it had to be something along those lines, but didn't know exactly, so looked it up before I posted. Pretty amazing. Until now I had thought that e-paper displays were just more legible...
Forum: Touring
05-26-24, 08:41 PM
Replies: 48
Views: 1,094
Posted By Duragrouch

"E-Ink" always makes me laugh, but I know what...

"E-Ink" always makes me laugh, but I know what you are talking about, lower power consumption than a typical electronic display. But it always reminds me of this:

"Some people think paper faxes...
Forum: Bicycle Mechanics
05-26-24, 08:34 PM
Replies: 81
Views: 1,862
Posted By Duragrouch

Respectfully, I have many weird *questions* about...

Respectfully, I have many weird *questions* about lubricants, when I don't have the answer, and am always open to those that know more about a subject (I think I recognized your knowledge in a very...
Forum: Folding Bikes
05-26-24, 07:28 PM
Replies: 51
Views: 2,125
Posted By Duragrouch

Well, I agree with you, but the same argument...

Well, I agree with you, but the same argument could be made about a front derailleur mount, which all BFs used to come with, but as soon as they started offering 1Xs with 3x8 IGH, that was no longer...
Forum: Folding Bikes
05-26-24, 07:23 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

I think that is an available option. Bike Friday...

I think that is an available option. Bike Friday will pretty much do anything for ya.
Forum: Folding Bikes
05-26-24, 06:57 AM
Replies: 45
Views: 3,468
Posted By Duragrouch

Agree with all, and mostly with regard to steel....

Agree with all, and mostly with regard to steel. But occasionally you find ringers; The following is a superb article from a great website. The author is not some armchair quarterback basing on...
Forum: Bicycle Mechanics
05-26-24, 05:43 AM
Replies: 81
Views: 1,862
Posted By Duragrouch

I think moreso with your ribbed post. But that's...

I think moreso with your ribbed post. But that's just a pure guess.
Forum: Folding Bikes
05-26-24, 03:02 AM
Replies: 51
Views: 2,125
Posted By Duragrouch

I see good in that it holds the head tube top and...

I see good in that it holds the head tube top and bottom. Some have said it is weak in that it's just point contact at the screw mounts, versus on a brompton where the rack attachment also bears...
Forum: Folding Bikes
05-26-24, 02:55 AM
Replies: 45
Views: 3,468
Posted By Duragrouch

[b]I hate to be the fly in the ointment on this,...

[b]I hate to be the fly in the ointment on this, but the pin specs say hardness Rc62-65; This is *excellent* hardness, we're talking quality knife hardness. It's also very difficult to get that hard...
Forum: Bicycle Mechanics
05-26-24, 01:57 AM
Replies: 81
Views: 1,862
Posted By Duragrouch

I get that. If everyone is saying it's standard...

I get that. If everyone is saying it's standard practice to grease the post, and there's not widespread slipping of them, there must be enough friction force. I'm just wondering how much margin there...
Forum: Bicycle Mechanics
05-26-24, 12:13 AM
Replies: 81
Views: 1,862
Posted By Duragrouch

I just checked engineering tables for static...

I just checked engineering tables for static coefficients of friction.

Dry aluminum against aluminum, 1.05

Dry aluminum on mild steel, 0.61

Dry Mild steel on mild steel, 0.74

"Greasy",...
Forum: Folding Bikes
05-25-24, 09:42 PM
Replies: 51
Views: 2,125
Posted By Duragrouch

IIRC(?) I think he has a Bike Friday All-Packa...

IIRC(?) I think he has a Bike Friday All-Packa with similar large tires (what it was designed for*), so not a surprise. I think my Dahon Speed could fit 2.0s, I have some to try out after current...
Forum: Framebuilders
05-25-24, 08:08 PM
Replies: 59
Views: 2,675
Posted By Duragrouch

Sounds like you know what you are talking about....

Sounds like you know what you are talking about. Thanks.

I may have to try baking those screwdriver bits on the off-chance it's hydrogen embrittlement. I've never seen brittle this bad. Maybe they...
Forum: Folding Bikes
05-25-24, 06:28 PM
Replies: 7
Views: 418
Posted By Duragrouch

The Curl D9 looks pretty good on paper, though I...

The Curl D9 looks pretty good on paper, though I would need a 9T high cog for high enough top gear. I think there is at least one freehub and cassette that will do that (Capreo?) but may be out of...
Forum: Touring
05-25-24, 06:04 PM
Replies: 85
Views: 2,895
Posted By Duragrouch

So is the CS-RK3 (IGH) direct drive in high gear,...

So is the CS-RK3 (IGH) direct drive in high gear, so low and middle are both reductions, or is middle gear direct drive? If the latter, you only get one additional low gear. Either way though, if you...
Forum: Cyclocross and Gravelbiking (Recreational)
05-25-24, 05:51 PM
Replies: 26
Views: 834
Posted By Duragrouch

Yes I grasped that, from the Sheldon Brown...

Yes I grasped that, from the Sheldon Brown article. Even though they said a 650B conversion requires longer reach brakes, I grasped that with discs, you could easily have a bike that fits both 700C...
Forum: Classic & Vintage
05-25-24, 05:39 PM
Replies: 32
Views: 1,185
Posted By Duragrouch

Check if the tubes are butted, easy on the seat...

Check if the tubes are butted, easy on the seat tube. If butted, it's worth salvaging.
Forum: Touring
05-25-24, 05:32 PM
Replies: 15
Views: 411
Posted By Duragrouch

Yeah, my rims look exactly like that, after 10...

Yeah, my rims look exactly like that, after 10 years, keeping mostly out of rain, frequent pad cleaning, but the hills here take their toll. At first it was mostly the front rim, which was why I was...
Forum: Folding Bikes
05-25-24, 05:07 PM
Replies: 51
Views: 2,125
Posted By Duragrouch

You are so right. Double head tube mount would...

You are so right. Double head tube mount would both divide the vertical shear load between the two points, and also reduce the bending stress by an order of magnitude.

Old '60s Moulton "shoppers"...
Forum: Folding Bikes
05-25-24, 02:06 AM
Replies: 9
Views: 409
Posted By Duragrouch

I won't buy a new bike unless it had discs....

I won't buy a new bike unless it had discs. Needed for my terrain.

The PC22 looks nice. Wary about carbon durability against dings, but in high stress areas like top front of seat tube, carbon...
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