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Search: Posts Made By: Duragrouch
Showing results 1 to 50 of 1000
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Forum: Touring
05-25-24, 01:21 AM
Replies: 6
Views: 122
Posted By Duragrouch

Link: Permission denied. 26" wheels used to...

Link: Permission denied.

26" wheels used to be the most versatile rim size in terms of tire selection, had everything from baldies to knobbies. Now, 700c same (29'ers is just oversize 700c), but...
Forum: Touring
05-25-24, 01:18 AM
Replies: 6
Views: 122
Posted By Duragrouch

Yeah I also want to convert from rim to disc...

Yeah I also want to convert from rim to disc brakes, and my downhills are not that long. Just 80 meters of descent in half km can cause rear drive side spoke break, with all braking on rear (20 inch...
Forum: General Cycling Discussion
05-25-24, 12:41 AM
Replies: 39
Views: 1,183
Posted By Duragrouch

Oh no worries. I was a specialist in the area. I...

Oh no worries. I was a specialist in the area. I was asked about the above in my job interview fresh out of university, aced it. No other candidates. Was not taught in school. I picked up from...
Forum: Framebuilders
05-25-24, 12:30 AM
Replies: 56
Views: 2,306
Posted By Duragrouch

Hmm. I have a screwdriver and security bit set...

Hmm. I have a screwdriver and security bit set from harbor freight where the bits fracture if you sneeze at them. Can nitrogen embrittlement be baked out at home-oven temps? When I derusted some...
Forum: Bicycle Mechanics
05-25-24, 12:23 AM
Replies: 27
Views: 507
Posted By Duragrouch

I did now, thank you. I hadn't recalled seeing...

I did now, thank you. I hadn't recalled seeing that term on amazon a couple years ago when I was perusing parts deep for my bike rebuild, though did see cassettes colored like that.
Forum: Cyclocross and Gravelbiking (Recreational)
05-24-24, 11:55 PM
Replies: 1
Views: 46
Posted By Duragrouch

It's on a trail, so you don't need serious...

It's on a trail, so you don't need serious mountain bike chops. No suspension at either end is necessary. You could modify hard-tail, hard-fork mountain bike easy. Keys are:
+ The frame fits you...
Forum: Classic & Vintage
05-24-24, 10:51 PM
Replies: 17
Views: 302
Posted By Duragrouch

That was before Walmart got big. Before that, I...

That was before Walmart got big. Before that, I think he did a christmas movie. Daughter was a reporter of some sort.
Forum: Bicycle Mechanics
05-24-24, 10:19 PM
Replies: 51
Views: 795
Posted By Duragrouch

Excellent point! The bolt had partially cracked...

Excellent point! The bolt had partially cracked through, which reduced stiffness and clamp force, allowing more movement, and squeak. Good warning sign for anything on the bike.
Forum: Advocacy & Safety
05-24-24, 10:15 PM
Replies: 6
Views: 67
Posted By Duragrouch

Her fault, but always try to ride and drive...

Her fault, but always try to ride and drive defensively. You also could have run into something that was supposed to be there, like a car about to back up to parallel park.
Forum: General Cycling Discussion
05-24-24, 10:13 PM
Replies: 33
Views: 637
Posted By Duragrouch

I think the two-kid trailer I have in storage,...

I think the two-kid trailer I have in storage, has a rubber-lined clamp that clamps around the left chainstay, and a u-joint between it and the trailer tongue. Early trailers aimed for a simple...
Forum: Bicycle Mechanics
05-24-24, 09:45 PM
Replies: 51
Views: 795
Posted By Duragrouch

Regular bikes with seatposts clamped in place for...

Regular bikes with seatposts clamped in place for years at a time and not moving up and down frequently, grease or anti-seize makes complete sense, to keep them from seizing in the seat tube.

But...
Forum: Bicycle Mechanics
05-24-24, 09:25 PM
Replies: 27
Views: 507
Posted By Duragrouch

I just enjoy your referring to the multi-colored...

I just enjoy your referring to the multi-colored one as oil slick. It fits. I'll have to remember that reference when referring to similar colored parts. I just looked for the term on OED as an...
Forum: Framebuilders
05-24-24, 09:15 PM
Replies: 56
Views: 2,306
Posted By Duragrouch

Just for my own knowledge sake... I'm a little...

Just for my own knowledge sake... I'm a little confused. Why would there need to be a *post*-weld purge? I know little about welding, but I imagine if there needed to be displacement of any gas, it...
Forum: Folding Bikes
05-24-24, 08:49 PM
Replies: 28
Views: 918
Posted By Duragrouch

That's really good news, I had thought I missed...

That's really good news, I had thought I missed the thudbuster boat when I passed on a used long 33.9 one on craigslist. Now if I can get the front handlepost re-engineered to used a suspension...
Forum: Folding Bikes
05-24-24, 08:47 PM
Replies: 28
Views: 918
Posted By Duragrouch

And ridiculously cheap for the capability I now...

And ridiculously cheap for the capability I now have. Original cracked frame was swapped for cheap used one, this time with improved seatpost bushing. Saved wheels and handlepost and handlebar....
Forum: Bicycle Mechanics
05-24-24, 08:34 PM
Replies: 51
Views: 795
Posted By Duragrouch

Dahon crack at tube slit: - Plastic bushing so...

Dahon crack at tube slit:
- Plastic bushing so clamping would deform tube more, adding stress. Redesigned with aluminum bushing which both doesn't compress, and reinforces joint. I'd like it even...
Forum: Classic & Vintage
05-24-24, 07:08 PM
Replies: 104
Views: 3,653
Posted By Duragrouch

Mixed bag. To their credit, many young folks are...

Mixed bag. To their credit, many young folks are not eager to own a car, a big money suck, and they also seem to value experiences over accumulation of things. I know someone graduated in a top...
Forum: Touring
05-24-24, 06:06 PM
Replies: 28
Views: 469
Posted By Duragrouch

I was always inpressed with the Bosch Automotive...

I was always inpressed with the Bosch Automotive Handbook and its *very* thin pages to jam a lot of info into a small book that could fit in many blazer side pockets. And that was 30 years ago. Hmm,...
Forum: Touring
05-24-24, 04:47 PM
Replies: 182
Views: 11,301
Posted By Duragrouch

It forgot to mention, graffiti viewing without...

It forgot to mention, graffiti viewing without the tiring walking like in a museum. "It's a feature, not a bug."
Forum: Touring
05-24-24, 04:38 PM
Replies: 73
Views: 2,187
Posted By Duragrouch

That's what I'm saying.

That's what I'm saying.
Forum: Bicycle Mechanics
05-24-24, 04:06 PM
Replies: 22
Views: 439
Posted By Duragrouch

Hyperglide compatible: While the freehub spline...

Hyperglide compatible: While the freehub spline pattern was an invention of Shimano (asymmetric, one groove wider than the rest, to ensure all the cogs are "indexed" in rotation position the same),...
Forum: Bicycle Mechanics
05-24-24, 07:25 AM
Replies: 51
Views: 795
Posted By Duragrouch

I'm just gonna step back and put on helmet,...

I'm just gonna step back and put on helmet, ballistic vest, athletic cup, and dive for the blast shelter on that one. You'll see.
Forum: Bicycle Mechanics
05-24-24, 06:54 AM
Replies: 51
Views: 795
Posted By Duragrouch

None at all. But if greased at the seapost collar...

None at all. But if greased at the seapost collar or seat tube, when folded, the seatpost goes way down, contacting the grease, then up, then down, then up, etc. Very quickly I think, it will have a...
Forum: Folding Bikes
05-24-24, 04:48 AM
Replies: 41
Views: 3,179
Posted By Duragrouch

(above) Good looking repair! Thanks for the...

(above) Good looking repair! Thanks for the useful info!

Good price on the pin. Hard! Excellent choice, I'll have to remember that. EDIT: Uh, I hate to be the fly in the ointment on this, but the...
Forum: Classic & Vintage
05-23-24, 11:41 PM
Replies: 104
Views: 3,653
Posted By Duragrouch

Just read the long Eroica Japan thread. Any of...

Just read the long Eroica Japan thread. Any of the above bikes would qualify for any of the Eroica rides worldwide, even the Trek. (up thru 1987) The Eroica California is 22 SEP 2024 in Cambria on...
Forum: Classic & Vintage
05-23-24, 11:29 PM
Replies: 104
Views: 3,653
Posted By Duragrouch

RD definitely off, wrapped in sheet urethane...

RD definitely off, wrapped in sheet urethane foam, and taped to right chainstay. Rear dropouts, they make plastic things to go in there, but you could also use an old axle and quick release. Front...
Forum: General Cycling Discussion
05-23-24, 10:44 PM
Replies: 56
Views: 1,535
Posted By Duragrouch

Why go just a 12 or 13 tooth jump on the crank?...

Why go just a 12 or 13 tooth jump on the crank? 16T is the defacto standard now and shifts well, 50/34 is very common, as well as 52/36. Both are common on a 110mm BCD. Smaller than 34 and you'll...
Forum: Classic & Vintage
05-23-24, 10:36 PM
Replies: 88
Views: 3,580
Posted By Duragrouch

I'm not a frame builder, but retired from...

I'm not a frame builder, but retired from structural engineering. I'd be very questioning of this, but the 2022 date is recent enough, my bet is it's been FEA'd out to be sound. Doesn't look that...
Forum: Classic & Vintage
05-23-24, 10:26 PM
Replies: 88
Views: 3,580
Posted By Duragrouch

Why? I've heard that mini-velos are super hot in...

Why? I've heard that mini-velos are super hot in Japan, more agile in traffic and a bit more compact in parking space and into a car hatch, though still not as small as a folder. But some ride them...
Forum: Classic & Vintage
05-23-24, 09:44 PM
Replies: 88
Views: 3,580
Posted By Duragrouch

Does the Japanese flag mean Karate? Does the...

Does the Japanese flag mean Karate? Does the Yin-Yang mean Taekwondo?
Forum: Classic & Vintage
05-23-24, 08:27 PM
Replies: 88
Views: 3,580
Posted By Duragrouch

Food: Looks like miso soup and chirashi(?) bowl....

Food: Looks like miso soup and chirashi(?) bowl. Delish!

I'd LOVE an otter cafe!

Bullet train: *sigh-envy* I didn't even know about the mag-lev, that's awesome.

Mt Fuji: (Me showing pic of...
Forum: General Cycling Discussion
05-23-24, 04:29 AM
Replies: 33
Views: 637
Posted By Duragrouch

The Bike Friday travel bike, which is sold solo...

The Bike Friday travel bike, which is sold solo or with a travel suitcase for it that converts to a two wheel trailer at destination, uses a trailer connector which is a male quick-disconnect...
Forum: General Cycling Discussion
05-23-24, 03:32 AM
Replies: 39
Views: 1,183
Posted By Duragrouch

Small thing, just for clarity. Most cars have...

Small thing, just for clarity. Most cars have simply "suspension", or more accurately "passive suspension". "Active" suspension is where the engine or an electric motor drive a hydraulic pump that...
Forum: Bicycle Mechanics
05-23-24, 01:25 AM
Replies: 12
Views: 233
Posted By Duragrouch

+1. This is starting to make a whole lot more...

+1. This is starting to make a whole lot more sense to me now, both carrier, and difference between mountain and road.
Forum: Touring
05-23-24, 12:31 AM
Replies: 28
Views: 469
Posted By Duragrouch

Have you seen Platoon (1986)?

Have you seen Platoon (1986)?
Forum: Bicycle Mechanics
05-23-24, 12:09 AM
Replies: 12
Views: 233
Posted By Duragrouch

Years ago I was going to space my 7 speed...

Years ago I was going to space my 7 speed cassette out, to reduce the gap between the small cog and the frame just a bit, because the chain would drop in there and jam tight. But the spacer reduced...
Forum: Classic & Vintage
05-22-24, 11:42 PM
Replies: 104
Views: 3,653
Posted By Duragrouch

I know nothing about C&V nor prices. I agree...

I know nothing about C&V nor prices.

I agree that the frame size on the Trek 620 has less of a market, but for the right sized person, I think that would be a fine functional touring bike (forget...
Forum: Bicycle Mechanics
05-22-24, 11:06 PM
Replies: 12
Views: 233
Posted By Duragrouch

Y'know, that's a really good point which I had...

Y'know, that's a really good point which I had not realized before. I had thought the large aluminum carriers to which the large cogs on big 1X cassettes, and especially with skinny 11/12/13 cogs are...
Forum: General Cycling Discussion
05-22-24, 10:30 PM
Replies: 56
Views: 1,535
Posted By Duragrouch

Based on advice in bike magazines, I've been a...

Based on advice in bike magazines, I've been a "spinner" since I got my first good road bike, stayed on the small (42) chainring for years. These days I have more specific advice, and more helpful...
Forum: Touring
05-22-24, 10:17 PM
Replies: 8
Views: 236
Posted By Duragrouch

Climbs can be interesting and that elevation is...

Climbs can be interesting and that elevation is not terrible. But the trailer is the dealbreaker; First, it adds a lot of weight to the climb. Second, it adds a lot of weight going down, and it and...
Forum: General Cycling Discussion
05-22-24, 10:07 PM
Replies: 33
Views: 637
Posted By Duragrouch

Whole thread is TL: DR. Just a few quick things...

Whole thread is TL: DR. Just a few quick things from experience.

I used a B.O.B. trailer on a tour. It is unique in having the pivot point completely behind the rear wheel, like a car travel...
Forum: Electric Bikes
05-22-24, 09:39 PM
Replies: 5
Views: 183
Posted By Duragrouch

Ebikes are advancing FAST, in terms of...

Ebikes are advancing FAST, in terms of performance versus cost. I think there are superior bikes new for about that cost, with full warranty, and batteries, gears, and motors wear, and all are...
Forum: General Cycling Discussion
05-22-24, 09:28 PM
Replies: 56
Views: 1,535
Posted By Duragrouch

52 to 50 is exactly 4% difference in one...

52 to 50 is exactly 4% difference in one direction and about the same in the other. Could you feel it? Yes. Would it make a difference? Depends if you are near your cadence or torque limit. Are you a...
Forum: Folding Bikes
05-22-24, 07:54 PM
Replies: 28
Views: 918
Posted By Duragrouch

If it comes with a telescoping handlepost, you...

If it comes with a telescoping handlepost, you should be able to lower it to your desire, it goes as short as it does for folding, and also to fit folks 4'8" tall (if same range as Dahon). Can't...
Forum: Folding Bikes
05-22-24, 07:31 PM
Replies: 5
Views: 287
Posted By Duragrouch

I agree, except for the kicker, "... save for the...

I agree, except for the kicker, "... save for the folded size..."; That's Brompton's killer app, its raison d'e^tre, there is no other reason to own a Brompton or brompnot. I wouldn't. If I buy a...
Forum: Bicycle Mechanics
05-22-24, 07:19 PM
Replies: 51
Views: 795
Posted By Duragrouch

Well, my folder at my seat height, there is 17"...

Well, my folder at my seat height, there is 17" of exposed seatpost and about 6" inside the seat tube, with almost the entire seatpost descending when folded, about 10" of that then sticking out...
Forum: Bicycle Mechanics
05-22-24, 06:51 PM
Replies: 51
Views: 795
Posted By Duragrouch

I did not. I can see the reasons. I think old...

I did not. I can see the reasons. I think old smooth chromed DOM steel posts might slip with grease, but evidently not modern aluminum ones.

As I said, grease or antiseize on a long seatpost on a...
Forum: Touring
05-22-24, 05:30 PM
Replies: 153
Views: 10,977
Posted By Duragrouch

+1, and I agree. However it's good to know, that...

+1, and I agree. However it's good to know, that as tire section height increases, so does fork trail, increasing stability, but also steering heaviness if loaded. Conversely, smaller section height...
Forum: Bicycle Mechanics
05-22-24, 05:17 PM
Replies: 22
Views: 439
Posted By Duragrouch

Small additional: Narrow-wide chainrings only...

Small additional: Narrow-wide chainrings only come in even-number of teeth, and must be installed with the chain narrow link on narrow tooth, and wide link on wide tooth. This is why they only work...
Forum: Folding Bikes
05-22-24, 04:55 PM
Replies: 28
Views: 918
Posted By Duragrouch

Interesting. Questions, for different reason: Is...

Interesting. Questions, for different reason: Is the top telescoping section round (no flat or slot to keep aligned), does it come completely out, or has a stop at top of travel, and what is the...
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