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Search: Posts Made By: Duragrouch
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Forum: Road Cycling
10-14-19, 08:41 PM
Replies: 91
Views: 5,827
Posted By Duragrouch

I guessed 40', many cruisers seem to populate...

I guessed 40', many cruisers seem to populate that length these days. Gonna look it up on sailboatdata.
Forum: Road Cycling
10-14-19, 03:43 PM
Replies: 380
Views: 23,324
Posted By Duragrouch

Well I may indeed need more torque for the hills...

Well I may indeed need more torque for the hills here. But at minimum, I want the gears to pedal up the steeps with no motor assist, for exercise, or in case the motor or battery fails. Think of it...
Forum: Road Cycling
10-14-19, 01:19 PM
Replies: 380
Views: 23,324
Posted By Duragrouch

That looks great! Very similar to what I have...

That looks great! Very similar to what I have now, sans motor. What matters is not whether you can sit on it when folded, but that it rolls easy (stays folded, wheels parallel). I like the rear...
Forum: Road Cycling
10-14-19, 11:53 AM
Replies: 380
Views: 23,324
Posted By Duragrouch

When powerful E-bikes were less common maybe 4 or...

When powerful E-bikes were less common maybe 4 or 5 years back, a friend built up an E-bike for his wife to commute from north Seattle to Renton and back. He built it on a downhill race bike frame;...
Forum: Road Cycling
10-14-19, 11:46 AM
Replies: 91
Views: 5,827
Posted By Duragrouch

Keerist! That's big. OK I gotta ask, what size...

Keerist! That's big. OK I gotta ask, what size boat, and if you're so inclined, what model? I sail dinghies, but know way more about keelboats than I should, I research them heavy, find good deals...
Forum: Road Cycling
10-14-19, 11:42 AM
Replies: 380
Views: 23,324
Posted By Duragrouch

As an efficient means of transportation, E-bikes...

As an efficient means of transportation, E-bikes are great, especially to replace a car. But...
- You lose the fitness factor. We're an obese nation because people in the suburbs drive a car to the...
Forum: Road Cycling
10-09-19, 10:11 AM
Replies: 91
Views: 5,827
Posted By Duragrouch

So far, he doesn't ride it at all! I picked up...

So far, he doesn't ride it at all! I picked up the bike for a song late last fall for a friend (saw it while looking for a bike for his daughter), was a great deal because the seller was in a remote...
Forum: Road Cycling
10-09-19, 10:05 AM
Replies: 91
Views: 5,827
Posted By Duragrouch

They do have a plastic sheath covering the PBO...

They do have a plastic sheath covering the PBO fibers. What is a pain is the spoke nipples are a bastard configuration, requiring a special Park Tool wrench, which I have not yet obtained. But the...
Forum: Road Cycling
10-08-19, 06:25 PM
Replies: 91
Views: 5,827
Posted By Duragrouch

It's a cheap derailleur, plus works worse because...

It's a cheap derailleur, plus works worse because a Dahon "compact" derailleur mounted further forward. Even where the limit screws are right now, it shifts with difficulty into the big cog. Because...
Forum: Road Cycling
10-08-19, 10:03 AM
Replies: 91
Views: 5,827
Posted By Duragrouch

Yeah, that's what I thought. UNTIL I did a bit...

Yeah, that's what I thought. UNTIL I did a bit too fast of a shift to low while climbing a hill and the chain jumped over the big cog and JAMMED between it and the spokes. Tore up the spokes, source...
09-17-19, 03:13 AM
Replies: 293
Views: 19,534
Posted By Duragrouch

I can't help it. I'm a metrology snob. It's a...

I can't help it. I'm a metrology snob. It's a thing.
09-16-19, 05:42 PM
Replies: 293
Views: 19,534
Posted By Duragrouch

Now, wouldn't that be more elegant, expressed in...

Now, wouldn't that be more elegant, expressed in Pascals, or even Bars? PSI is for NASCAR fans.
09-16-19, 10:25 AM
Replies: 293
Views: 19,534
Posted By Duragrouch

Because then you won't have to hold your arms up...

Because then you won't have to hold your arms up for hours on end and can just let them drape by your sides like limp noodles and they'll get all supple and limp and noodly like mine. Ramen.
09-15-19, 10:05 PM
Replies: 293
Views: 19,534
Posted By Duragrouch

You'll take my under seat steering when you pry...

You'll take my under seat steering when you pry it from my cold dead hands.
09-10-19, 01:41 AM
Replies: 293
Views: 19,534
Posted By Duragrouch

Oh dear, a man that saves *everything*, like me....

Oh dear, a man that saves *everything*, like me. It's like we're married or something.
09-09-19, 07:19 PM
Replies: 293
Views: 19,534
Posted By Duragrouch

HAH! I was being mildly snarky (with only fun...

HAH! I was being mildly snarky (with only fun intentions), I didn't know that there are actual organizations dedicated to enforcing vintageness! Geez, we're getting as bad as the dog show people.
...
Forum: Road Cycling
09-09-19, 07:01 PM
Replies: 298
Views: 25,471
Posted By Duragrouch

For an overseas touring bike, I'd like discs, but...

For an overseas touring bike, I'd like discs, but with V-brake posts on the frame in case something goes wonky and I need to fit V-brakes in a pinch. Maybe this will not be an issue as discs become...
09-09-19, 06:44 PM
Replies: 293
Views: 19,534
Posted By Duragrouch

I think gumwalls look great. But they do...

I think gumwalls look great. But they do deteriorate quicker in UV light.

Let's go through the inventory of the above, shall we?


Lugged steel frame and fork
Downtube shifters
Retro brake...
09-03-19, 01:53 AM
Replies: 107
Views: 6,776
Posted By Duragrouch

You want a turbo-encabulator. ...

You want a turbo-encabulator.

https://youtu.be/Ac7G7xOG2Ag
Forum: Road Cycling
08-27-19, 07:57 PM
Replies: 298
Views: 25,471
Posted By Duragrouch

That's great, I'd pay that for disc pads. Glad to...

That's great, I'd pay that for disc pads. Glad to see the price has come down.

It would be prohibitively expensive or impossible to retrofit discs to my current bike, but if I ever buy new, I'll...
Forum: Road Cycling
08-26-19, 10:15 PM
Replies: 298
Views: 25,471
Posted By Duragrouch

Well, retired on social security, no pension,...

Well, retired on social security, no pension, living in an SRO, actually yes.

To be truthful, when I was first looking into a folding bike (because it fits in my tiny SRO), I wanted the cool one...
Forum: Road Cycling
08-26-19, 01:45 PM
Replies: 298
Views: 25,471
Posted By Duragrouch

Discs: They make the rims more durable if you...

Discs: They make the rims more durable if you bike often in wet mess, the grit can wear through the rim sidewalls. For a wet-weather bike, I think a big plus. But pads are expensive.

Rim brakes:...
07-23-19, 02:57 AM
Replies: 93
Views: 6,201
Posted By Duragrouch

I love bar wrapping, I'm a natural at it and find...

I love bar wrapping, I'm a natural at it and find it therapeutic. However I haven't done it in decades. Currently I have straight bars with grips, but I'd like bullhorn bars and when I fit those,...
Forum: Road Cycling
07-08-19, 05:34 PM
Replies: 90
Views: 8,647
Posted By Duragrouch

I'm open to new solutions, as long as they are...

I'm open to new solutions, as long as they are cheap. Kevlar belted tires on winter sale for $7? Buy. Spending more for tire liners? Old tubes are free. Did I mention I was cheap?

And sealant?...
Forum: Road Cycling
07-08-19, 04:32 PM
Replies: 145
Views: 34,537
Posted By Duragrouch

Think about what you said; Are the input (road)...

Think about what you said; Are the input (road) shocks coming vertically, or horizontally?

A telescoping post does change height, but you set it up so that when statically loaded (1G), the height...
07-08-19, 04:27 PM
Replies: 101
Views: 6,603
Posted By Duragrouch

"One valid test is worth a thousand expert...

"One valid test is worth a thousand expert opinions." - ancient engineering proverb

I sit corrected. Thank you.
07-08-19, 04:17 PM
Replies: 71
Views: 4,151
Posted By Duragrouch

Standard cross patterns are fine, nothing weird...

Standard cross patterns are fine, nothing weird like "crow's foot" or anything like it. But, the max number of crosses is dictated by the number of rim holes and the hub flange size; sometimes a 4X...
Forum: Road Cycling
07-08-19, 04:10 PM
Replies: 90
Views: 8,647
Posted By Duragrouch

Thorns? Next time you replace the tubes, cut the...

Thorns? Next time you replace the tubes, cut the valve stems off the old tubes as close as you can (leaving the smallest hole possible), then put the old, flattened tubes between the new tube and the...
07-08-19, 04:06 PM
Replies: 101
Views: 6,603
Posted By Duragrouch

Myth (reduction in air drag). Shaving legs...

Myth (reduction in air drag). Shaving legs originally was to make bandaging and removal from road rash (scrapes from crashes) easier.

Less hair is smoother. Doesn't necessarily mean less total...
07-08-19, 03:53 PM
Replies: 71
Views: 4,151
Posted By Duragrouch

Late to this debate, my thoughts: ...

Late to this debate, my thoughts:

Tensioning: Flex to get close, then for final adjustment, ring the spokes, but do so by plucking like a string, don't hammer on them with anything. Of course you...
Forum: Road Cycling
06-29-19, 01:58 PM
Replies: 145
Views: 34,537
Posted By Duragrouch

I'm a retrogrouch, I like horizontal top tubes,...

I'm a retrogrouch, I like horizontal top tubes, not compact frames. Not just for looks, a long seatpost puts more bending moment into the frame. My 20" wheel folder has an ultra-ultra-long seatpost,...
06-26-19, 10:35 PM
Replies: 170
Views: 13,306
Posted By Duragrouch

AAAAAaaaand we have a winner! Moment of zen. Like...

AAAAAaaaand we have a winner! Moment of zen. Like at the end of a Seinfeld episode when all the subplots merge into one. I salute you sir.
Forum: Road Cycling
06-26-19, 09:59 PM
Replies: 145
Views: 34,537
Posted By Duragrouch

Resilience means springiness, before the yield...

Resilience means springiness, before the yield point. In this case it would be about ductility (ability to plastically yield in tension, greatly, before fracturing) and malleability (ability to...
06-17-19, 11:10 PM
Replies: 170
Views: 13,306
Posted By Duragrouch

OP: My girlfriend, circa 1999, as I'm ogling a...

OP: My girlfriend, circa 1999, as I'm ogling a Cannondale adventure bike with hydraulic brakes: "A friend of mine who knows bikes says you shouldn't spend more than $500 on a bike unless it's going...
06-17-19, 05:37 PM
Replies: 161
Views: 14,737
Posted By Duragrouch

^Exactly. Plus, a police-quality bike is...

^Exactly.

Plus, a police-quality bike is about 10% of the cost of a police-quality motorcycle, even more savings when you factor in maintenance. Adding electric power to police bikes for short...
Forum: Road Cycling
06-17-19, 01:42 PM
Replies: 145
Views: 34,537
Posted By Duragrouch

Of course it's explained (if the rim is rigid...

Of course it's explained (if the rim is rigid enough and is impacted from the front); The rim is impacted and stops, unyielding due to rigidity. (Just the rim can be very rigid, and fully spoked it...
Forum: Road Cycling
06-17-19, 12:13 AM
Replies: 145
Views: 34,537
Posted By Duragrouch

Gotta be 40 years ago, a good local bike shop...

Gotta be 40 years ago, a good local bike shop told me that the (new at that time) deep section aluminum rims (I think Weinmann) were so rigid, a frontal impact would bend the (steel) fork before...
Forum: Road Cycling
06-15-19, 03:50 AM
Replies: 145
Views: 34,537
Posted By Duragrouch

(bold underline) +1. That may also seem to...

(bold underline) +1. That may also seem to indicate a frontal impact.
06-15-19, 03:40 AM
Replies: 235
Views: 26,439
Posted By Duragrouch

The link you posted is for Simple Green...

The link you posted is for Simple Green Australia:

https://simplegreen.com/downloads/SDS_EN-AU_SimpleGreenAllPurposeCleaner.pdf

The MSDS for Simple Green in the USA has different ingredients:
...
06-10-19, 09:58 PM
Replies: 102
Views: 8,660
Posted By Duragrouch

It's what a T-1000 would ride, or be, it's got...

It's what a T-1000 would ride, or be, it's got that flowing liquid look. "Say, that's a nice bike."
06-10-19, 09:52 PM
Replies: 102
Views: 8,660
Posted By Duragrouch

You may be right, given that it only required a...

You may be right, given that it only required a longer rivet at one end and lug plate at the other end of the rod, so would not have required changes to expensive casting or forging tooling for the...
06-10-19, 07:20 PM
Replies: 102
Views: 8,660
Posted By Duragrouch

I've never owned Campy gear but two things I have...

I've never owned Campy gear but two things I have seen that turned my crank (so to speak):
- Campy Delta brakes. Modern multi-pivots work better, but man are Deltas pretty and totally fit the form...
Forum: Road Cycling
06-10-19, 07:13 PM
Replies: 129
Views: 10,556
Posted By Duragrouch

Do not rule out the effect that you KNEW you were...

Do not rule out the effect that you KNEW you were riding on a carbon bike. This is the reason for "double blind" tests; Everything disguised, you don't know what bike you are riding on, anyone...
06-10-19, 07:06 PM
Replies: 235
Views: 26,439
Posted By Duragrouch

+10. Damn straight. I worked as an engineer where...

+10. Damn straight. I worked as an engineer where prototype techs used brake cleaner constantly to clean things with no gloves, one of then developed severe sensitivity and was transferred to other...
Forum: Road Cycling
06-10-19, 06:49 PM
Replies: 145
Views: 34,537
Posted By Duragrouch

OP: Close examination of the fracture surface...

OP: Close examination of the fracture surface will determine if the failure was rapid yield (wheel impacted something) or slow fatigue failure (possible design deficiency), or initiated by a fatigue...
06-08-19, 02:35 PM
Replies: 114
Views: 8,931
Posted By Duragrouch

I was going to cite the Merak as well! But the...

I was going to cite the Merak as well! But the Merak was different. The Corvette buttresses curved inward at the top (from top view) but in side and 3/4 rear view, somehow that was visible so it...
06-08-19, 01:24 AM
06-08-19, 01:22 AM
Replies: 114
Views: 8,931
Posted By Duragrouch

Yeah the estoril blue metallic is pretty classic...

Yeah the estoril blue metallic is pretty classic BMW. But the marina blue metallic just does it for me, it's the blue equivalent of Bianchi celeste green. Aaaaand, we're back to bicycles. See what I...
06-07-19, 12:25 PM
Replies: 114
Views: 8,931
Posted By Duragrouch

Wow, what a great deal, mileage vs. new cost!...

Wow, what a great deal, mileage vs. new cost! Can't quite tell if that is the paint I am thinking of. Not sure if it's the same blue as I saw the M's in, which was so cool. I hate light blues, but...
Forum: Road Cycling
06-07-19, 12:08 PM
Replies: 129
Views: 13,172
Posted By Duragrouch

Hardly. More like stacks of complex formulas in...

Hardly. More like stacks of complex formulas in very thick books. A good reference for just the formulas, not any theories or explanations, is Roark's Formula's for Stress and Strain, originally...
Showing results 1 to 50 of 126
 


 
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