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Search: Posts Made By: Duragrouch
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
06-10-24, 10:28 PM
Replies: 8
Views: 214
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: 12
Views: 171
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: 1,823
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: 12
Views: 171
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: 9
Views: 211
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: 33
Views: 1,305
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: 9
Views: 211
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: 2,295
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: 3,947
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: 2,295
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: 79
Views: 3,506
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: 79
Views: 3,506
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: 3,947
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: 79
Views: 3,506
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: 12
Views: 417
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: 9
Views: 211
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: 1,791
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...
Forum: Bicycle Mechanics
06-10-24, 12:17 AM
Replies: 15
Views: 338
Posted By Duragrouch

How sugared is your coffee?

How sugared is your coffee?
Forum: Classic and Vintage Sales
06-10-24, 12:15 AM
Replies: 12
Views: 417
Posted By Duragrouch

It's deja vu all over again. Same bike in 54 in...

It's deja vu all over again. Same bike in 54 in another thread.

Says rear wheel dishless; Does this mean zero spoke dish, thus frame is not symmetrical, and right dropout extends out further from...
Forum: Folding Bikes
06-10-24, 12:01 AM
Replies: 9
Views: 338
Posted By Duragrouch

Well, yes, that's a given. The problem isn't that...

Well, yes, that's a given. The problem isn't that per se, but that it has no low gears. Even a road triple with relatively wide road cassette was not low enough for my LWB 'bent when tour-loaded...
Forum: Classic & Vintage
06-09-24, 11:44 PM
Replies: 8
Views: 214
Posted By Duragrouch

Super classic look, I like. I'm not into C&V, I...

Super classic look, I like. I'm not into C&V, I just like classic looks in frame and crank, whatever the age.

Immaculate condition!

I noticed the bonded lug look, I thought perhaps early...
Forum: Folding Bikes
06-09-24, 11:30 PM
Replies: 9
Views: 338
Posted By Duragrouch

I saw a pic of that in another thread, B&W pic of...

I saw a pic of that in another thread, B&W pic of it being ridden, and was fascinated by its compactness without folding. Asked what bike but got no reply. Obviously the front wheel has pothole...
Forum: Bicycle Mechanics
06-09-24, 11:22 PM
Replies: 79
Views: 3,506
Posted By Duragrouch

I agree, that was my first thought, next step in...

I agree, that was my first thought, next step in lower gearage, unless they mind the spacing.

I can attest to that Tourney, and works surprisingly well for a $13 new RD. It was just the only one...
Forum: Bicycle Mechanics
06-09-24, 11:01 PM
Replies: 64
Views: 1,823
Posted By Duragrouch

I agree. Drawn spokes are not as hard or as...

I agree. Drawn spokes are not as hard or as strong as piano wire. But they have hardened and strengthened significantly (multiples) over their original un-cold-worked base material strength.

One...
Forum: Bicycle Mechanics
06-09-24, 08:44 PM
Replies: 64
Views: 1,823
Posted By Duragrouch

First, I'm not certain, not at all. But again, I...

First, I'm not certain, not at all. But again, I thought that spokes were stronger, not due to "hardening agents" as you say (which I do understand), but rather due to work hardening, which I think...
Forum: Living Car Free
06-09-24, 08:33 PM
Replies: 37
Views: 3,571
Posted By Duragrouch

New tunnel is in progress due to the Biden...

New tunnel is in progress due to the Biden administration:

https://www.bloomberg.com/news/articles/2023-08-10/gateway-tunnel-about-to-hit-big-milestone-shovels-in-the-ground

Space to park 600...
Forum: Bicycle Mechanics
06-09-24, 08:15 PM
Replies: 79
Views: 3,506
Posted By Duragrouch

Sounds good! If the chain doesn't skip under high...

Sounds good! If the chain doesn't skip under high load climbing, cassette may be fine. But if cassette is worn, you may want to replace soon to reduce wear on chain and then same on your nice new...
Forum: Living Car Free
06-09-24, 07:51 PM
Replies: 37
Views: 3,571
Posted By Duragrouch

Yeah me too, my walking distance is limited. But...

Yeah me too, my walking distance is limited. But I can bike 25 miles at the drop of a hat, zero prep, 50 back in the day, and more with prep. I'm deeply thankful that local stores let me wheel my...
Forum: Bicycle Mechanics
06-09-24, 07:46 PM
Replies: 64
Views: 1,823
Posted By Duragrouch

Apologies, I'm the offender on this that got it...

Apologies, I'm the offender on this that got it going in this direction.



I don't know for certain, but I think spokes may be fairly strong steel, not due to alloys, but from work hardening due...
Forum: Living Car Free
06-09-24, 07:01 PM
Replies: 37
Views: 3,571
Posted By Duragrouch

For Paris, or NYC? Here in the USA, the rental...

For Paris, or NYC? Here in the USA, the rental bikes are all stepover frames but strong and designed for minimal maintenance, many have hard foam in the tires and not air tubes. I've never rode them,...
Forum: Folding Bikes
06-09-24, 06:27 PM
Replies: 52
Views: 3,947
Posted By Duragrouch

Fantastic. Almost a year on mine and zero...

Fantastic. Almost a year on mine and zero loosening of the knot (8-bend) nor stretch of the line (kevlar, measures 1/8" diameter when stretched, a large loop so 2 strands of tension). Each ride I...
Forum: Touring
06-09-24, 06:09 PM
Replies: 28
Views: 639
Posted By Duragrouch

I've never priced the stuff. Big issue I think in...

I've never priced the stuff. Big issue I think in my state is big liquor taxes. Otherwise, given that white gas zoomed up to between $15-20 a gallon (and much higher if buying by the quart) and never...
Forum: Touring
06-09-24, 05:46 PM
Replies: 6
Views: 305
Posted By Duragrouch

(above) Yeah it looked to me like the road was...

(above) Yeah it looked to me like the road was built on fill, well above grade, for both lower slope and drainage. That can be fine, as long as the downlope angle of repose is sufficient to be stable...
Forum: Touring
06-09-24, 05:38 PM
Replies: 28
Views: 639
Posted By Duragrouch

Ah, good tip, that would be ethanol. Might find...

Ah, good tip, that would be ethanol. Might find same as "denatured alcohol" which according to wiki is "... and denatured rectified spirit (https://en.m.wikipedia.org/wiki/Rectified_spirit) is...
Forum: Touring
06-09-24, 04:55 AM
Replies: 28
Views: 639
Posted By Duragrouch

Well, not really, as MSR stoves are designed to...

Well, not really, as MSR stoves are designed to burn a big variety of petro and biofuels, *except* alcohol, as the air/fuel ratio is much different, more like 8:1 versus 14.7:1 for gasoline/petrol. A...
Forum: Touring
06-09-24, 04:49 AM
Replies: 28
Views: 639
Posted By Duragrouch

Looking up, my guess is you are using HEET...

Looking up, my guess is you are using HEET product that removes water from gasoline (aka "dry gas") that used to be methanol but I think now is isopropyl alcohol? DON'T use a typical HDPE Nalgene...
Forum: Touring
06-09-24, 04:11 AM
Replies: 6
Views: 305
Posted By Duragrouch

If it's the video I saw in headlines today, the...

If it's the video I saw in headlines today, the landslide didn't cover the road (which could be cleared), it was from under the road which completely dropped away. I hope nobody hurt or killed. Much...
Forum: Folding Bikes
06-09-24, 03:51 AM
Replies: 9
Views: 338
Posted By Duragrouch

Sakai... one of two major centers of quality...

Sakai... one of two major centers of quality knife production in Japan (the other being Seki), as I understand it. Hmm, both that and the Shimano museum, that would be a great city tour for me, if...
Forum: Folding Bikes
06-09-24, 03:15 AM
Replies: 10
Views: 416
Posted By Duragrouch

Mines 20", just your garden-variety Speed before...

Mines 20", just your garden-variety Speed before I equipped it like a Bike Friday. The original racks are perfectly solid, and can hold something on top, just too far forward for heel clearance with...
Forum: For Sale
06-09-24, 01:38 AM
Replies: 11
Views: 425
Posted By Duragrouch

I don't have the bandwidth to currently do C&V,...

I don't have the bandwidth to currently do C&V, but this turns my crank on so many levels; Lugged frame with double-butted chrome moly, beautiful crank styling, half-step+granny, nice color, even...
Forum: Folding Bikes
06-09-24, 01:14 AM
Replies: 9
Views: 374
Posted By Duragrouch

Hey Ron (or anyone else), I was looking online at...

Hey Ron (or anyone else), I was looking online at various handleposts and ran across this diagram, referencing a Dahon Radius V Comfort lower handlepost 09; Have you ever seen this and know how it...
Forum: Classic & Vintage
06-08-24, 11:58 PM
Replies: 7
Views: 411
Posted By Duragrouch

Does it ride nice (more cush) while still being...

Does it ride nice (more cush) while still being stiff in torsion when hammering the pedals?
Forum: Bicycle Mechanics
06-08-24, 10:56 PM
Replies: 36
Views: 1,016
Posted By Duragrouch

+1. I got that joke/fact.

+1. I got that joke/fact.
Forum: Road Cycling
06-08-24, 10:44 PM
Replies: 28
Views: 746
Posted By Duragrouch

Like I said, I have a lame non-modern drivetrain....

Like I said, I have a lame non-modern drivetrain. But in general:
- downshift early; you can always upshift
- reef early; you can always unreef
- always be ahead of the power curve
- never get...
Forum: Folding Bikes
06-08-24, 10:15 PM
Replies: 31
Views: 2,062
Posted By Duragrouch

(above) Yep. Same with Litepro brompnots, the...

(above) Yep. Same with Litepro brompnots, the shipping kills it. Fortunately I don't need a different folder right now, but if I toured Asia, I'd fly there sans bike and bring one back.
Forum: Folding Bikes
06-08-24, 10:11 PM
Replies: 9
Views: 374
Posted By Duragrouch

(aliexpress above) Nice looking handleposts, I...

(aliexpress above) Nice looking handleposts, I like that they have one-piece ones, a bit more rigid and I think better in durability in the long run versus telescoping posts. Also nice, come in...
Forum: Folding Bikes
06-08-24, 01:21 AM
Replies: 10
Views: 416
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: 186
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: 28
Views: 746
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: 54
Views: 1,948
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...
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