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Search: Posts Made By: Duragrouch
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Forum: Folding Bikes
03-11-24, 08:18 PM
Replies: 50
Views: 2,275
Posted By Duragrouch

From what I've seen (only in pics), the quality...

From what I've seen (only in pics), the quality looks good, if I recall, CNC-machined from 7075-T6. From a design standpoint, if it was significantly lighter than say the top road-race cranks (same...
Forum: Folding Bikes
03-09-24, 07:52 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

(above) Good to know! That bike gearing...

(above) Good to know!

That bike gearing looks like half-step without granny. :)
Forum: Folding Bikes
03-09-24, 02:04 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

The crank is by far the worst quality part on the...

The crank is by far the worst quality part on the lower-end Dahons and Terns, steel ring permanently swaged onto the right arm. Mine is old enough to have cone-and-cup bottom bracket bearings, not...
Forum: Folding Bikes
03-09-24, 12:25 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

That too. I'm wondering about that. I read a...

That too. I'm wondering about that. I read a report in Bicycle Quarterly (expensive! I read for free at my library) that fatter tires are not necessarily slower, depending on surface, however they...
Forum: Folding Bikes
03-08-24, 09:24 PM
Replies: 50
Views: 2,275
Posted By Duragrouch

Oh I think if you have a suspension fork, there...

Oh I think if you have a suspension fork, there would be zero need for a suspension stem, the fork will have more travel, plus damping. I'm trying to think if a suspension stem could respond better...
Forum: Folding Bikes
03-08-24, 05:32 PM
Replies: 50
Views: 2,275
Posted By Duragrouch

(above) Yeah I know it'll add weight, it doesn't...

(above) Yeah I know it'll add weight, it doesn't look light, it has to take a lot of stress, and it's a critical component so needs to have some safety margin, but thanks for the warning. My bigger...
Forum: Folding Bikes
03-08-24, 05:22 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

Looks like a good design, does not rotate the bar...

Looks like a good design, does not rotate the bar with suspension travel like some designs. Comes with 4 springs, but as they get stiffer, the flat spring wire gets thicker, so I wonder if travel is...
Forum: Folding Bikes
03-08-24, 04:41 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

I also think that is a simpler approach, and...

I also think that is a simpler approach, and provides more knee clearance when climbing out of the saddle. But I may be looking for a riser bar (what I called above a stempost, made up just to...
Forum: Folding Bikes
03-08-24, 03:10 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

Yes, putting the bars further forward helps...

Yes, putting the bars further forward helps stability, both by putting that mass further forward of the steering axis, and your hand force causing a more "centering" feel; My handlebars are centered...
Forum: Folding Bikes
03-07-24, 11:58 PM
Replies: 50
Views: 2,275
Posted By Duragrouch

If the handlebar clamp opens up like a clamshell...

If the handlebar clamp opens up like a clamshell so drop bars easily removable, my guess is it should fit that way, if not fully assembled.

I have an early Dahon stem without a clamshell clamp, so...
Forum: Folding Bikes
01-09-24, 04:05 AM
Replies: 50
Views: 2,275
Posted By Duragrouch

I agree with others, and strongly recommend...

I agree with others, and strongly recommend replacing a square taper bottom bracket, with a hollowtech II style crank (but NOT Shimano, there is a recall on many, come apart, a spider bonded (glued,...
Showing results 1 to 11 of 11


 
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