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Search: Posts Made By: 2_i
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Forum: Folding Bikes
08-09-22, 02:40 PM
Replies: 16
Views: 219
Posted By 2_i

I surely must be very thick as I am not getting...

I surely must be very thick as I am not getting how I am supposed to know that my solution is about to "be very specific to geographic location".
Forum: Folding Bikes
08-09-22, 02:25 PM
Replies: 16
Views: 219
Posted By 2_i

You ask for people to know what happens on the...

You ask for people to know what happens on the other side of the world. I am not sure how you imagine that they are supposed to achieve that.
Forum: Folding Bikes
08-07-22, 02:05 PM
Replies: 14
Views: 483
Posted By 2_i

[/list] Very good points :thumb: ...

[/list]
Very good points :thumb:



Let's take the current trip to the Czech Republic. One out of the 3 folders got its rear rack shoved when traveling as checked luggage by air, which locked...
Forum: Folding Bikes
08-06-22, 03:12 PM
Replies: 14
Views: 483
Posted By 2_i

Puzzled by how little it took for the gears for S...

Puzzled by how little it took for the gears for S Korea, I checked the 4 Rivers trail and it indeed seems mostly flat, but there is one peak in the middle. My biking experience with S Korea was very...
Forum: Folding Bikes
08-06-22, 01:36 PM
Replies: 13
Views: 382
Posted By 2_i

So what about the wear on that one-piece...

So what about the wear on that one-piece cassette? Are you using your Brompton so little that you do not need to care? Are you swapping the cassette each time you swap the chain or are you waiting...
Forum: Folding Bikes
08-06-22, 03:13 AM
Replies: 14
Views: 483
Posted By 2_i

I am very impressed! I do not want to detract...

I am very impressed! I do not want to detract from the main topic, but could you briefly comment on adequacy of the gearing for the challenges you obviously faced and on any tools you carried along...
Forum: Folding Bikes
08-03-22, 04:51 AM
Replies: 2,161
Views: 579,348
Posted By 2_i

That cheaper Litepro adapter may be good enough...

That cheaper Litepro adapter may be good enough to get mounted and feature in a photo, but is unusable trash over longer term. The more expensive Litepro and Ridea adapters are still questionable...
Forum: Folding Bikes
08-02-22, 01:19 PM
Replies: 4
Views: 173
Posted By 2_i

The funny thing is that I was coming from the...

The funny thing is that I was coming from the other direction and trying to see whether I could fit the Dahon Neos derailleur onto Brompton. In the meantime, I got the Brompton pusher to work well...
07-31-22, 01:48 PM
Replies: 12
Views: 289
Posted By 2_i

Old-style bottle dynamos are inefficient and...

Old-style bottle dynamos are inefficient and produce quite a bit of resistance when working. The incandescent light you plan to use is inefficient too. This looks like an electric assist bicycle. Is...
07-30-22, 01:23 PM
Replies: 12
Views: 289
Posted By 2_i

So are you trying to use this on an electric...

So are you trying to use this on an electric bike? Are you sure that you are testing the dynamos correctly? While the dynamos are not overly robust devices, finding two dead one after another sounds...
07-30-22, 05:20 AM
Replies: 12
Views: 289
Posted By 2_i

Can you connect a 6V source to those connectors...

Can you connect a 6V source to those connectors to see whether the light comes on? Maybe the light came originally with some proprietary connector that is not there anymore and you need to figure out...
Forum: Commuting
07-28-22, 03:16 PM
Replies: 2
Views: 179
Posted By 2_i

Part of the poor brake performance in folders,...

Part of the poor brake performance in folders, particularly in the rear, is due to long and awkward routing of brake cables, as they have to play along with the folding. I got an improvement in the...
Forum: Folding Bikes
07-25-22, 11:57 AM
Replies: 10
Views: 569
Posted By 2_i

No, the family member needs the bike in travel...

No, the family member needs the bike in travel starting this week. This and the REI being 1h away made it impractical to engage in any in-person iterations with them. Other than the bikes, they do...
Forum: Folding Bikes
07-23-22, 07:45 PM
Replies: 10
Views: 569
Posted By 2_i

We have been members forever too, longer than...

We have been members forever too, longer than many other things lasted for me, including cycling. Every once in a while I have a chance to visit their flagship store. However in our area their stores...
Forum: Folding Bikes
07-23-22, 12:15 PM
Replies: 10
Views: 569
Posted By 2_i

US REI Brompton purchase: not impressed

I stepped in to assist a family member with a Brompton purchase. The configuration that was supposedly available at an REI store, ~1h away, was significantly closer to the one we aimed at than the...
Forum: Commuting
07-20-22, 05:21 AM
Replies: 13
Views: 413
Posted By 2_i

I rode B67 on a daily basis for half a year...

I rode B67 on a daily basis for half a year waiting for the miracle of breaking in. I applied Proofide repeatedly. I stayed just as uncomfortable after months as at the beginning. Finally, it...
Forum: Commuting
07-19-22, 05:47 PM
Replies: 13
Views: 413
Posted By 2_i

I hated it wholeheartedly, but then I hated...

I hated it wholeheartedly, but then I hated leather Brooks too. I may be too light for such saddles.
07-19-22, 01:48 PM
Replies: 3
Views: 169
Posted By 2_i

Worn rings will cause accelerated wear of the...

Worn rings will cause accelerated wear of the chain which can cascade over to the cogs. In the case of 3 rings, it is common to use steel for the smallest ring, to slow down the wear. The rings work...
Forum: Folding Bikes
07-17-22, 09:24 PM
Replies: 6
Views: 179
Posted By 2_i

My first brazing project was to make a mount...

My first brazing project was to make a mount where I brazed together 2 steel strips. Normally I would rivet, but one of the strips was thin and narrow so I felt that the riveting would not be secure....
Forum: Folding Bikes
07-17-22, 06:34 PM
Replies: 6
Views: 179
Posted By 2_i

I bought a piece of SS 1.5" tube, 0.065"...

I bought a piece of SS 1.5" tube, 0.065" thickness. I bought 2 SS seatpost clamps, an SS derailleur boss and an SS cable stop.

First I measured the geometry and made a 1:1 drawing, deciding the...
Forum: Folding Bikes
07-17-22, 03:51 PM
Replies: 6
Views: 179
Posted By 2_i

I am eager to test myself and use it to...

I am eager to test myself and use it to streamline my front drivetrain. However, I also have a trip in the company of Brompton scheduled for 10 days from now and I do not want to throw something not...
Forum: Folding Bikes
07-17-22, 02:18 PM
Replies: 11
Views: 706
Posted By 2_i

At this point I just went back to the original...

At this point I just went back to the original Brompton spring, just shortened by a quarter turn, I think, for the extra pretensioning. Thanks for the suggestion, though, I may look at these in the...
Forum: Folding Bikes
07-17-22, 12:49 PM
Replies: 6
Views: 179
Posted By 2_i

Steel Front Derailleur Adapter

My feelings about alu front derailleur adapters, typically off AliExpress, have been mixed, to say the least, even when I made some of them work. I had one solid steel adapter for Brompton, ...
Forum: Folding Bikes
07-17-22, 12:10 PM
Replies: 11
Views: 706
Posted By 2_i

Usually we highlight our successes, but failures...

Usually we highlight our successes, but failures can be instructive too. Below is the Litepro spring, No. 3 above, pulled out from the tensioner few months after that spring was put there...
Forum: Commuting
07-16-22, 11:02 PM
Replies: 8
Views: 355
Posted By 2_i

I tried shoe covers and must have a couple of...

I tried shoe covers and must have a couple of pairs from different manufacturers somewhere around. I found them too cumbersome in practical use, awkward to put on and take off, and awkward to wear,...
07-16-22, 05:38 PM
Replies: 4
Views: 249
Posted By 2_i

How old were the grips? Soft rubber of the grips...

How old were the grips? Soft rubber of the grips eventually deteriorates with age, stains hands, etc. People ride all kinds of bikes at places where >40C temperatures are a plain everyday occurrence,...
Forum: Folding Bikes
07-14-22, 07:55 PM
Replies: 14
Views: 485
Posted By 2_i

I looked at something along that line that a...

I looked at something along that line that a friend got herself. As far as I could tell, the first time some essential proprietary component breaks, and there were quite a few of those, the adventure...
Forum: Folding Bikes
07-14-22, 02:23 PM
Replies: 9
Views: 391
Posted By 2_i

I'd say the best method would be to buy a race...

I'd say the best method would be to buy a race bike.
07-09-22, 10:00 PM
Replies: 17
Views: 406
Posted By 2_i

One more triplizer brand is Willow, not in there...

One more triplizer brand is Willow, not in there in the pipeline either. The lack of availability suggests that the demand dropped so much that there was no point persisting with production. An issue...
07-09-22, 08:08 AM
Replies: 17
Views: 406
Posted By 2_i

If you decide to go ahead, test your procedure on...

If you decide to go ahead, test your procedure on a piece of alu bar. In my experience threading alu can be way more challenging than threading steel, given how alu is fragile relative to the tap....
07-07-22, 03:37 PM
Replies: 32
Views: 632
Posted By 2_i

I looked over other manufacturers and, when they...

I looked over other manufacturers and, when they spell out the shelf life, it is between 1 and 3 years. Squishy does not mean usable - that polymerized glut I ran into was quite squishy but would not...
07-07-22, 12:24 PM
Replies: 32
Views: 632
Posted By 2_i

My previous can had a legible production date...

My previous can had a legible production date printed on the bottom. However, on the new can I got you could only see a row of dots that looked like a remainder of what was supposed to be printed...
07-07-22, 10:39 AM
Replies: 32
Views: 632
Posted By 2_i

OK, I heard back from Rema. I will first...

OK, I heard back from Rema. I will first summarize what they said and then draw my own conclusions.

The official shelf life of the Vulcanizing Fluid is 24 months. Anecdotal information from...
07-07-22, 07:13 AM
Replies: 36
Views: 1,116
Posted By 2_i

The majority of wheels ridden with rim brakes...

The majority of wheels ridden with rim brakes never get to the point where they need to be replaced due to the rim wear. Most often they get replaced/rebuilt due to some mishap that mangles the wheel...
07-06-22, 05:50 PM
Replies: 32
Views: 632
Posted By 2_i

I asked Rema about the shelf life of their...

I asked Rema about the shelf life of their Vulcanizing Fluid. They took my data and promised to have someone with expertise to get back to me. We will see where this goes.
07-06-22, 09:46 AM
Replies: 32
Views: 632
Posted By 2_i

The Rema fluid that polymerized after 6 years...

The Rema fluid that polymerized after 6 years turned into a glut that would not dissolve even after 5 weeks of immersion in a solvent. The fluid polymerized irreversibly at about the same time in a...
07-06-22, 06:32 AM
Replies: 32
Views: 632
Posted By 2_i

You can dilute Rema Tip Top Fluid with naphta...

You can dilute Rema Tip Top Fluid with naphta available commercially, e.g., as camping white gas. Also Heptane/Bestine available in art supply store works. Finally, trichloroethylene, used in dry...
07-05-22, 01:53 PM
Replies: 36
Views: 1,116
Posted By 2_i

The play developed in the additional midway...

The play developed in the additional midway pivots. The outcome was in the pads grabbing the wheel unless you loosened the cable so much that braking became impossible. Rival arms indeed rotate on...
07-05-22, 10:04 AM
Replies: 36
Views: 1,116
Posted By 2_i

I have been trying out recently the Avid Arch...

I have been trying out recently the Avid Arch "only" Rivals, but am still on the fence with them. I read warnings about them quickly developing play. By now I could only get used ones, and one set I...
Forum: Folding Bikes
07-05-22, 06:53 AM
Replies: 3
Views: 205
Posted By 2_i

This sounds very interesting. Is there a chance...

This sounds very interesting. Is there a chance for the photos? While you mention the diameter of the seat tube as a problem, in my perception there is more, if not way more depending on the bicycle...
Forum: Folding Bikes
07-04-22, 03:11 PM
Replies: 2,161
Views: 579,348
Posted By 2_i

You want the roller wheels to be placed...

You want the roller wheels to be placed symmetrically with respect to the center of mass of the folded bike. That center shifts to the right of the drive side when you fold over the top of Brompton,...
Forum: Folding Bikes
07-04-22, 08:49 AM
Replies: 2,161
Views: 579,348
Posted By 2_i

This looks like a stock stainless bolt with a...

This looks like a stock stainless bolt with a button head. I would take the bolt to a hardware vendor and get an identical one. Button heads may be less popular in some countries than other and...
Forum: Folding Bikes
07-03-22, 05:02 PM
Replies: 2,161
Views: 579,348
Posted By 2_i

To replace the bolt you need to take it out. Can...

To replace the bolt you need to take it out. Can you do it? Do you need to straighten it out, at least partially, before progressing? By eye it looks like M6.
Forum: Folding Bikes
07-03-22, 12:09 PM
Replies: 12
Views: 2,542
Posted By 2_i

The Vincita wheels are detachable too....

The Vincita wheels are detachable too. Incidentally, a case without wheels may be equipped with detachable ones in many cases. However, such DIY can be costly, rising overall cost by up to 50%,...
Forum: Folding Bikes
07-03-22, 10:43 AM
Replies: 12
Views: 2,542
Posted By 2_i

The SKB case does not seem to have any wheels,...

The SKB case does not seem to have any wheels, which makes it cumbersome to handle particularly at this day and age. I think that 2 wheels in the B&W are already a serious flaw. However the Foldon...
Forum: Folding Bikes
07-01-22, 06:07 PM
Replies: 14
Views: 595
Posted By 2_i

Yes, I think so. However another factor in...

Yes, I think so. However another factor in folding bikes is of trying to keep the stem and handlebars confined to a plane, to minimize the folded size. However, some 3D form matching another shape...
Forum: Folding Bikes
07-01-22, 04:22 PM
Replies: 14
Views: 595
Posted By 2_i

The trail allows the front wheel to align with...

The trail allows the front wheel to align with the direction of motion without your intervention. The rotational inertia helps the wheel maintain the orientation of the axle. I.e., in the trail there...
Forum: Folding Bikes
07-01-22, 10:02 AM
Replies: 14
Views: 595
Posted By 2_i

For the fixed head tube angle, the trail changes...

For the fixed head tube angle, the trail changes as the ratio of wheel diameters. The trail for Brompton I believe is about 35mm and so you end up with 35*20/16=44mm, still short but closer to the...
06-30-22, 01:35 PM
Replies: 36
Views: 1,116
Posted By 2_i

As we know from practice, brakes get serious...

As we know from practice, brakes get serious sprays from tires in rough weather. I once had a chain tensioner positioned close to the ground, running on ball bearings. After about a year after...
06-30-22, 01:11 PM
Replies: 36
Views: 1,116
Posted By 2_i

These brakes have longer arms. The performance...

These brakes have longer arms. The performance difference that you experience may be more due to that length (https://www.gravelbike.com/v-brake-arm-lengths/) than bearings. There is a down side to...
Showing results 1 to 50 of 1000
 


 
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