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Search: Posts Made By: Winfried
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Forum: Folding Bikes
03-03-21, 12:54 PM
Replies: 60
Views: 18,156
Posted By Winfried

No, it's the original that was "simply" cold-set...

No, it's the original that was "simply" cold-set (https://junik-hpv.de/arbeitsbereiche/brompton/).

But then, the tensioner has to tweaked as shown so that the idlers are moved inward to match the...
03-03-21, 11:47 AM
Replies: 28
Views: 367
Posted By Winfried

https://bicycles.stackexchange.com/questions/51203...

https://bicycles.stackexchange.com/questions/51203/is-white-spirit-a-too-aggressive-degreaser
Forum: Folding Bikes
03-03-21, 11:40 AM
Replies: 60
Views: 18,156
Posted By Winfried

It's a picture I found on the Net. It seems...

It's a picture I found on the Net.

It seems to be using the 1/3 speed Brompton tensioner, with some serious spacers added to remedy the chain line: The idlers are sitting between the wheel and the...
03-02-21, 11:53 PM
Replies: 11
Views: 211
Posted By Winfried

Even after shaving 12mm from the left side? ...

Even after shaving 12mm from the left side?

https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulletin/473x500/img_20210301_115400_edited_634481c001bd3e167aa66306b134e55a3064b19a.jpg...
03-02-21, 01:49 PM
Replies: 22
Views: 1,821
Posted By Winfried

Shimano Hub Gear Oil Port...

Shimano Hub Gear Oil Port (http://www.astounding.org.uk/ian/hubgear/oilport.html)

You could use this drain plug from Rohloff...
Forum: Folding Bikes
03-02-21, 01:29 PM
Replies: 60
Views: 18,156
Posted By Winfried

Reviving an old thread with a question about...

Reviving an old thread with a question about Brompton's 1/3 speed chain tensioner: How do you think the idlers (jockey wheels) were pushed inward to have a correct chain line and keep the idler...
03-02-21, 01:18 PM
Replies: 11
Views: 211
Posted By Winfried

It's how Shimano calls it: "Left Hand Dust Cap...

It's how Shimano calls it: "Left Hand Dust Cap Unit (Y-34R 98100).

Regardless, it then opens a new issue: Using that trick, the rim would now be way too far to the left :-/
03-01-21, 12:54 PM
Replies: 11
Views: 211
Posted By Winfried

Got a reply from gear hubs expert Aaron Goss...

Got a reply from gear hubs expert Aaron Goss (http://www.rideyourbike.com/): "It is fine. We have done it. Yes grease more often."
03-01-21, 11:47 AM
Replies: 11
Views: 211
Posted By Winfried

Another thing that must be addressed: After...

Another thing that must be addressed: After removing those parts on the left side, the hub will be moved to the left, so when cold-setting the frame, it should be pulled asymetrically so the right...
03-01-21, 11:44 AM
Replies: 11
Views: 211
Posted By Winfried

However, the BWR from Sturmey-Archer that powers...

However, the BWR from Sturmey-Archer that powers the six-speed Brompton has no dust cap, just a lock nut + cone:
...
03-01-21, 05:51 AM
Replies: 11
Views: 211
Posted By Winfried

[SOLVED] [Nexus 8] Riding without left hand-side dust cap?

Hello,

To stick a Shimano Nexus 8 gear hub into a Brompton (OLD 112mm), I'm thinking of removing the left hand-side "dust cap unit"...
02-28-21, 11:12 AM
Replies: 8
Views: 2,851
Posted By Winfried

It wasn't obvious, but I'll keep that in mind.

It wasn't obvious, but I'll keep that in mind.
02-27-21, 05:36 AM
Replies: 8
Views: 2,851
Posted By Winfried

It's gear hubs, not dynohubs. I might use...

It's gear hubs, not dynohubs.

I might use either an SG-8R31 or an SG-C6011.

Is there no part that could be used as dust cap, even if it's not originally meant for that purpose?
Forum: Folding Bikes
02-26-21, 03:27 PM
Replies: 12
Views: 389
Posted By Winfried

As a reference, using the B clamp and this front...

As a reference, using the B clamp and this front derailleur, both from Litepro, the fork rests (ie. meant to hover above the smallest chainring) at about 35mm from the inside of the clamp:...
02-26-21, 06:23 AM
Replies: 8
Views: 2,851
Posted By Winfried

I'll add a question to this thread, since it's...

I'll add a question to this thread, since it's close.

To reduce the width of a Nexus 8 from 132mm to 120mm to fit in a slimmer fork, you can remove the left-side dust cover.

I'm concered about...
Forum: Folding Bikes
02-22-21, 09:32 AM
Replies: 2
Views: 241
Posted By Winfried

Thanks for the infos. I vaguely remember having...

Thanks for the infos. I vaguely remember having struggled myself when trying to use standard gear.
Forum: Folding Bikes
02-22-21, 09:30 AM
Replies: 4
Views: 340
Posted By Winfried

BTW, Tern has two different racks that might work...

BTW, Tern has two different racks that might work on the Link

Rapid Transit (https://www.ternbicycles.com/ph/accessories/471/rapid-transit-rack-l)

Trolley Rack...
Forum: Folding Bikes
02-22-21, 07:14 AM
Replies: 2
Views: 241
Posted By Winfried

[Brompton] Making sense of gear/brake cables and housing

Hello,

On a Brompton, there are so many options when remplacing a cable and housing, depending on the year of production, brake (https://www.sjscycles.co.uk/cables-brake/?brand=brompton)/gear...
Forum: Folding Bikes
02-20-21, 12:51 PM
Replies: 4
Views: 493
Posted By Winfried

At 6+ feet, did you get the extended seat pillar...

At 6+ feet, did you get the extended seat pillar (https://www.sjscycles.co.uk/seat-posts/brompton-extended-seat-pillar/), the telescopic seatpost extender...
02-20-21, 12:25 PM
Replies: 17
Views: 288
Posted By Winfried

How does the differential work? Is the magic all...

How does the differential work? Is the magic all into that part?

Is a rear drive trike (delta) harder to move than a front drive (tadpole)?
...
02-20-21, 08:18 AM
Replies: 17
Views: 288
Posted By Winfried

Rather than steering, I'm concerned about the...

Rather than steering, I'm concerned about the effort required to spin the two front wheels (instead of just one).

Or maybe with "turning", you meant what I just wrote :-p
02-20-21, 07:56 AM
Replies: 17
Views: 288
Posted By Winfried

[trike] Two wheel-drive = more effort?

Hello,

Denmark's BellaBike trikes (http://bellabike.dk/) are unusual with their two front wheel-drive, and the rear wheel that steers.

Empty, the bike weighs about 40 kg/80 lbs. It comes with a...
02-19-21, 11:11 AM
Replies: 8
Views: 265
Posted By Winfried

I'll check it out.

I'll check it out.
02-19-21, 09:24 AM
Replies: 8
Views: 265
Posted By Winfried

Thanks. I'll tell him to check if the...

Thanks. I'll tell him to check if the controller+display can handle 48V.

Otherwise, maybe he could stick to what he has (36V) and just upgrade the battery to 20-30 amps ?
02-19-21, 08:48 AM
Replies: 33
Views: 1,547
Posted By Winfried

A French brand, but I'm sure there are others. ...

A French brand, but I'm sure there are others.

https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulletin/750x370/moustache_tandem_vae_1f2d264bea445949a8b51768b3a3df03ffa20e25.png...
02-19-21, 07:39 AM
Replies: 8
Views: 265
Posted By Winfried

Question Trike with Bafang BBS01 too slow

Hello,

Do you think a BBS01 (ie. 250W) powered by a 36V 17Ah battery is enough to ride a ~200kg/440lbs (rider + bike + load) trike with a Nexus 7 gear hub, 32/20T cogs, and 20" (406) wheels?
...
Forum: Folding Bikes
02-18-21, 08:46 AM
Replies: 10
Views: 1,824
Posted By Winfried

I had a seasoned professional do it. AFAICT,...

I had a seasoned professional do it.

AFAICT, he bent both the stays and the drop outs.
Forum: Folding Bikes
02-18-21, 07:52 AM
Replies: 1,502
Views: 404,346
Posted By Winfried

Besides the tube diameter, the adapter might...

Besides the tube diameter, the adapter might prevent folding, as the front+rear tubes are very close to each other.

If it does work it'd be a nice add-on for Strida riders....
Forum: Folding Bikes
02-18-21, 07:45 AM
Replies: 10
Views: 1,824
Posted By Winfried

Using the 8L+8R blue+green anti-rotation washers...

Using the 8L+8R blue+green anti-rotation washers (https://www.sheldonbrown.com/nexus-mech.html#washers), I notice the pulley arm of the Alfine 11 cassette joint is way too low when fit inside a...
Forum: Folding Bikes
02-18-21, 04:36 AM
Replies: 1,502
Views: 404,346
Posted By Winfried

https://www.valeriasbikeaccessories.com/en/accesso...

https://www.valeriasbikeaccessories.com/en/accessories-/402-front-carrier-block-universal-adapter-set-for-scooters-and-bicycles.html

Incidently, does it fit a Strida?
...
Forum: Folding Bikes
02-17-21, 01:57 PM
Replies: 46
Views: 3,228
Posted By Winfried

They look as puncture-resistant as Kojaks. ...

They look as puncture-resistant as Kojaks.

Is Primo a Japanese brand? I found no corporate site.

https://www.radicaldesign.com/tire-primo-comet-37-349-with-inner-tube-16
Forum: Folding Bikes
02-17-21, 12:43 PM
Replies: 46
Views: 3,228
Posted By Winfried

So, a pair of Schwalbe One...

So, a pair of Schwalbe One (https://andythousand.com/brompton-schwalbe-one-long-term-review/) and a pint of Stan's Tire Sealant (https://www.bike24.com/p236072.html) is a good, worry-free alternative...
02-17-21, 06:24 AM
Replies: 25
Views: 578
Posted By Winfried

All else being equal, rims on smaller wheels...

All else being equal, rims on smaller wheels obviously wear faster. Besides, those used by Brompton are on the cheap side.

I've already laced/weaved rims myself. Worth the effort, at least for...
02-16-21, 06:17 PM
Replies: 25
Views: 578
Posted By Winfried

Anything besides asphalt, nothing the Brompton...

Anything besides asphalt, nothing the Brompton was meant for, so I can't complain.

I doesn't take long for rims to look like this:...
Forum: Folding Bikes
02-16-21, 04:42 AM
Replies: 14
Views: 988
Posted By Winfried

There's a business opportunity right there.

There's a business opportunity right there.
Forum: Folding Bikes
02-16-21, 04:38 AM
Replies: 4
Views: 340
Posted By Winfried

What's the diff, you ask? ...

What's the diff, you ask?

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/776x1538/tern_carryon_popcover_7d202d9a437a913ff6cb9b409753f2a0f19db4db.png

I would get the CarryOn, as I used...
Forum: Folding Bikes
02-15-21, 11:28 AM
Replies: 62
Views: 31,549
Posted By Winfried

It might prevent the Strida from folding, though,...

It might prevent the Strida from folding, though, as the two tubes get very close.The only way is to give it a try.
02-15-21, 11:23 AM
Replies: 32
Views: 5,081
Posted By Winfried

What about drilling an oil drain hole? ...

What about drilling an oil drain hole?

https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulletin/500x1497/shimano_nexus_oil_drain_hole_320704ae5553f0cf4d795a1187035a4b977af027.png...
02-15-21, 06:29 AM
Replies: 25
Views: 578
Posted By Winfried

I read the brakes are the same, although the bike...

I read the brakes are the same, although the bike is heavier (→ braking isn't too good in the rain).



What about those?
https://www.aliexpress.com/item/1005001397867505.html

Dahon and other...
Forum: Folding Bikes
02-14-21, 03:49 PM
Replies: 46
Views: 3,228
Posted By Winfried

And here's what the part looks like: ...

And here's what the part looks like:

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/800x800/87949ce8_4d8f_4448_8730_f7d70bae7910_ac48b3966281df2a86ba6474086bd944bfb542e7.png...
02-14-21, 07:15 AM
Replies: 12
Views: 522
Posted By Winfried

They're the same internally.

They're the same internally.
Forum: Folding Bikes
02-14-21, 06:47 AM
Replies: 9
Views: 548
Posted By Winfried

An internal gear hub might be the solution.

An internal gear hub might be the solution.
02-14-21, 06:11 AM
Replies: 25
Views: 578
Posted By Winfried

I have to pull stronger than the hydraulic disk...

I have to pull stronger than the hydraulic disk brakes on my big bike, especially going downhill, and the rims wear too fast, especially when I ride off-road (crap getting under the brake pads).
...
02-13-21, 06:22 AM
Replies: 12
Views: 522
Posted By Winfried

The CJ-8S20 and the CJ-8S40 are the same: The S40...

The CJ-8S20 and the CJ-8S40 are the same: The S40 is just better protected, for use in "wet weather".
...
02-12-21, 04:31 PM
Replies: 25
Views: 578
Posted By Winfried

Thanks for the infos. I just happened on...

Thanks for the infos.

I just happened on this page (https://www.faltradritter.de/projekt-009/) about a recently (2019) modified Brompton with v-brakes, belt drive, and a Nexus gear hub:...
02-12-21, 10:37 AM
Replies: 25
Views: 578
Posted By Winfried

Thanks. Because they're a lot more expensive, and...

Thanks. Because they're a lot more expensive, and make for a wider folded bike (100mm vs. 74mm).

Besides, the disk is located on the left per usual… which isn't a good option for a Brompton...
02-12-21, 06:01 AM
Replies: 25
Views: 578
Posted By Winfried

[Brompton] Brazing disk mount or v-brakes studs?

Hello,

I have a question for people who have a good knowledge of building their own frames: Do you think brazing a disk mount or v-brake studs (+ adding a brake booster) on a Brompton fork —...
Forum: Folding Bikes
02-11-21, 04:57 AM
Replies: 10
Views: 1,824
Posted By Winfried

Good to know, thanks.

Good to know, thanks.
Forum: Folding Bikes
02-10-21, 04:37 PM
Replies: 10
Views: 1,824
Posted By Winfried

I had it done by an ol' timer :) But since...

I had it done by an ol' timer :)

But since it was a first, until I have a Nexus wheel in there, I can't be sure it works — chainline, tire and/or spokes rubbing against the frame, front wheel not...
Forum: Folding Bikes
02-10-21, 02:23 PM
Replies: 10
Views: 1,824
Posted By Winfried

I might stick an eight-speed Shimano Nexus hub...

I might stick an eight-speed Shimano Nexus hub (https://www.bike-components.de/en/Shimano/Nexus-SG-C6011-8V-8R-Internally-Geared-Hub-p52821/) into a Brompton.

Apparently, cogs for that hub have a...
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