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Search: Posts Made By: Jipe
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Forum: Folding Bikes
05-21-22, 01:47 AM
Replies: 30
Views: 685
Posted By Jipe

Birdy 2 = before 2015 had also disc brakes but...

Birdy 2 = before 2015 had also disc brakes but not on all models.

Since the Birdy 3, all Riese & Müller Birdy have Shimano hydraulic disc brakes.

Pacific Cycles mount different types of disc...
Forum: Folding Bikes
05-20-22, 02:36 PM
Replies: 30
Views: 685
Posted By Jipe

Many Kinetics upgraded Brompton have disc brakes.

Many Kinetics upgraded Brompton have disc brakes.
Forum: Folding Bikes
05-18-22, 09:33 AM
Replies: 30
Views: 685
Posted By Jipe

Sounds like if you had SRAM or AVID hydraulic...

Sounds like if you had SRAM or AVID hydraulic disc brakes!

I had AVID Code R and AVID Code 4 piston hydraulic disc brakes with exactly that problem and even worse: when it rubs and continue to...
Forum: Folding Bikes
05-15-22, 10:14 AM
Replies: 25
Views: 706
Posted By Jipe

To make a valid comparison of the benefit of...

To make a valid comparison of the benefit of different wheel diameters, all other parameters must remain the same: same bike, same type of tire. Comparing different bikes equipped with different type...
Forum: Folding Bikes
05-15-22, 09:51 AM
Replies: 25
Views: 706
Posted By Jipe

I fully agree with you, wide tires provide a big...

I fully agree with you, wide tires provide a big benefit as well in comfort than in riding resistance on bad surface.

Indeed, the maximum width in ETRTO406 on the Birdy is about 35mm, i.e. 1,38"....
Forum: Folding Bikes
05-15-22, 01:16 AM
Replies: 25
Views: 706
Posted By Jipe

The P-line is the previous superlight with a new...

The P-line is the previous superlight with a new titanium rear triangle made for the new 4 speed derailleur.

The main frame is the same as on all previous Brompton and current A-line + C-line and...
Forum: Folding Bikes
05-14-22, 03:11 PM
Replies: 25
Views: 706
Posted By Jipe

As several people know, the Birdy frame is able...

As several people know, the Birdy frame is able to accept 18" ETRTO355 wheels, 16" ETRTO349 wheels of the Brompton and Pakit (only 6mm smaller than the 18" ETRTO355) and 20" ETRTO406 wheels.

I...
Forum: Folding Bikes
05-14-22, 11:00 AM
Replies: 25
Views: 706
Posted By Jipe

I am sorry, but you are wrong: only the two sides...

I am sorry, but you are wrong: only the two sides are in contact with the frame and they are tilted so that they avoid any gap/play. The center flat part isn't in contact with the frame.
Forum: Folding Bikes
05-14-22, 04:21 AM
Replies: 25
Views: 706
Posted By Jipe

The clamp of the Brompton have a V shape , not U...

The clamp of the Brompton have a V shape , not U shape that provides an immunity against wear and tear, there is rigidity issue at all with the Brompton joints which isn't the case with several...
Forum: Folding Bikes
05-10-22, 04:19 AM
Replies: 17
Views: 601
Posted By Jipe

There is a reseller in the US selling the Birdy...

There is a reseller in the US selling the Birdy R20 11SP, it has been mentioned in the Birdy topic.
Forum: Folding Bikes
05-07-22, 04:49 PM
Replies: 17
Views: 601
Posted By Jipe

Pacific Cycles Birdy R20 11SP with Shutter...

Pacific Cycles Birdy R20 11SP with Shutter Precision hub dynamo front wheel (https://www.pacific-cycles.com/birdy/NEW-BIRDY-R20-11SP)

Or any Birdy modelwith a 20"/ETRTO406 hub dynamo wheelset.
Forum: Folding Bikes
05-06-22, 11:02 AM
Replies: 2,705
Views: 868,840
Posted By Jipe

I have also followed the project since the start...

I have also followed the project since the start of the Kickstarter campaign and I have to disagree with you on several points.

It was never said that its a very ambitious risky project and during...
Forum: Folding Bikes
05-05-22, 03:49 PM
Replies: 11
Views: 309
Posted By Jipe

For a folding bike were weight and strength are...

For a folding bike were weight and strength are important, carbon fenders is the best choice: lightweight, much stronger than plastic or thin aluminum.
Forum: Folding Bikes
05-05-22, 03:45 PM
Replies: 34
Views: 731
Posted By Jipe

The Greenspeed Scorcher 120 is from 2016 ...

The Greenspeed Scorcher 120 is from 2016

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulletin/1600x1088/schermafbeelding_2b2020_06_25_2bom_2b00_39_18_8cb29b95c08a09a511603de76f7e345be0eb41fd.png
Forum: Folding Bikes
05-05-22, 10:03 AM
Replies: 34
Views: 731
Posted By Jipe

You are right: ETRTO451 is a size for narrow road...

You are right: ETRTO451 is a size for narrow road tires while ETRTO406 was a size for wide tires both having a similar total diameter including tire, this is why both are labelled as 20" while the...
Forum: Folding Bikes
05-05-22, 02:57 AM
Replies: 34
Views: 731
Posted By Jipe

The Greenspeed Scorcher are among the fastest...

The Greenspeed Scorcher are among the fastest tires available in ETRTO406 (and also ETRTO349).

They were developed for racing trike by Greenspeed for their race trike which has ETRTO349 and...
Forum: Folding Bikes
05-04-22, 10:08 AM
Replies: 34
Views: 731
Posted By Jipe

If you look at the measurements of Bicycle...

If you look at the measurements of Bicycle Rolling Resistance (https://www.bicyclerollingresistance.com/tour-reviews/continental-contact-urban) they fully confirm what joey buzzard is writing: the...
Forum: Folding Bikes
05-04-22, 02:39 AM
Replies: 34
Views: 731
Posted By Jipe

It seems that the shipping costs of...

It seems that the shipping costs of https://www.bike24.de/p1360207.html?searchTerm=continental%20contact%20urban&source=SRP to US aren't too high (19.99€ for 2 tires).

The ETRTO406 Contact Urban...
Forum: Folding Bikes
05-03-22, 03:21 PM
Replies: 34
Views: 731
Posted By Jipe

If you are looking to a tire with very good...

If you are looking to a tire with very good rolling performances and very good puncture protection, I would recommend the Continental Contact Urban.

In 20"/ETRTO406, they exist in 32x406, 42x406...
Forum: Folding Bikes
05-02-22, 03:29 PM
Replies: 3
Views: 252
Posted By Jipe

Some people managed to mount the Continental...

Some people managed to mount the Continental Contact Urban Tubeless 32x406. They had to put more sealant than in a TL tire.

It should also work with the same tire in 35x349.

The Tubolito are...
Forum: Folding Bikes
04-28-22, 10:22 AM
Replies: 1
Views: 143
Posted By Jipe

Valerias has bags for the e-Brompton....

Valerias has bags for the e-Brompton. (https://www.valeriasbikeaccessories.com/en/41-e-brompton)
Forum: Folding Bikes
04-27-22, 10:42 AM
Replies: 4
Views: 333
Posted By Jipe

There are many difference black surface finish...

There are many difference black surface finish that have different properties, some are much stronger and last longer than others but at the end of the day all will wear and loose their black color...
Forum: Folding Bikes
04-26-22, 09:32 AM
Replies: 4
Views: 333
Posted By Jipe

Both the 3 speed and 6 speed use a Sturmey Archer...

Both the 3 speed and 6 speed use a Sturmey Archer internal gear hub with 3 speed but its not the same one.

The 3 speed use a BSR = Brompton Standard Range hub.

The 6 speed use the BWR =...
Forum: Folding Bikes
04-21-22, 03:18 PM
Replies: 5
Views: 502
Posted By Jipe

I would say low range. For this price, you...

I would say low range.

For this price, you will get classic center fold fully china made bike with mainly low end components maybe assembled in US or EU.
Forum: Folding Bikes
04-21-22, 09:48 AM
Replies: 1,649
Views: 553,627
Posted By Jipe

I tried to mount Vee Tire Co Crown Gem...

I tried to mount Vee Tire Co Crown Gem 57x355/2.25x18" and they are too big.

The usual knobbies for the Birdy are the Schwalbe Black Jack 47x355/1.9x18".
Forum: Folding Bikes
04-21-22, 05:03 AM
Replies: 1,649
Views: 553,627
Posted By Jipe

Thanks a lot for the information. So, 53t...

Thanks a lot for the information.

So, 53t front + 11-40t 11s works n the Birdy III. Then a 9-39t XCX+ cassette should also work for even more range (you have an XTR cassette 11-speed CS-M9001...
Forum: Folding Bikes
04-21-22, 03:03 AM
Replies: 1,649
Views: 553,627
Posted By Jipe

Thanks for he feedback. Can I ask you what...

Thanks for he feedback.

Can I ask you what model of Birdy you have and what is the size of the crankset chainring ?

I have now a 11s 9-34t cassette with a 50t chainring on my Birdy III and...
Forum: Folding Bikes
04-19-22, 02:54 AM
Replies: 19
Views: 5,260
Posted By Jipe

You can find the full specs on...

You can find the full specs on https://www.traditionalcycleshop.co.uk/blog/2019/9/6/the-new-moulton-cone

Transmission is indeed low en Sunrace crankset and SRAM derailleur. But its easy to find...
Forum: Folding Bikes
04-17-22, 04:23 PM
Replies: 19
Views: 5,260
Posted By Jipe

I think that the reason is that the Brompton...

I think that the reason is that the Brompton bikes are affordable but Brompton had no high end bikes (before the T-line) the "special editions" were higher end more expensive "dream bikes".

For...
Forum: Folding Bikes
04-16-22, 09:12 AM
Replies: 19
Views: 5,260
Posted By Jipe

Indeed, its an SST frame equipped with budget...

Indeed, its an SST frame equipped with budget components to come just under 2K... GBP !
Forum: Folding Bikes
04-15-22, 10:25 AM
Replies: 9
Views: 573
Posted By Jipe

Indeed, Wellgo has many clipless models in QRD =...

Indeed, Wellgo has many clipless models in QRD = quick release, SPD and road and also mixed platform one side/SPD the other side.

There is much more choice from Wellgo in QRD than MKS ESY. Be...
Forum: Folding Bikes
04-14-22, 03:44 AM
Replies: 10
Views: 1,097
Posted By Jipe

Strange, this shop seems to be able to sell the...

Strange, this shop seems to be able to sell the T-line while there are available only in limited numbers and sold out for the moment ?
Forum: Folding Bikes
04-11-22, 02:51 AM
Replies: 1,649
Views: 553,627
Posted By Jipe

This one is really adapted to the Birdy left...

This one is really adapted to the Birdy left dropout: its big hole is for the rear wheel quick release axle and the small hole with a bolt fits for a threaded hole in the Birdy dropout.
Forum: Folding Bikes
04-10-22, 03:40 PM
Replies: 1,649
Views: 553,627
Posted By Jipe

Riese & Müller Birdy are factory equipped with a...

Riese & Müller Birdy are factory equipped with a Minoura kickstand specially made for the Birdy: Birdy III kickstand...
Forum: Folding Bikes
04-09-22, 09:54 AM
Replies: 15
Views: 976
Posted By Jipe

Shimano Capreo is dead, its almost impossible to...

Shimano Capreo is dead, its almost impossible to find spare parts anymore.

Indeed, the Sunrace solution for small wheels is derived from Capreo but is not Capreo, its better with 10s and 11s...
Forum: Folding Bikes
04-08-22, 03:44 PM
Replies: 15
Views: 976
Posted By Jipe

Its also in the report: In The Highest Gear: ...

Its also in the report:
In The Highest Gear:


The 10t smallest cog is 0.3% slower than the usual 11t smallest cog.
Forum: Folding Bikes
04-08-22, 03:52 AM
Replies: 15
Views: 976
Posted By Jipe

The answer is in your link: yes 1x is less...

The answer is in your link: yes 1x is less efficient than 2x but the difference is small 0.5-0.6% while with a big gearbox like the Pinion the loss of efficiency is much bigger 2.6-2.9%. Note the...
Forum: Folding Bikes
04-07-22, 03:42 AM
Replies: 15
Views: 976
Posted By Jipe

I fully agree with this: starting at 10t or even...

I fully agree with this: starting at 10t or even 9t would have been better for small wheel bikes and give a wider gear inch range.

I have a Shimano Ultegra RD-R6800GS and RD-R-8000GS medium cage...
Forum: Folding Bikes
04-05-22, 03:07 AM
Replies: 4,019
Views: 854,465
Posted By Jipe

This is what was posted in the Origami Swift...

This is what was posted in the Origami Swift Thread.

40.5" is very short for a road bike. And the Wheelbase of both the Brompton and Birdy is bigger.
Forum: Folding Bikes
04-05-22, 03:04 AM
Replies: 6
Views: 554
Posted By Jipe

Since you have V-brakes, I guess you have a Birdy...

Since you have V-brakes, I guess you have a Birdy 1 or Birdy 2 and not a Birdy 3 since this one has no mounting points for V-brakes ?

On my Birdy Titanium, the wheel size limit is ETRTO406 with...
Forum: Folding Bikes
04-04-22, 03:04 PM
Replies: 1,649
Views: 553,627
Posted By Jipe

The wheel should not pull to any side when...

The wheel should not pull to any side when riding. This means there is something damaged in the frame or fork.

When the bike is still, the fork can go either side, there is normally no preference...
Forum: Folding Bikes
04-04-22, 03:01 PM
Replies: 4,019
Views: 854,465
Posted By Jipe

As discussed in the Origami Swift thread...

As discussed in the Origami Swift thread (https://www.bikeforums.net/folding-bikes/1247924-origami-swift-thoughts-ideas-new-version-classic-2.html), the Swift has a shorter wheelbase than other well...
Forum: Folding Bikes
04-04-22, 03:05 AM
Replies: 17
Views: 953
Posted By Jipe

Indeed, I agree with you, ride quality is very...

Indeed, I agree with you, ride quality is very important and this is the other advantage of the Birdy wrt. the Brompton: the Brompton feel a little twitchy the first time you use it while the Birdy...
Forum: Folding Bikes
04-03-22, 04:12 PM
Replies: 8
Views: 495
Posted By Jipe

The issue for mounting the Birdy tensionner on...

The issue for mounting the Birdy tensionner on the Brompton is the fact that the Birdy frame has only a round bottom bracket box while the Brompton has a square box added behind the round bottom...
Forum: Folding Bikes
04-03-22, 03:32 PM
Replies: 17
Views: 953
Posted By Jipe

I do not agree with you, the Birdy with...

I do not agree with you, the Birdy with derailleur or Rohloff (not the poor Nexus 8 version) is as fast as the fastest 20" folder if you mount the same fast tire on it. If you look at being fast,...
Forum: Folding Bikes
04-03-22, 05:06 AM
Replies: 17
Views: 953
Posted By Jipe

I don't agree with this latest statement: yes,...

I don't agree with this latest statement: yes, for the fold, Brompton and Birdy are close (Brompton is still smaller) but on ride quality, the Birdy is much better than the Brompton and as good as a...
Forum: Folding Bikes
04-01-22, 02:55 AM
Replies: 9
Views: 674
Posted By Jipe

Not all folding bikes are twitchy ! Its a...

Not all folding bikes are twitchy !

Its a little bit the case of the Brompton and some other the have a short wheelbase but there are many others that are as stable as any big wheels bikes.
Forum: Folding Bikes
04-01-22, 02:53 AM
Replies: 17
Views: 953
Posted By Jipe

With the bikes on your current list, it seems...

With the bikes on your current list, it seems that budget isn't an issue, so did you consider the Birdy with an H&H Brompton block adapter ?
Forum: Folding Bikes
03-30-22, 03:10 AM
Replies: 73
Views: 4,151
Posted By Jipe

The instability with a wide bag (Radical Design...

The instability with a wide bag (Radical Design Roltoptas that allow to transport things up to 50cm wide) also happen on the Brompton itself.

On my Birdy, mounted the Brompton block in two ways:...
Forum: Folding Bikes
03-29-22, 02:05 PM
Replies: 73
Views: 4,151
Posted By Jipe

I fully agree with you, the Brompton font block...

I fully agree with you, the Brompton font block is the best option. For people who want a font rack, its possible to just mount a rack on the block (either the removable frame of a .Brompton bag or...
Showing results 1 to 50 of 854
 


 
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