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Search: Posts Made By: Jipe
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Forum: Folding Bikes
08-08-22, 01:12 AM
Replies: 1,319
Views: 375,099
Posted By Jipe

These are BMX tires, not road tires ! And as...

These are BMX tires, not road tires !

And as always, low price seems your only requirement !
Forum: Folding Bikes
08-07-22, 09:52 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The derailleur cage is completely folded which is...

The derailleur cage is completely folded which is OK.

I really think that the chain is too long for the Birdy.

If you still have the original chain, you can count the number of links of both...
Forum: Folding Bikes
08-07-22, 05:04 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

No, its too much slack. Do you have a...

No, its too much slack.

Do you have a picture including the rear derailleur when folded ?

The chain isn't the original one, could it be that its too long, longer than the factory chain was?
Forum: Folding Bikes
08-07-22, 03:54 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

35x406 without mudguards (Continental Contact...

35x406 without mudguards (Continental Contact Urban 32x406 on 25mm inside rims = 35mm measured width).

Pacific Cycles deliver the R20 11SP with Panaracer Minits Tough 32x406.

I didn't had any...
Forum: Folding Bikes
08-06-22, 09:31 AM
Replies: 13
Views: 343
Posted By Jipe

On my Brompton, I enlarged the original titanium...

On my Brompton, I enlarged the original titanium triangle of my superlight Brompton and installed a Rohloff what solved the problem without adding weight compared to the original 6s BWR Brompton...
Forum: Folding Bikes
08-06-22, 05:32 AM
Replies: 13
Views: 343
Posted By Jipe

Its just one option. There are several...

Its just one option.

There are several brands/vendors selling similar things.

And indeed, different versions for T-line, P-line and also for C-line and previous years Brompton.

I am now...
Forum: Folding Bikes
08-06-22, 02:46 AM
Replies: 13
Views: 343
Posted By Jipe

There are already some upgrade kits for the...

There are already some upgrade kits for the P-line (https://www.fantastic4toys.com/products/thx4ride-7-speed-kit-set-for-brompton-bicycle-t-line) the question is (as always with these third party...
Forum: Folding Bikes
08-06-22, 02:36 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The same folding problem happens as shown on the...

The same folding problem happens as shown on the picture when the chain is not on the smallest cog.

Can you check if its not the chain on the cog that prevent to fold enough ?

For the belt...
Forum: Folding Bikes
08-05-22, 04:12 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The benefit of the belt is limited, current belt...

The benefit of the belt is limited, current belt last not as long as older ones.

And belt have a lower efficiency than a chain.

Last point, there are no small cogs for belt like for a chain...
Forum: Folding Bikes
08-05-22, 12:31 AM
Replies: 13
Views: 343
Posted By Jipe

None of these bike provide the small folded size...

None of these bike provide the small folded size of the Brompton.
Forum: Folding Bikes
08-04-22, 06:51 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Its because like me, you changed the tires from...

Its because like me, you changed the tires from 40mm wide to 50mm wide (Keuzotter gives also 2.21 for 52x32 with 40mm tires) and for this reason, I moved to a 50t chainring.

With the original 9-32...
Forum: Folding Bikes
08-04-22, 06:31 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

As I wrote, 52x11 on the Birdy is only 6.76m...

As I wrote, 52x11 on the Birdy is only 6.76m which is very short.

The Riese & Müller Birdy has 7.86-2.21m with a 9-32t cassette, a Brompton 6s with BWR 7.95-2.63m.

Neither the Birdy nor the...
Forum: Folding Bikes
08-04-22, 06:09 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The problem is that a cassette that starts with a...

The problem is that a cassette that starts with a smallest cog of 11t is not good for small wheel bikes, the gear inch it gives with a usual 52 or 53t chainring and 52/53x11 is too short and the big...
Forum: Folding Bikes
08-04-22, 04:12 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I liked a lot previous Shimano drivetrains that...

I liked a lot previous Shimano drivetrains that work perfectly well and are very reliable but not the current ones like Di2 only road 12s which are incompatible with MTB 12s mechanical only which...
Forum: Folding Bikes
08-04-22, 02:36 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

But you seem to buy many things on Aliexpress...

But you seem to buy many things on Aliexpress which is also not local availability, can't you buy those XDR parts in Asia like you do for parts coming from Aliexpress ?

Is SRAM not available in...
Forum: Folding Bikes
08-04-22, 02:32 AM
Replies: 14
Views: 456
Posted By Jipe

The drawback of this front mounting solution is...

The drawback of this front mounting solution is the weight limit of 7kg (which is the total front weight, including the weight of the bag).

For the Brompton front block its 10kg what makes a...
Forum: Folding Bikes
08-04-22, 02:20 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Riese & Müller mount a Shimano RD-T610-SGS...

Riese & Müller mount a Shimano RD-T610-SGS derailleur on the Birdy which is OK because 36t is about the maximum possible on the Birdy 3.

The stopper for the rear arm folding is circled in red in...
Forum: Folding Bikes
08-03-22, 03:43 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

The stoppers on my Ti Birdy from Pacific Cycles...

The stoppers on my Ti Birdy from Pacific Cycles are the same as on the Birdy 3 but with a completely different adjustment, much longer out on the Ti Birdy.

There are two stoppers on the Birdy, one...
Forum: Folding Bikes
08-03-22, 03:15 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

The stopper was factory adjusted for a smallest...

The stopper was factory adjusted for a smallest 9t cog while you now have a bigger 11t, this could explain the problem.
Forum: Folding Bikes
08-03-22, 02:49 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

Its adjustable like on the Brompton. But yours...

Its adjustable like on the Brompton. But yours seems at the minimum.

Now, to fully fold the rear on Birdy with a cassette, the chain must absolutely be on the smallest cog.
Forum: Folding Bikes
08-03-22, 09:54 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I am in Belgium, Brussels has a lot of steep...

I am in Belgium, Brussels has a lot of steep hills.

The frame of the Birdy 2 is different from the one of the Birdy 3 and I am not sure this was installed by R&M.

If you look at Pacific Cycles...
Forum: Folding Bikes
08-03-22, 09:25 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I do not know any Birdy 3 factory equipped with a...

I do not know any Birdy 3 factory equipped with a FD and a Ridea adapter ???

There was long time ago a R&M Birdy with a dropbar and FD but I think it was a Birdy 2 and not with a Ridea adapter ?
...
Forum: Folding Bikes
08-03-22, 04:37 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Looks very similar to the Ridea one ! Ridea...

Looks very similar to the Ridea one !

Ridea parts are difficult to find.
Forum: Folding Bikes
08-03-22, 04:04 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Are you sure that its the same Litepro adapter on...

Are you sure that its the same Litepro adapter on FB and Aliexpress ?
Forum: Folding Bikes
08-03-22, 03:11 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Its impossible to know tht it will fit on the...

Its impossible to know tht it will fit on the Birdy without having tried !

If you compare the picture with the Ridea FD mounting specially made for the Birdy...
Forum: Folding Bikes
08-02-22, 02:27 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I agree with you, several Shimano rear derailleur...

I agree with you, several Shimano rear derailleur accept bigger biggest cog that what Shimano specify. I know the the RD-R8000-GS medium cage that according to Shimano is limited to 34t can work with...
Forum: Folding Bikes
08-01-22, 03:50 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

Yes Ridea will also fit but usually Ridea...

Yes Ridea will also fit but usually Ridea components are difficult to find and expensive.

56-44 is out of specification of most front derailleur but should work, its often used by pro cyclist who...
Forum: Folding Bikes
08-01-22, 06:10 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

What is done on the Ti Birdy doesn't give any...

What is done on the Ti Birdy doesn't give any idea about what can be done on a Birdy III since the frame is totally different with different dimensionning, its not a titanium clone of the Birdy III...
Forum: Folding Bikes
08-01-22, 03:25 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

MTB crankset for the same BSA 68mm like on the...

MTB crankset for the same BSA 68mm like on the Birdy have a wider chainline due to the shape of their spider. There is no need of a longer axle.

If you begin to add spacers and use a crankset for...
Forum: Folding Bikes
08-01-22, 03:07 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Yes, it will probably be too close to the frame. ...

Yes, it will probably be too close to the frame.

No, you cannot add spacers because the axle of the crankset won't be long enough. This relatively narrow chainline is a standard for road bikes.
...
Forum: Folding Bikes
08-01-22, 02:41 AM
Replies: 22
Views: 369
Posted By Jipe

Its true that a wider rim is better, however,...

Its true that a wider rim is better, however, ETRTO standard accept 50 or 55mm tires on the most common 19mm wide rims.
Forum: Folding Bikes
08-01-22, 02:36 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Shimano RD-R8000-SS short cage is limited to 30t...

Shimano RD-R8000-SS short cage is limited to 30t for the cassette, it doesn't accept a 32t or 34t biggest cog while RD-R8000-GS goes up to 34t.

As said, a Shimano 53-39 crankset is a road crankset...
Forum: Folding Bikes
07-31-22, 04:22 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

What I observed is that at the beginning, it...

What I observed is that at the beginning, it become slightly smaller and then length stabilize.
Forum: Folding Bikes
07-30-22, 10:36 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I have an Ultegra RD-R8000-GS medium cage...

I have an Ultegra RD-R8000-GS medium cage capacity max 39t, rear max cog 34t (with 9-34t cassette) on my Birdy Touring and its OK, to too close to the ground, not closer to the ground than original...
Forum: Folding Bikes
07-30-22, 03:33 AM
Replies: 22
Views: 369
Posted By Jipe

I fully agree with Ron, the main factor is the...

I fully agree with Ron, the main factor is the frame geometry, not the wheel size and especially not a relatively small wheel diameter difference as between ETRTO451 and ETRTO406 (and an ETRTO406...
Forum: Folding Bikes
07-30-22, 03:26 AM
Replies: 10
Views: 296
Posted By Jipe

You mentioned riding in London, I thought the...

You mentioned riding in London, I thought the T-line was now available in UK ?

Also, the Chinese Ti mainframe aren't comparable with the new T-line Ti frame and the T-line has a carbon fork, so...
Forum: Folding Bikes
07-30-22, 01:11 AM
Replies: 10
Views: 296
Posted By Jipe

First thing, if you make a lot of changes to a...

First thing, if you make a lot of changes to a P-line to reduce its weight, you will end up with a total price exceeding the one of the T-line -> better to buy immediately a T-line.

Limited...
Forum: Folding Bikes
07-29-22, 03:19 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

And its 273€ without taxes! In EU, its 330€ with...

And its 273€ without taxes! In EU, its 330€ with taxes.

For the beam pattern, its similar to the M99 mini for ebike that has an excellent beam pattern.
Forum: Folding Bikes
07-29-22, 03:11 PM
Replies: 22
Views: 369
Posted By Jipe

You shouldn't focus on wheel diameter that much. ...

You shouldn't focus on wheel diameter that much.

Tire width is more important for comfort than wheel diameter.

A 50x406 or 55x406 is better than a 41-451 or 44-451.

And BMX tires aren't a...
Forum: Folding Bikes
07-29-22, 10:17 AM
Replies: 22
Views: 369
Posted By Jipe

ETRTO451 is a bad wheel size, the choice of tires...

ETRTO451 is a bad wheel size, the choice of tires is much too limited !
Forum: Folding Bikes
07-28-22, 03:31 PM
Replies: 53
Views: 97,878
Posted By Jipe

I was interested by the full titanium 3sixty...

I was interested by the full titanium 3sixty Brompton clone (it was before the announcement of the T-line) and contacted them to ask if they can ship to EU: answer was that they do not ship to any EU...
Forum: Folding Bikes
07-28-22, 03:24 PM
Replies: 39
Views: 2,282
Posted By Jipe

You should try something else than a Pashley...

You should try something else than a Pashley built TSR !
Forum: Folding Bikes
07-28-22, 03:35 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Shimano changed the spider of their crankset many...

Shimano changed the spider of their crankset many years ago from 5 arms BCD130 for double like 53-39 and BCD110 for compact 53-36 and 50-34 to a proprietary 4 arms.

You need to find a 5 arm BCD...
Forum: Folding Bikes
07-28-22, 02:38 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The Birdy of the link use another crankset than...

The Birdy of the link use another crankset than the original one that might have another chainline than the original one of the R&M Birdy. If ypou look at this link fro 50PlusCycling...
Forum: Folding Bikes
07-27-22, 04:18 PM
Replies: 2,161
Views: 578,618
Posted By Jipe

Yes, the Ti Birdy is factory equipped quit a...

Yes, the Ti Birdy is factory equipped quit a 52-36 compact crankset and after upgrade has a 9-32 11s 3T/Ethirtheen cassette.

But with the 9-32t cassette I never need the smaller 36t chainring and...
Forum: Folding Bikes
07-27-22, 09:21 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

I suggest to try to place the chainring on the...

I suggest to try to place the chainring on the inner position to reduce the chainline because another member runs a 36t cassette without problem with a Dura-ace crankset which is a rod crankset and...
Forum: Folding Bikes
07-27-22, 06:07 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

Did you try to mount your chanring at the inner...

Did you try to mount your chanring at the inner position what reduces the chainline and might allow you to remount a 11-36t cassette ?
Forum: Folding Bikes
07-27-22, 04:08 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

This is exactly what suggested you to make with...

This is exactly what suggested you to make with the current stopper plug and a piece of threaded rod+a nut !

A stopper on one side is enough.

You have seen the picture of my Birdy/fork, it has...
Forum: Folding Bikes
07-27-22, 02:55 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

The front light adapter plate position can be...

The front light adapter plate position can be adjusted what also changes the position of the stopper plug, maybe changing the position of the plate would help ?

On the Birdy without front light,...
Forum: Folding Bikes
07-27-22, 02:42 AM
Replies: 2,161
Views: 578,618
Posted By Jipe

As you an see, on a Birdy with front light, the...

As you an see, on a Birdy with front light, the stopper plug is mounted on the front light adapter plate. This one can be adjusted .

Maybe this plate is not placed the same on your bike as on my...
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