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Presta valve inner tube for Brompton

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Presta valve inner tube for Brompton

Old 10-29-22, 06:05 AM
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CEBEP
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Presta valve inner tube for Brompton

I have Schwalbe Marathon plus tires and want to switch inner tubes to Presta valve ones. Which tubes would suit best?

Will Presta fit to the rims or do I need to buy an adaptor or something?

Last edited by CEBEP; 10-29-22 at 06:39 AM.
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Old 10-29-22, 06:53 AM
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Just get a 349 tube.
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Old 10-29-22, 07:11 AM
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Just ordered Kenda
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Old 10-29-22, 05:33 PM
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Originally Posted by CEBEP View Post
Just ordered Kenda
Make sure you buy the valve height you need. If you've got high profile rims, you'll need a taller valve.
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Old 10-29-22, 06:04 PM
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Originally Posted by Ron Damon View Post
Make sure you buy the valve height you need. If you've got high profile rims, you'll need a taller valve.
Thanks Ron. I did check this and ordered ones with normal valve hight as I have stock rims.
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Old 10-30-22, 06:57 AM
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The hole for the Schräder valve is bigger, too big for the Presta valve (rims for Presta valve have a valve hole with a smaller diameter than rims for Schräder valves).

You need an adapter ring to avoid any damage to the inner tube that could eventually cause a leakage around the valve.

The Schwalbe inner tubes with Presta valves (SV4 for the Brompton) are delivered with a ring that also play the role of the adapter.
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Old 10-30-22, 12:05 PM
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Agree with Jipe, you need the adapter.

I used to use the Wheels Manufacturing adapters, they are metal. But, I had some corrosion problems. I also had a tube fail near the valve stem which I blamed on the adapter. I no longer use them.
https://wheelsmfg.com/pss-1.html

I now use one by Mavic. This is the only place I know to buy, but there may be other places.
https://www.sjscycles.co.uk/rims-tap...der-to-presta/
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Old 10-30-22, 12:37 PM
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Originally Posted by Tourist in MSN View Post
I used to use the Wheels Manufacturing adapters, they are metal. But, I had some corrosion problems. I also had a tube fail near the valve stem which I blamed on the adapter. I no longer use them.
https://wheelsmfg.com/pss-1.html

I now use one by Mavic. This is the only place I know to buy, but there may be other places.
https://www.sjscycles.co.uk/rims-tap...der-to-presta/
Same here. Those Wheels Manufacturing, while looking better at the start, are a disaster since they fuse over time galvanically with the valve and rim. I had to destroy a perfectly good tube, because there was no gentle way of getting the vent+adapter out. I now use rubber adapters - you want a minor item to be the easiest to tackle.
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Old 10-30-22, 01:04 PM
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Originally Posted by Jipe View Post
The Schwalbe inner tubes with Presta valves (SV4 for the Brompton) are delivered with a ring that also play the role of the adapter.
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Old 10-30-22, 07:08 PM
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Originally Posted by Tourist in MSN View Post
Agree with Jipe, you need the adapter.

I used to use the Wheels Manufacturing adapters, they are metal. But, I had some corrosion problems. I also had a tube fail near the valve stem which I blamed on the adapter. I no longer use them.
https://wheelsmfg.com/pss-1.html

I now use one by Mavic. This is the only place I know to buy, but there may be other places.
https://www.sjscycles.co.uk/rims-tap...der-to-presta/
Thanks. Could you post a picture of correct installation of Mavic adaptors?
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Old 10-31-22, 07:12 AM
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Originally Posted by CEBEP View Post
Thanks. Could you post a picture of correct installation of Mavic adaptors?
I do not have a photo. Doing some internet searching, I find two options, one is to put it into the rim, not from the tire side, the other side. And the other option is to put it over the valve stem before you put the valve stem into the rim.

I put it on the valve stem, then insert the valve stem into the rim.

It had not occurred to me why the Schwalbe valve stem rings were shaped the way they are until I saw the post from TCS. But that makes sense and if you put the Mavic adapter on the valve stem first, then on most rims you could use that Schwalbe ring to hold the stem centered from the other side of the rim too.
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Old 10-31-22, 09:13 AM
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You put the Sunlite rubber grommet from the inside of the rim. After all, the main goal is to protect the tube.

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Old 10-31-22, 09:20 AM
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Listing on Aliexpress shows the opposite
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Old 10-31-22, 10:30 PM
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Take a look at:

It's a video by Chris by Bike on You Tube. Very good Brompton channel. She knows her stuff.
In a response to one of the questions, she says to get plastic adapters for the schrader sized hole in the rim.

Good luck.
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