Schraeder to Prestatyn rim covertor?

Can you buy grommet things to allow me to run Prestatyn tube where rim drilled for Schraeder?

Mavic 717….

Thanks.

Presta obviously…..

you can get a proper insert but shouldn’t need if you go Caerphilly

(make sure the edges of the hole have no burrs and you ought to be fine – I’ve put presta tubes in place of Schrader when I’ve punctured on a ride and then left them in for ages)

Yes, not sure where from though, ask your LBS I’m guessing a few get taken out of new wheels. Or just run Schrader, not a bad thing.

mikew makes a good point – unless you already have presta tubes, don’t bother

i know you can get little adapters- but they dont make much difference ime, of course if youre going the other way youll have to ryhll them out

I run Prestatyns in Shrewsbury rims no problem, though there is of course a bit of a Shrap around the valve body but it seems to cause no issues.

Yeah i use these on my 717’s.

Alternatively these

😀

applauds.

I’ve heard that drilling out Prestatyn rims, Wrexham.

Nah, the tyre will Mold itself to the rim, no bother

good on him for Afan Argoed at it.

Will be fine. Just Bangor in.

Indeed. 717 rims aren’t up to much though. A bit flimsy in my opinion. Fine if you’re a lighter Rhayader though.

If you do Rhyll them out be careful, if it slips you could Margam and that generally Wrexham

Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch tubeless, mind.

Great thread!

and back to the point… 🙂

Most Schwalbe tubes with Presta valves come with the grommet.

I’ve ran Prestatyn tubes in schraeder rims with no grommet for years, no issues.

Make one yourself with a bit of rubber & a Crafnant knife.

Great thread – what do you Brecon..?

Don’t Usk me

househusband – Member
Great thread – what do you Brecon..?

(llan)dudno really

Love it 🙂

No need for the grommet, Prestatyn tubes are really Taff

Aye, they’re Builth pretty Wells

Whatever you decide, I hope you get this Resolven soon.

Just don’t go making a Machynlleth of yourself

Corwen you find out which ones fit, Denbigh the ones to tell us about 😆

Menai a rider has had the same Dai-lemma. Personally I wouldn’t Risca tube without one.

I Llandudno what else to add…

Don’t bother with tubes anymore, sick of punctures from Fflints

I’ll Gorlech in the shed for some spares.

Might be cold when you Gorlech out to the shed so don’t forget your Cardigan.

Anglesey what I’ve got. Mavic rims Aberystwyth the little bits you need usually.

If you buy Continental tubes then the little knurled lock ring thingy is stepped and can be used to centre a prestatyn valve in a shrewsbury Ness hole

Be careful, if they puncture while riding you risk a Holyhead

Thread of the month 🙂

If one doesn’t do the job Caerphilly, one might Criccieth one’s neck.

It’s nice to have the flexibility if you catch a Fflint unexpectedly, especially if the patch you apply keeps Ruabon off.