In the past, converting to schrader is simply having a nice new sharp drill bit and drilling.... It's very easy.

I have the DT Swiss 520SL 29" rims.

Now I know why you don't like going tubeless... If you had Stans Rims something tells me you wouldn't be switching back to tubes...

 

Now I know why you don't like going tubeless... If you had Stans Rims something tells me you wouldn't be switching back to tubes...

I'm not planning to go back to tubes. Just getting tired of the rim tape getting messed up when I pop the bead to add more stans as well as the presta valves getting so clogged up that I can't add air if needed.

 

I used to drill all my rims out so I had the option to run any set up. Some of the new rims seem so narrow it might weaken the rim. I might not do it to a rim out of the box but if you have any miles on them go for it. I take file and smooth the sharp edge off.

 

It's really just a matter of enlarging the hole. As long as your rims aren't narrow featherweights, it should be fine.

 

Do the stans stems allow you to inject the sealer in without popping the bead?

 

Do most LBS carry these?

 

Why is presta a hassle? i agree about tubeless, but how is presta a hassle, they've never been anymore of a hassle than my old shraders ..

 

They get clogged up with sealant and also require that you pop the bead of the tire to add more sealant.

I'm all thumbs and more times than not I mess up the rim tape in the process.

 

They get clogged up with sealant and also require that you pop the bead of the tire to add more sealant.

I'm all thumbs and more times than not I mess up the rim tape in the process.

You can add sealant through a presta valve it it has a removable core. I use a baby medicine syringe or one of the pointy ones you get from dentist offices to inject into the presta valve. No mess or bead cracking necessary.

 

where did you get the presta with the removable core.

 

I too can't see the hassle you are having with Presta valves. I thought on all of them they were removable cores but I guess not, take a look at yours and see if they are. I never break the bead just to add some more sealant, just purchase one 2oz bottle of stans and you can re-use the bottle every time you need to add fluid.
Attached (if worked correct) are pics of the presta stems that you can do this with, there are some tubed versions too. look at the upper end before the tip that opens and you should see threads with a flat side on each side, if so these should be removable.

 

THese are sold at most LBS and many places online. THey have removeable cores.

Universal 35mm Mountain Valve Stem (Pair)

 

Over the years using stans with Presta valves, about the only two issues I've had are the core itself gets a little booger around the sealing surface which causes a small leak. If you crank down the little brass part after inflation, you usually can get those to stop. The other issue is that the passageway into the tire will get clogged. I just remove the core and stick a piece of wire in to clear the clog.
The other thing is once you buy the stans valve stems, you can put any removable presta core in them. Also, if you buy tubes for either normal use or for emergencies, the brand "Q Tubes" have removable cores so you can actually juice up your tubes too.

 

no flat spots on my cores so i need to get some removable ones in there.

 

When using the removable cores, it will help if you have a valve core removal tool from Stans: Core Remover Tool. You can also use needle nosed pliers or something similar to remove the core. But the special tool works a lot better and there's less risk of damaging the valve, which might happen with pliers. I have purchased this tool at Trailhead Bike Cafe, but most LBS sell all this stuff. Like others have said, no reason to switch to Shrader.

Bob

 

awesome .. thanks guys.

 

If you end up staying with the presta valve and happen to have any left over Slime tubes, take a look at the valve on those tubes too. Most of the Slime tubes have a removable core valve and if you're handy with an exato knife or razor blade you can cut the valve out and seat it up similar to the Stan's valve. I would imagine the Stan's valve would seat just a little easier but I switched to tubeless a while back and have had good luck with those left over valves.

 

The worst thing that happen to me with removable cores was not paying attention when adding air on the trail. Thought I was just loosening to add air but I was removing the core which then proceed to fly out into the bushes. I now carry a extra Stan's stem in my pack. I broke my Stan's syringe so now I just use those 3 ounces bottles of Stan's to refresh.

 

I'll raise my hand here - been there done that.

Never really think about it until it happens - pretty much no 'hack' to fix it either. Was a long walk

 

I know I saw the stan's presta stems with removable cores and tool at Slippery Pig last week. I thought about trying them then I remembered that I still have about 20 tubes at home that I plan on continuing to cannibalize.

 

You can also get a tool that can remove the pin from non removable cores. But most LBSes will have Stans stems.

 

If I may ask what presta tubeless valve are you using, didnt know of a presta tubless valve in recent year that wasnt two piece. Maybe I'll learm something

 

obviously the wrong ones. When I bought the bike the LBS threw in the tubeless conversion as a part of the deal.

 

Really they should have provided removable cores as part of the tubeless conversion. As you can tell from most of the replies here, it really makes little sense to go tubeless without removable cores. That makes tubeless SO much easier. I bought my first tubeless setup in 2002, and the bike shop that did it (Adventure) installed removable cores, even back then.

Bob

 

If that is the case I would just pick up a set of stans valves and their injector makes like easier even easier if you buy their core remover it works on both shrader and presta. who caboodle should set you back around $30 really makes set up and maintenance easy. Plus with the injector you can add sealant to shrader and with a little work presta tubes.

 

Here is what you need. http://www.notubes.com/Core-Remover-Tool-P350.aspx

 

I got them at amazon - Amazon.com: Stans No Tubes 35mm Presta Universal Valve Stem (Carded Pair for Mountain): Sports & Outdoors. I also don't see the need for the special tool to remove the core, small crescent wrench does the job just fine with no damage.

 

I was lucky in that my Outlaws were big enough for Schraeders and the only stem that's been in them are the 949 racing stems. Absolutely love them. Much easier to deal with than those little Presta valves. Will never own another wheel without Schraeder valves. Plus, you can have bigger or thicker chunks and they'll still fit through the larger hole.

 

buy a pair of Fenix thorn-resistant inner tubes,and you won't need to use any sealant. also,you won't need to add pressure as often. they're not low cost,but they last a long time.

 

Hey new guy, welcome, awesome first post!

You get the award for zombie thread revival, 11 years, wow 🤣