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Can't seat tubless tire

Nov. 7, 2014, 11:59 p.m.
Posts: 1073
Joined: Sept. 8, 2004

It's a new Butcher SX on a Roval rim. I just took off an identical used Butcher SX from the same rim to swap to the rear. The rear seated with a floor pump.

In the past I usually have to use a gas station pump but this time I cannot get enough air in this thing to seat it no matter what. I've been to three gas stations and can't get the tire to budge, there is not enough pressure or volume getting in to the tire I think. Any ideas?

Since the valve is presta I have to use an adapter at the gas station so maybe that's an issue? I don't know.

Nov. 8, 2014, 1:36 a.m.
Posts: 5
Joined: July 7, 2007

Use a tube first so at least one side is on the bead, then remove the core of the presta valve so maximum air flow from the compressor is getting through.

Nov. 8, 2014, 5:34 a.m.
Posts: 0
Joined: Sept. 20, 2006

Removing the core will allow more air to get in faster and help the tire seat.

Nov. 8, 2014, 7:23 a.m.
Posts: 15075
Joined: Nov. 20, 2002

try making some 1/4 " rope into a loop just barely larger than the outside of the tire, put a screwdriver in the loop and wind it up to squeeze the outside of the tire casing which will spread the beads

Nov. 8, 2014, 7:26 a.m.
Posts: 11899
Joined: June 4, 2008

Lube the bead with soapy water and fill to 45-55 psi.

Or are you saying you can't get any air in there at all before it escapes?

Nov. 8, 2014, 7:41 a.m.
Posts: 966
Joined: Feb. 28, 2014

My hardest ever tire to seat I used a tie down strap and friggin motor oil on the beads! lol seated right up.

Nov. 8, 2014, 7:50 a.m.
Posts: 1073
Joined: Sept. 8, 2004

Lube the bead with soapy water and fill to 45-55 psi.

Or are you saying you can't get any air in there at all before it escapes?

This.

Nov. 8, 2014, 7:50 a.m.
Posts: 18067
Joined: Oct. 28, 2003

A co2 inflator does a nice quick punch of air.

http://www.lezyne.com/products-co2systems.php#co2inflators

Nov. 8, 2014, 7:51 a.m.
Posts: 18067
Joined: Oct. 28, 2003

Or if you want to get all NSMB about it, a punch of CO2.

Nov. 8, 2014, 8:11 a.m.
Posts: 712
Joined: Aug. 10, 2010

Perfect timing on this thread had the exact same problem last night but I put the tube back in and got on with my life we will try again later

Shredding hypothetical gnarr

Nov. 8, 2014, 8:34 a.m.
Posts: 1073
Joined: Sept. 8, 2004

Perfect timing on this thread had the exact same problem last night but I put the tube back in and got on with my life we will try again later

I will probably do the same. Tube it up for a while and try again later.

I'm thinking it also may have to do with the new tire being out of shape a bit since it was zip tied and folded in the package. Maybe once it has stretched and rounded out it will actually inflate.

Nov. 8, 2014, 8:38 a.m.
Posts: 1045
Joined: May 30, 2004

If is pretty common to get some sealant plugging up the valve a bit. This reduces the volume of air that you can get into the tire. Clean the valve or install a new one to see if it helps.

Nov. 8, 2014, 8:45 a.m.
Posts: 157
Joined: April 26, 2004

Perfect timing on this thread had the exact same problem last night ….

me too
had lots of trouble seating one this week
turns out the tape needed to be replaced
when I peeled up the old tape could see soapy water and Stan's under the tape in 3 places, likely taking old tires off pulls back on tape in places

Nov. 8, 2014, 2:48 p.m.
Posts: 15019
Joined: April 5, 2007

My hardest ever tire to seat I used a tie down strap and friggin motor oil on the beads! lol seated right up.

I'm using that trick next time

A co2 inflator does a nice quick punch of air.

http://www.lezyne.com/products-co2systems.php#co2inflators

NO!

Why slag free swag?:rolleyes:

ummm, as your doctor i recommend against riding with a scaphoid fracture.

Nov. 8, 2014, 3:21 p.m.
Posts: 2121
Joined: Nov. 6, 2005

Instead of a CO2 cartridge maybe the Bontrager TLR Flash Charger pump?

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