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  1. #1
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    Giant rims tubeless ?

    Has anyone made their P-XC2's tubeless ? I'm going to try and was wondering if anyone else already had.
    What kind of bike do you have?
    A Sledgehammer.
    Dang! You got shocks, pegs...lucky! You ever take it off any sweet jumps?

  2. #2
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    I did a forum search and nothing came up but I just found a thread that answers my question. Tried to delete but couldn't .
    What kind of bike do you have?
    A Sledgehammer.
    Dang! You got shocks, pegs...lucky! You ever take it off any sweet jumps?

  3. #3
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    Could you share a link to the forum thread you found, for the benefit of the others who may have the same question?

    TIA

  4. #4
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    What kind of bike do you have?
    A Sledgehammer.
    Dang! You got shocks, pegs...lucky! You ever take it off any sweet jumps?

  5. #5
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    Some tires can be made tubelesss on the P-series. I have a WTB 2.4 mutanoraptor that went ghetto tubeless super easy. The oem Crossmark 2.1 is so flimsy that I gave up after about, oh, 2 days.

  6. #6
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    I know someone who recently tried using Stans rim strips (from the "standard" kit) on his P-XC2 rims and gave up on them - he said the strips kept slipping into the center groove. He ended using the ghetto method with a 24" split tube.

  7. #7
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    Yeah I converted my P-XC29 2 wheels the other day using stans yellow tape and some sealant. I only have one ride on them since but so far so good. I used Maxis Ikons f/r. It was kind of a b!tch to do not sure if it was the wheels or the tire that made it a pain in the a$$.

  8. #8
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    Converted my P-XC2 29er wheelset to tubeless using the Stan's notubes Flow kit, the existing OEM Maxxis Crossmark tires, and co2 cartridges to quickly fill the tires.

    First I will point out what I did wrong so you don't do the same mistake as me. Do not skip the step of using a drill bit to enlarge the valve hole and do not try to fill the tire with a foot pump.

    Now with that out of the way do the following to both rims:

    1. Wheel already has a rim tape so no need to use the yellow tape.
    2. Enlarge the valve hole (ONLY) in the inner part of the rim. This will allow the thick rubber part of the valve to sit deeper in the rim and allow the tire bead to hook.
    3. File the valve hole to remove any sharp metal remaining from the drilling.
    4. Mount the tire and rotate the wheel until the valve is at the top, then open the bottom of the tire enough to pour 2 cups of the Stan's white sealant and close the tire bead.
    5. With a sponge or rag, apply the soapy water solution to the inner wall of the rim and sidewall of the tire.
    6. With the wheel vertical and the valve at the top, press down on the of the tire to force the sides out and fill the tire using the co2 cartridge. (I had to do this twice with both wheels because it did not seal on the first fill)
    7. Once filled, bounce the tire on the ground and rotate it slightly with every bounce until you have gone all the way around.
    8. Lay the wheel on the side on a bucket so it is level and let it sit for 1 minute and then flip the wheel to the other side and let it sit for 1 minute.
    9. Fill the tire to about 30 psi and check for any leaks. If you find any small leaks, move the tire around until you get the sealant to that area to seal the leak.

  9. #9
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    Or, get a compressor or drive to a gas station to use theirs and you won't blow (literally) $5 worth of CO2.
    I guide and rent bikes in Northern Utah

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  10. #10
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    Quote Originally Posted by nightvisionmiami View Post
    Converted my P-XC2 29er wheelset to tubeless using the Stan's notubes Flow kit, the existing OEM Maxxis Crossmark tires, and co2 cartridges to quickly fill the tires.

    First I will point out what I did wrong so you don't do the same mistake as me. Do not skip the step of using a drill bit to enlarge the valve hole and do not try to fill the tire with a foot pump.

    Now with that out of the way do the following to both rims:

    1. Wheel already has a rim tape so no need to use the yellow tape.
    2. Enlarge the valve hole (ONLY) in the inner part of the rim. This will allow the thick rubber part of the valve to sit deeper in the rim and allow the tire bead to hook.
    3. File the valve hole to remove any sharp metal remaining from the drilling.
    4. Mount the tire and rotate the wheel until the valve is at the top, then open the bottom of the tire enough to pour 2 cups of the Stan's white sealant and close the tire bead.
    5. With a sponge or rag, apply the soapy water solution to the inner wall of the rim and sidewall of the tire.
    6. With the wheel vertical and the valve at the top, press down on the of the tire to force the sides out and fill the tire using the co2 cartridge. (I had to do this twice with both wheels because it did not seal on the first fill)
    7. Once filled, bounce the tire on the ground and rotate it slightly with every bounce until you have gone all the way around.
    8. Lay the wheel on the side on a bucket so it is level and let it sit for 1 minute and then flip the wheel to the other side and let it sit for 1 minute.
    9. Fill the tire to about 30 psi and check for any leaks. If you find any small leaks, move the tire around until you get the sealant to that area to seal the leak.
    Bump, bam!! I want to do this same thing and I am getting stuck on the fact that you don't need the rim tape but do you need the rim strips? My LBS said to use three rounds of tape!!?? But then the kits sell the rim strips. I am at a loss. I have 27.5 PXC-2 wheels on my Giant. Thanks for any tips about that part. I mean I read your description, I just have a hard time getting past the idea. So all I need is sealant and to widen the valve hole?

  11. #11
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    the ones on my talon 4 went tubless easy

  12. #12
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    I know I am over thinking it. I am just about to order the tape, be done with it and give it a try. But did you just tape the rims or did you use rim strips?

  13. #13
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    I used 1" gorilla tape and did one loop and over lapped it by about 7". Used stans valve stems. Working good for two weeks

  14. #14
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    Quote Originally Posted by Mahmer09 View Post
    Bump, bam!! I want to do this same thing and I am getting stuck on the fact that you don't need the rim tape but do you need the rim strips? My LBS said to use three rounds of tape!!?? But then the kits sell the rim strips. I am at a loss. I have 27.5 PXC-2 wheels on my Giant. Thanks for any tips about that part. I mean I read your description, I just have a hard time getting past the idea. So all I need is sealant and to widen the valve hole?
    The rims already had a tape around it to cover the spoke nipples, so there was no need to use the tape that came in the Stan's kit. This tape was almost transparent and about 1/4 inch wide.


    The rubber by the valve is thick so if the hole is not wide enough, it will not sit low and give clearance for the tire bead to catch on the rim.
    Everything is better on 2 wheels!
    Giant Anthem X 29er
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  15. #15
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    Quote Originally Posted by nightvisionmiami View Post
    4. Mount the tire and rotate the wheel until the valve is at the top, then open the bottom of the tire enough to pour 2 cups of the Stan's white sealant and close the tire bead.
    Two cups seems to me like a crazy lot. I have about 60ml in each of mine, this worked with the stock Nobby Nics (until I got tears in the sidewalls) and the new HR2/Ardent combo I have now.

    No problem with the stock yellow tape.

    Did have trouble getting the Stan's valves to seal, wound up tightening the hell out of the nuts, then backing off once they were sealed up.
    2012 Specialized Camber Comp
    2014 Kona Taro
    2014 Giant Trance 27.5 1
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