• You are describing a ghetto version of Schwalbe Pro-Core.

    You need to drill a second valve hole. Run the tubeless valve through that and run the inner valve through the existing valve hole.

    Pump them up independently. Obvs inner psi < outer

    A road tubular will be better than an inner tube tho

    Then bosh - really heavy wheels!

About

Avatar for Hulsroy @Hulsroy started