Inner Tubes or Tubeless

TT tyres are designed to be mounted on tube-type rims only (see rim description below) and have a corresponding TT marking in the description of the tyre size (e.g. 90/90-21 M/C 54S TT).

Tube-Type Tyres have to be mounted on tube-type rims with inner tubes of the correct size but are not allowed to be mounted on tubeless rims, neither with tubes nor without tubes.

• If replacing a tyre with inner tube, always use a new tube!
• It is not allowed to mount tubes on tubeless rims, only tube type rims are suitable for tubes!
• Continental tubes are developed for speeds up to 130 MPH. Different manufacturers will have different speed ratings.
• Before mounting the tube, place the washer on the valve stem.
• After mounting lock both nuts against each other with a space of approx. 5mm (0,2”) above the rim. This type of mounting ensures, that on the one hand the valve is held in position for inflation, but on the other hand it does not tear off the tube in case the tire and tube rotate slightly on the rim.

• Please mount the valve cap after mounting a tyre!
• The valve cap protects the valve core from dirt and avoids air loss in case of a faulty valve core.
• Your valve core may open with centrifugal force – a loss of pressure could occur.
• Use a quality valve cap with O-ring.

• Flaps or rim tapes are used for tube-type rims.
• They are in place to protect the inner tube from damage, especially from the spoke nipples, which are mounted inside the rim.
• When fitting a new tyre or inner tube, the rim tape must be checked for damage and replaced if necessary.

Source of advice: Continental Tyres