tubeless tyre valve is made of brass or zinc alloy TUBELESS TYRE VALVE ARE YOUR STANDARD VALVE STEMS FOR YOUR PASSENGER VEHICAL WITH .453 DIA HOLE.THESE ARE EXCELLENT QUALITY STEMS .                             VALVE   STEMS                                    25          50       100       200       500      1000     3000      5000      10,000 TR-412  X  3/4''......   23         20.9     19.9     18.9      15.9      15.5      14.9       14.5       13.9 ea TR-413  X  1 1/4.....  23         20.9     19.9     18.9      15.9      15.5      14.9       14.5       13.9 ea TR-413 CHROME... 35         29        27.9     26.9      25.9      25.5      24.9       24.5       23.9 ea TR-415  X  1 1/4.....  28.9      26.9     24        23.5      19.9      19.5      18.9       18.5       17.9 ea        TR-418  X  2 .........   25.        24.       23.5     22.5      19.5      19.5      18.9       18.5       17.9 ea TR-425  X  2 ..........  35         29        27.9     26.9      25.9       TR-600 HP  X  1/14  34         30.9     29.9     28.9      24.5                   

    TR-412,  TR-413,  TR-418,  HP-600,  HOLE SIZE= .453

    TR-415,  TR-425,.............................  HOLE SIZE= .625

Tubeless tyre valve