[Elecraft] K1 30m question

[Leo Starrenburg PA5LS]

I'm converting my K1 from a 150 kHz to an 80 kHz VFO range.

This means replacing the 30m X-tals in both my 2-band and 4-band modules.
Reading the manuals gives a 18.100 kHz crystal for the 30m band. This leads
to a 10.000 to 10.080 kHz range instead of the wanted 10.100 to 10.180 kHz
range.

The b1 etc menu offers choices from 3.5, 7, 10, 14, 18, 21, 24 and 28 Mhz,
but no 10.1 Mhz.

What am I missing here ? Any help appreciated.

73'Leo PA5LS