The SS hub is described as being either bolt up or qr, if it's bolt up you shouldn't have any problem fixed. Might be worth dropping them an email to clarify whether the hub comes with the necessary bolts.
The regular hub can be used with a 10mm through axle with the correct rear hub adaptor. A bolt up through axle such as this should work fine fixed.
The SS hub is described as being either bolt up or qr, if it's bolt up you shouldn't have any problem fixed. Might be worth dropping them an email to clarify whether the hub comes with the necessary bolts.
The regular hub can be used with a 10mm through axle with the correct rear hub adaptor. A bolt up through axle such as this should work fine fixed.
^
Ignore that, misunderstood you