Hi Mackem,
We do offer some of our models as a frame only option, it just depends on what model you’re after. For example here is Grand Canyon CF SLX frameset option:
http://www.canyon.com/_en/mountainbikes/bike.html?b=3117
If you look under each model it will list all the different spec levels we offer and at the end has a frameset option if we offer it.
That said, as people have already mentioned our the entry level spec on most bikes is quite similar to the frameset price. You might find it makes more sense to buy a complete bike.
I hope that helps,
Regards,
Trevor @ Canyon UK