looking for some big grippy cx tyres for my tourer.
any recommendations?

What is your max size for the frame/fork ton?

not sure, but i have schwalbe marathon plus 47c on now, with full guards.

What are you riding on? You’ll get the slightly more knobbly Marathon Mondials in 1.75″ (47c) size too. Fine for forest tracks etc.

Bruce Gordon Rock n Road

Any bigger and you are into 29er tyres.

found some 29 x 1.75 Colin. are they the ones?

look ideal

These look great, not a full cx number but a handy gravel tyre.
http://www.wtb.com/products/riddler-45c

If you want some tread the new 38c Ritchey megabite looks ace (I have some on the way, but this is for off road

Aye. I’ve used them for some bikepacking on/off-road stuff.

WTB Nano 40

These also look nice

Cazadero Tire (700c/650b x 42mm)

These also look nice
http://www.somafab.com/archives/product/cazadero-tires-700c650b-x-42mm

The Cazadero is much better than the Nano on road but I find them somewhat lacking off road.
They look damn nice though!

just been on the next day tyres site. they have loads of options on there.
cheers.

Schwalbe Smart Sam 1.75″ x 29 (47mm)

Just replied to your grips for sale on bear bones I’ve some wtb nanos 40c if your interested I’m not even sure if I’ve used them

If you want tough that come anywhere close to Marathon+, I suggest Continental Travel Contacts.
A lot of the tyres mentioned would be puncturing in one ride where I live but I used Travel Contacts for almost 2 years without a puncture.
Not exactly cross tyres but good side knobs for a bit of grip and fast rolling due to flat centre tread.