Haven't actually got my finger out to ring Camskill as yet, looks like Sheffboy's gonna save me the trouble so I'll wait and see what he turns up!
On further research it looks like the RFD suffix on the Mytyres description stands for Reinforced which are also referred to as XL so there's a chance they both have rim protection.
Sorry mate. didnt get the chance to ring them today as i was driving to Norfolk to pick up my new 18" split rims Sounds like camskill is the place though, reading the other posts.
They'll be getting £240 of my hard earned tomorrow morning