hi, i lent my friend a tioga dh tyre as his was bald, in return he lent me a q/r for my magura hs33 i have one on the front and it is fine, but i was worried about them not being able to do up tight enough. I dont mind it on my front as that very rarely gets used apart from setting up for a gap ect. please reply as i will fit it in a bit if i get good feedback on it. cheers people. :)