I need to carry 2 mountain bikes using my W211, never done this before so thought id ask on here, do i go for roof mount or rear boot mount?
Well what a coincidence. Just fitted these to my CLS today.
They were also on my W211 quite often, same bars and feet. but only carried the two smaller boys bikes. Bought the third bike carrier today and fitted my bike.
The W211 kit you'll need from Thule was 3026, they have since upgraded and re-numbered.
Total weight is 55Kg incl all carriers and bars, roof limit 75Kg, so should be OK. When all fitted tight and locked, very secure. Bars lock to roof, carriers lock to bars and bikes lock to carriers.
I would not go for the cheaper rear mount that you just strap on with foam pads onto the rear and bumper. I fitted a borrowed one today, and not at all happy with its fit or security. Would not be comfortable with one of these two bike carriers, they seem a bit 'heath robinson' in the design and stability.
Its a choice between roof as I have done or rear tow bar mounted carrier, of course you'll need a tow bar, perhaps more expense, not an option on a CLS.
The roof bars are more versatile and perhaps less expensive in total.
When I met some long distance cyclists on the Eurotunnel, they all had tow-bar mounted carriers.
