only £1800 more than the US pricing
Only?
That’s an obscene ammount! You could go on holliday to New York, pay full RRP, bring it back (being naughty and not telling Mr Tax Man, tut tut), ride it, break it, go on holliday again to Florida this time, sort out the warrenty replacement and come back. And still be in profit!
What are the importers doing for their £1800!
can’t this be done with shock fettling?
No, you can adjustt he spring rate on air springs but not usualy the position sensitivity of the damping, if you have a progressive linkage the spring rate increaces towards the end, but so does the damping, a progressive air spring with a linear linkage would beocome less and less damped relative to the spring rate the cloer it got to bottoming out.
and the shock isn’t side loaded like a single pivot
neither my nor several of my mates single pivot bikes have suffered rear shock implosion, I can see the concern, but is this a real world problem? Overall stiffness of the back end is probably more down to frame design than number of pivots shirley? (eg big boxy SP stiffer than spindly 4/faux bar)
Depends on the 4-bar, DW and VPP style frames are very stiff as they’re well triangulated back ends with short stiff links, FSR style back ends (and admittedly faux bar) less so. Orange maybe an exception and are stiff, Cannondale Prophets were notoriously no very stiff. It’s not just shock bushings and shafts that get trashed, the side loads will cause them to bind when loaded and not react properly either. Which is one reason why the odd shock linkages on some new bikes that put the bottom bushing vertical are really quite cool, as the suspension twists, the shock can twist too.
As I (and you) said though, it’s often not a problem in the real world and any design can be made to work. Just look at a DW rear triangle move upwards almost verticaly with no rotation, then watch a VPP bike follow a simila axle path, but the whole triangle rotates forwards a lot. If the marketing was true and it really does take thousands of hours to tune out tiny anomalies in the suspension kinematics, then one of those designs should be horirble, but they’re not.