“the back wheel hits the seat tube in that configuration – see MTBR.com “
Only on a small frame. I’ve got a medium 06 s-works enduro and have run both a rocco RC and DHX5 coil shocks at 2.75″ stroke and never had a problem with the wheel/lonkage hitting the frame. This is using the low BB shuttle. I’ve never tried it with the high BB shuttle
“the Enduro runs a 8.5 x 2.25 rather than the usual 8.5 x 2.5 size” only on the lower models in the range (the Expert I think). The upper two or three bikes (i.e. Pro and S works) came with a 2.5″ stroke shock giving a little bit more travel.
The bike is lovelly with a coil on it, especially the Rocco RC which I had ‘pushed’. You just could not tell the rear suspension was there, it just felt as if you were riding on a smooth trail even through rock gardens.
I’ve never tried it with an air shock though so can’t compare the two.
Big thread on fitment of coil shocks HERE. General opinion is that a 8.75″x2.5″ and 8.75″x2.75″ DHX 5 coil will fit when you use the low BB shuttle. You need to remove the metal valve cap on the boost chamber and replace it with a flat plastic cap from an inner tube valve.
If your DHX air is 2.25″ stroke then you’ll have approx. 140mm rear wheel travel, whereas with a 2.5″ shock you’ll get 150mm and with a 2.75″ shock you’ll get approx 166mm rear wheel travel. Considering which forks you are using you may alter the geometry a bit.
TFTuned can fit a spacer to a 2.75″ coil shock to limit it to 2.5″ if you want to be sure there will be no frame contact
