best we got out of the zx was by useing a 19/45 and the secondery the stock track didn't offer a lot of loading as compared to say the 04 track . the track will dictate the helix used with this gearing .
straight 40 degree helix and make sure the bushing clearence on the big iameter bushing is not to loose .
this kills a lot of potential track speed if the secondery sheave can **** sideways a bit and add drag on the up sift and screws the back shift .
most noticable in deep powdeer .
use a new stock sec spring .
primary 415 ramps with a 160/320 primary spring , again make sure the spring tower cap to shaft clearence doesnt allow for much side play , same reasoning as the secondery bushing when it is to loose a fit , cross binds .
again you wont notice the wear on the flats in the bushing s but in the deep snow it is crucial that they are a tight fit , not worn.
pin weight 14.5grs with a stock roller or 1mm over size roller with 12.5 gr pin weight .
over size roller works well with the gearing and shallower helix than the stock 44 degree helix it came with . there again the 44 was good in a less loaded situatiion .
track tension needs to be enough slack as to not have the track over tighten on the compression of the suspension and squeezing off track speed here . common mistake . but on the zx chassi this is a ticklish measurement as with out antiratchet sprockests it is easy to get the track tension to tight .
back to playing with gearing ,i have fit a 19/47 into the chain case and this allowed me to use a much taller helix . the taller angle helix allows for blistering track speed acceloration and the gearing allows the system to not be to over loaded on the back shift under full power .
top speed is no more than 70mph on the flats but in the steep anddeep this como can deliver the highest track speeed .
but track speeed is limited to that darn ole tunnel clearence .but for as good as it gets that what i have played with that delivers . im 220 , gear on im 300lbs so it should work for ya to .
