2007-2008 Polaris IQ Snowmobiles Service Manual, Page 28Get this manual
Model Specifications Front Suspension Suspension Type Shocks Air 2.0 Nitrogen Pressure 36mm Cylinder 47mm Cylinder Front Vertical Travel Inches (cm) Ski Center Distance Inches (cm) Setup Width Camber Inches (cm) Toe Out Inches (cm) IQ 42.5 Ryde FX Air 2.0 145 psi 60 psi 10 (25.4) 42.5 (108) 41.16 (104.5) 2.25 0.31 (57 7.9)0.12 (00.31)
Rear Suspension Suspension Type Front Track Shock (FTS) FTS Spring Rate lbsin (Nmm) FTS Spring Installed Length (inchescm) Rear Track Shock (RTS) IQ 121 Ryde FX HPG wIFP 130270 (2347) 7.97 Ryde FX Compression Adjustable wRemote Res.347 Square80_ (Soft)PN 7043070067PN 7043071067 .347 Square77_ (Softest)PN 7043240067PN 7043241067 .359 Square12.5# (Stock)PN 7043079067PN 7043080067 13.9 (35.3)