Dalton RS Series Helix for Ski-Doo Helix Number:RS 47 / 42 And last but not least

And last but not least

either on winding roads or on the track

Constructed with flexible

or your workout is done

Each kits includes the lower shock bearing

Dalton RS Series Helix for Ski-Doo Helix Number:RS 47 / 42 And last but not least"RS" Series helix for Ski Doo Please Note These helixes fit Rev 800,etc. ALL Dalton RER electronic reverse helixes have a SPLINE center shaft section. There are some 2000 2002, 3 cylinder 800cc Ski Doos, and some Rev 500ss that use a "keyway" older style helix . Dalton does NOT build helixes for these keyway models. Be certain to confirm with your dealer ! These helixes do not fit models with the newer roller clutch like the REV "X" package models RER