VSP custom modified Primary clutch (with core)

This is a custom package we are offering to our customers. We have found the P22 clutch and the P 85 clutch to not hold up to tuned boost sled very well. Performance reducing drastically after 600 miles of hard riding even with new belts. This is caused from the bushing wearing out and the clutch becoming sloppy. We have run this for a season on the snow and have found it to be a very durable solution. We have seen the following gains 

-Increased durability 2500+ miles and still tight at tuned hp levels 

-Roughly 1.3 lbs lighter then p22

-Better acceleration 

-Better top speed 5-7 mph commonly seen

-Better hp to the track 

-Able to run 12-18 grams less weight 

-Lower start ratio 

Lower belt temps 

kit includes 

-VSP machined yamaha clutch

  •Thunder weights

  •Two options of rollers 14.8 or 15.8mm 

as an added tuning feature.

  •Primary spring 

  •Primary bolt and washer 

  •Removal bolt (for water method) 

 •Billet adjustable cover (adds a bit of weight but enables adjustment for belt to sheave clearance on the fly

recommended addons 

  •VSP tri roller custom secondary kit to match with primary calibration 

Required!! 

 To get this price you need to ship us a core clutch and have it meet our inspection requirements to get this price. If you do not have a core clutch select our product with no core. If you have any questions in regards to cores please ask before shipping them.