Upshift Custom Clutch Kit

Upshift403 offers cutoms clutch kits designed to complement our perforamce engine products.  Because many of our engine combinations are outside typical mainstream applications, off -the-shelf clutch kits may not always be the best fit.

We ride everysingle weekend, long to short tracks, testing and collecting data.  There is a difference in peformance when our season is October until End of June.

Stock Boost clutching is designed to be forgiving and cover a wide range or snow conditions and elevations, this is a platform we can really make a difference too

Arctic Cat 858 -  our clutching combos are a complete diffence in approach from the factory

Before purchasing a complete kit, we are always happy to help you adjust, modify, or add components to your existing clutch setup.  Sometimes a few changes are all that's needed to get the performance you're looking for.

Our approach to clutching in based on years of hands-on experience, testing, and racing. Below are our experiences, theories and philosophies on a cltuch kit:

• Every clutch kit is custom.  After your purchase, we will contact you by text or email to gather the details about your machine, modifications, riding style, elevation, and intended use
• Your personal preference matters.  Some riders want quick throttle reponse, while others prioritize track speed and overall performance.  One clutch setup cannot perfectly maximize both, so we build the kit around what matters most to you. What makes them custom starts with customer personal preference on throttle response vs track speed or performance - one clutch kit doesn't do both perfectly
• Watch our youtube video on engine HP at different RPM ranges.  RPM is important.  Engine horsepower changes throughout the RPM range.  A setup focused on quick response may allow the engine to  overshoot the peak HP RPM, while a track-speed-focused setup may traget a slightly lower RMP.  For example, a Boost customer with multiple power level tunes may want different setups for tree riding one day and hill climbing the next.
  
• Advertsising "the cheapest clutch kit" is advertising compromise. Our priority is getting the clutching right for the rider and application
  
• We feel getting the right helix angle in "most" applications is more important than the efficiencies of bigger roller, tri roller or other components.  Racing applications are obviously not in this category. Our first offering for recreation will be a dual track helix with two different angle profiles allowing the rider to dial into their desired shift characteristics
• Our products have been used in racing applications around the world, from grass and snow drags to watercross.  With extensive semi-pro racing experience, we have the knowledge to develop and fine tune clutch kits for a wide range of performance applications
  
• We prefer set screw adjustable kits becasue they are durable and, most importantly, make it easy for riders to fine tune and adjust their setup as needed 
  
• Our main intent with offering clutch kits is to support customers who either own or could be considering our engine products, not to compete with existing options that are already offered and tested on stock machines
  
• For some stock applications, the OEM helix already works extremely well.  When this is the case, we will credit you for the helix or provide you with a dual-track option that includes the factory angle

Each Kit Includes

• Primary weights -  adjustable or non adjustable
• Primary spring
• Secondary spring
• Custom helix
• Secondary roller bearing kit
• Delrin friction washers for primary spring
• Optional Torx Plus helix screws with socket - no more stripped screw heads!

Please Note: Some custom helixes may take up to 2 weeks to ship.  We stock may options, but not every configuration.  Some components for USA customers may be drop-shipped directly to reduce wait times.