Vortex Two-Disc Racing Clutch from SMC (Threaded Drum)

Product Specs:

• Left Hand Threaded Drum for use with Vortex Ball Bearing Sprockets
  
• 3/4" Bore
• #35 Chain
• 2 Disc Engine Clutch
  
• Vortex torsion springs for mechanical efficiency
  
• SMC Roller Levers for mechanical efficiency
  
• New anti-wobble sprockets
  
• New lightweight drum
  
• New 12 tab clutch disc
  
• New high strength steel drive hub
• Available in 12T-16T
• Black Springs are the stock spring for this clutch
• DRUM COLOR MAY VARY!
  

• Vortex's patented mechanism accelerates faster.
  
• Vortex torsion springs are connected directly to the levers. (Not the pressure plate.)
  
• This extremely efficient and precise control of levers causes Vortex clutches to lockup in a shorter distance. 

• Vortex springs are naturally more accurate. Blueprinting is not required.
  
• RPM adjustments are simple. Just relocate spring ends into another hole.
  
• RPM adjustments are fast. There are no spring heights to set.
  
• RPM adjustments are precise. All six springs apply perfectly identical loads.
  
• There are no air gap limitations. You get more races between rebuilds.
  
• Maintenance and repairs are easy. Say goodbye? to your clutch re-builder.