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Quick Pin-It Sprocket Hub System
Quick Pin-It Sprocket Hub System

Quick Pin-It Sprocket Hub System
Aluminum | 5-1/4" Bolt Circle

Part Number:K703120
Availability:In Stock
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Your Price: $149.95

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Wheel Hub Bore Size & Color
Sprocket Guard Color
Add a #35 Split Sprocket

Quick Chain "Pin-It" Sprocket Hub System:

  • This innovative system allows for fast and effortless changes of #35 split sprockets. Featuring a BMI-exclusive design, the hub is lightweight (just 1.85 lbs total) and CNC-machined for precision and durability, ensuring a tight and secure fit every time.
  • The system includes a specialized sprocket guard that bolts directly to the hub for added protection and stability.
  • Once installed, changing sprockets is quick and simple—just remove four quick pins, and the split sprocket is free to swap with a different tooth count in seconds.
Sprocket Hub Specs:
  • Brand: BMI
  • Hub Style: Quick Chain "Pin-It" Sprocket Hub
  • Material: Aluminum
  • Sprocket Bolt Pattern: (6) 1/4" Bolt Holes on a 5-1/4" Bolt Circle*
    *Note: Only (4) of the 1/4" Bolt Holes are Utilized with this Hub
  • Hub Bolt Pattern: 
    (3) 1/4" Bolt Holes on a 2-1/2" Bolt Circle
    (3) 5/16" Bolt Holes on a 2-1/2" Bolt Circle
  • Center Bore: 1.74"
Sprocket Guard: 
  • Brand: BMI
  • Material: Plastic / 3D Printed
  • Two-Piece Sprocket Guard 
  • Exclusive Design for Quick Change "Pin-It" Sprocket Hub
  • OD: 9"
  • Bolt Pattern: 1/4" Bolt Holes on a 5-1/4" Bolt Circle
Wheel Hub: 
  • Brand: BMI Karts
  • Material: Aluminum
  • Lightweight
  • Finish: Clear or Anodized
  • Color Options: Clear, Blue, Black or Red
  • Hub Style: Rear
  • Axle Size / Bore: 1" or 1-1/4"
  • Keyway: 1/4"
  • Bolt Patterns:
    (3) 1/4-28 Bolt Holes on a 2-1/2" Bolt Circle
    (3) 5/16-24 Bolt Holes on a 2-1/2" Bolt Circle
Hardware Included:
  • (3) 5/16" x 1-1/2" Socket Head Cap Screw 
  • (8) 1/4-28 x 3/8" Socket Head Button Head Cap Screw
  • (4) 1/4" x 1" Button Handle Quick Pin with O-Ring

 


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