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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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Lower end motorcycle parts for racing applications.

Products > Race Components > Lower End

Displaying 1 - 30 of 39 Product(s):
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45° Cast Pro Stock Crankcases
$3,125.00
  • For S&S Pro Stock Engines
  • Choose Length
$899.95

 

  • Bushing Style
  • Hardware and Special S&S Gearcover Gasket Included
  • Billet, Natural Finish
  • 1986 –1990 Sportster®
$499.95
  • Needle Bearing Style
  • Hardware and Special S&S Gearcover Gasket Included
  • Billet
  • Natural Finish
  • 1986–'90 XL
$499.95
  • 1986–1990 (four-speed)
  • For Cast S&S® Pro Stock Cases
  • Hardware and Special S&S Gearcover Gasket Included
$499.95
  • 1.250" Diameter
  • Black Steel
$5.50
  • HH, 1-5/16-20 UN-3B X .250"
  • Black Steel
$27.95
  • HH, 1-5/16-20 UN-3B X .345"
  • Black Steel
$24.95
  • Press-In, Weld-In
  • 1.250" Diameter
  • Standard or Oversize
$229.95
  • Press In, Weld In Crankpin Assembly
  • Race Applications, 1.500"
  • Standard or Oversize
$299.95 - $314.95
$339.95
  • Press-In Weld-In 1.250" Diameter
  • Standard and Oversize
$229.95 - $239.95
  • Press-In Weld-In 1.500" Diameter
  • Standard and Oversize
This item is out of stock
This item is out of stock
  • For 1.250" or 1.500" Crankpins
  • Phosphor Bronze
This item is out of stock
  • Fits S&S Gearcovers
  • 1986–2003 XL
$3.65
    <
  • Fits S&S Gearcover without Filter Boss
  • 1986–2003 XL
$7.45
  • 1.125" X 1.561" X .250"
  • 1971–Up XL
$7.90
  • Pinion Bearing Retaining Ring
  • For 1-1/2" Diameter Shaft
  • 1970–Up
$43.95
$450.95
  • Press-In Style
  • +.375", Standard Bearing Diameter
  • 1999–Up Big Twins
$251.95
  • For 1.5" Diameter Crankpin
  • Fits S&S Connecting Rods Only
$62.95 - $74.95
$34.95
  • 1.250" Standard
  • 17 rollers
  • Alloy
$41.45
$1,895.00
Special Application Big Bore Crankcases for 1999–Up Big Twins (106-0505)
  • 4 3/8" Bore
  • 1999–'06 Big Twins except 2006 Dyna®
  • Racing Applications
$2,494.95
$595.00
$745.00
$605.00
  • Fits special order S&S flywheels only used in Delkron 4 cam cases
$200.95