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Product Details

Bare Knuckle Performance Overbearing For Harley Big Twin

Do you wake up in the night with a cold sweat because you're worried about the concentricity of your output shaft? The Bare knuckle Performance Overbearing and Overbearing 2.0 are designed to replace your factory mainshaft nut with a nut that includes a bearing. This greatly increases the concentricity of the shaft, resulting in less wear and less leaks. Harley later fixed this issue after 1964. The Overbearing is prefect for stock configurations and the Overbearing 2.0 is made with a lower profile for custom applications. 

Features:

  • Replaces mainshaft nut with a nut that includes a bearing
  • Compatible with 4 speed transmission: Panhead, Knucklehead, Flathead
  • Assure concentricity between your mainshaft and main drive gear
  • Eliminates bushing wear, and therefore mainshaft leaks
  • Choose from the original Overbearing, (for use with all OEM clutch and drive components), and Overbearing 2.0 (for use with aftermarket clutch and drive components)
  • Made in USA
Made in the USA
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style 1/2" Overbearing RevZilla Item #10326140 Store Sku MFR. Product #23-030-70 AvailabilityOut of Stock
Product Style 3/8" Overbearing 2.0 RevZilla Item #10326139 Store Sku MFR. Product #23-029-70 AvailabilityOut of Stock

This product DOES NOT FIT your 2020 Sherco 450 SEF-R Factory

This Product Fits
Harley Davidson
EL 1952
FL 1952-1964
FLF 1953-1964
FLH 1955-1964
FLHF 1955-1964
K 1952, 1953, 1954
KH 1954, 1955, 1956
KHK 1955, 1956
KHRTT 1955, 1956, 1957
KR 1955-1964
KRTT 1955-1963
Servi-Car (G) 45ci 1952-1964
Product Description
Part Numbers
Fitment
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