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Columbus
My Store
Open Today Until 6pm
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
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Uh oh - Our system doesn't think this part will fit your 2025 Indian Roadmaster PowerPlus Limited (change vehicle selection)

We're sorry but all Type options for this product are currently out of stock.

You can be notified upon their arrival by choosing the Type option you are interested in and then entering your email in the box below.

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
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Uh oh - Our system doesn't think this part will fit your 2025 Indian Roadmaster PowerPlus Limited (change vehicle selection)

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 Style Item # Store SKU Manufacturer Product # Availability
Product Style 1/2" Overbearing Item # 10326140 Store SKU Manufacturer Product # 23-030-70 Availability Out of Stock
Product Style 3/8" Overbearing 2.0 Item # 10326139 Store SKU Manufacturer Product # 23-029-70 Availability Out of Stock
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