23-029-70 Knuckle Performance, Overbearing 2.0
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Specifications
- Brand
- Bare knuckle performance
- Part Number
- 23-029-70
- OEM Reference
- 35211-36
- Pack Quantity
- Sold as kit
- Category
- Inner Primary Bearings
- VAT Rate
- 20%
About This Product
This Bare Knuckle Performance Overbearing 2.0 is a hardened replacement for the stock mainshaft lock nut, OEM reference 35211-36, featuring a precision ground roller bearing pressed into its center. The black oxide finished hexagonal body is laser-etched with the Bare Knuckle Performance branding and designed to keep your transmission mainshaft and main drive gear perfectly concentric. By supporting the maindrive gear bushing, it eliminates premature wear and stops those annoying mainshaft leaks common on early machines with tin primary housings. This narrower 2.0 version clears all regular stock and aftermarket clutch hubs without interference. It fits 1936 through 1964 Big Twin models, offering a proper bearing support solution where the factory provided none. Sold as a kit.
Manufacturer part number: 23-029-70.
Fitment
24 models36-64 Big Twin
OHV 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1936–1947 | Knucklehead E-1000 |
| Harley-Davidson | 1936–1948 | Knucklehead EL-1000 |
| Harley-Davidson | 1936–1945 | Knucklehead F-1200 |
| Harley-Davidson | 1936–1947 | Knucklehead FL-1200 |
| Harley-Davidson | 1948 | Panhead F-1200 |
Sidevalve 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1942 | Flathead EL-1000 |
| Harley-Davidson | 1937–1948 | Flathead U-1200 |
| Harley-Davidson | 1938–1948 | Flathead UH-1300 |
| Harley-Davidson | 1938–1946 | Flathead UL-1200 |
| Harley-Davidson | 1937–1945 | Flathead ULH-1300 |
| Harley-Davidson | 1936 | Flathead VL-1200 |
| Harley-Davidson | 1936 | Flathead VLH-1300 |
Touring 12 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1958–1964 | Duo Glide FL-1200 |
| Harley-Davidson | 1958–1964 | Duo Glide FLF-1200 |
| Harley-Davidson | 1959–1962 | Duo Glide FLH-1200 |
| Harley-Davidson | 1963 | Duo Glide FLHF-1200 |
| Harley-Davidson | 1949–1951 | Hydra Glide E-1000 |
| Harley-Davidson | 1950–1952 | Hydra Glide EL-1000 |
| Harley-Davidson | 1949–1952 | Hydra Glide F-1200 |
| Harley-Davidson | 1949–1957 | Hydra Glide FL-1200 |
| Harley-Davidson | 1953–1956 | Hydra Glide FLE-1200 |
| Harley-Davidson | 1953–1955 | Hydra Glide FLEF-1200 |
| Harley-Davidson | 1953–1957 | Hydra Glide FLF-1200 |
| Harley-Davidson | 1955–1957 | Hydra Glide FLH-1200 |
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