| Crank Pins & Nuts by Jims |
| We start with a special order of steel from an American foundry, then saw, turn, mill, and grind all on numerical controlled machines. From sawing to the final phase of machining, each part is thoroughly inspected, and after heat treating, all threads go through a special process to make them withstand greater torque stress. On crank pins, approximately 50% more torque can be applied. All flywheel shafts are ground to a 16 micron finish or better unless otherwise specified. All ground diameters are concentric to well within .0003”, or less, to simplify all phases of flywheel truing and rebuilding. We strongly recommend using JIMS® high performance nuts. |
| Crank Pin and Nut Kits |
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| TEC # | Jims | ||
| 89298 | 3 Hole Pin 180 offset w/ Nuts | 23961-80ASK | |
| 89297 | 3 Hole Pin, Nuts & Keys Fits 'L81 up | 23961-80A3 | |
| 89296 | 2 Hole Pin, Nuts & Keys Fits 'L81 up | 23961-80A2 | |
| 89276 | 3 Hole Pin, Nuts & Keys Fits '41-E81 | 23961-413 | |
| 89275 | 2 Hole Pin, Nuts & Keys Fits '41-E81 | 23961-412 | |
| Crank Pin Big Twins Late ‘81-99 |
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| TEC # | Jims | |||
| 89300 | 1 Hole | 23961-80A1 | ||
| 89278 | 2 Hole | 23961-80A2 | ||
| 89299 | 3 hole Std | 23961-80A3 | ||
| 89293 | 3 hole O/S +001 | 23974-87-3 | ||
| 89295 | 3 Hole O/S +002 | 23975-87-3 | ||
| 89286 | 3 Hole 180 Offset | 23961-80A | ||
| 89280 | Crank pin nuts ‘81+ Jims | 23969-83 | ||
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Crank Pin Big Twins 1941-Early ‘81 |
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| 89282 | 2 Hole | 23961-412 | ||
| 89284 | 1 Hole | 23961-41 |
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| 89303 | 3 Hole | 23961-413 | ||
| 89285 | 180 Offset 3 Hole | 23961-41S | ||
| 89283 | .025 Shorter 3 Hole | 23961-41ST-3 | ||
| 89304 | Crank pin nuts ‘54-81 Jims | 23966-54 | ||
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Early Model Big Twin Crank Pins |
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| 89306 | K Model ‘52-53 | 3 Hole | 23960-52 | |
| 89307 | 61/74/80” ‘37-48 | 3 Hole | 23962-40 | |
| 89308 | 45” Model ‘37-73 | 1 Hole | 23960-29 | |
| Sportster Crank Pins |
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| TEC # | Jims | |||
| 89301 | XL ‘54-E81 | 2 Hole | 23960-542 | |
| 89302 | XL ‘54-E81 | 3 Hole | 23960-543 | |
| 89309 | XL L‘81-99 | 2 Hole | 23960-80A2 | |
| 89310 | XL L‘81-99 | 3 Hole | 23960-80A | |
| 89305 | XL Crank pin nuts '54-81 | 23967-54 | ||
| 89281 | XL Crank pin nuts ‘81+ | 23901-81 | ||
| Chrome Moly Crank Pins 100” Case Hard ACA |
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| “A CUT ABOVE TM” crank pins come complete with JIMS® ultimate nuts and key. These high quality crank pins took three years to develop due to our high standards. “A CUT ABOVE TM” crank pins come in two and three hole versions only, and are guaranteed against failure | ||||
| TEC # | Jims | |||
| 89287 | Big Twin Chrome-Moly | ‘41-E81 | 23961-41 | |
| 89288 | Big Twin Chrome-Moly | L81-99 | 23961-80 | |
| 89289 | Sportster Chrome-Moly | L81-99 | 23960-80 | |