Truett & Osborn
Truett & Osborn produces precision V-twin flywheel assemblies and crankshaft systems designed for Harley-Davidson engine builds and performance upgrades. The brand is widely searched for motorcycle flywheel assembly, Harley crankshaft flywheel set and V-twin engine stroke kit due to its reputation in high-performance engine balancing and durability.
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V-Twin - 10-1652 - Truett and Osborne 45 inch Flywheel Set
Truett & Osborn
$927.98V-Twin - 10-1652 - Truett and Osborne 45 inch Flywheel SetDescription3-13/64" stock stroke flywheel set is machined to accept XL 1957-1981 crank pin and connecting rod set. Fits:G 1941-1973W...$927.98 -
Out of stock
V-Twin - 10-1124 - 80 inch Flywheel Assembly
Truett & Osborn
$1,063.67V-Twin - 10-1124 - 80 inch Flywheel AssemblyDescriptionTruett & Osborn flywheel assembly feature original weight right and left sides. 4-1/4" stroke flywheel for 80" motor application.Sold as a pair...$1,063.67 -
V-Twin - 10-1114 - Stock Flywheel Assembly
Truett & Osborn
$1,064.12V-Twin - 10-1114 - Stock Flywheel AssemblyDescriptionTruett & Osborn flywheel assembly feature original weight right and left sides for use with 80" stroker motors and tapered crank pin hole. Fits:FL...$1,064.12 -
V-Twin - 10-1105 - 61 inch Stock Flywheel Assembly Bare
Truett & Osborn
$1,063.99V-Twin - 10-1105 - 61 inch Stock Flywheel Assembly BareDescriptionTruett & Osborn 61" flywheel assembly feature original weight right and left sides with 3-1/2" stock stroke. Set is for EL models...$1,063.99 -
V-Twin - 10-1068 - Truett and Osborne Flywheel Set Bare
Truett & Osborn
$726.77V-Twin - 10-1068 - Truett and Osborne Flywheel Set Bare Description Bare set features original weight right and left sides.Sold as a pair. Fits: K 1952-1956 Additional...$726.77 -
V-Twin - 10-1049 - Truett & Osborne Flywheel Set
Truett & Osborn
$974.05V-Twin - 10-1049 - Truett & Osborne Flywheel SetDescriptionBare flywheels for side valve models feature original weight right and left sides. Fits:WL 1937-1952G 1937-1973DL 1929-1931WL...$974.05 -
V-Twin - 10-1043 - 61 inch Stroke Flywheel Assembly Bare
Truett & Osborn
$1,063.99V-Twin - 10-1043 - 61 inch Stroke Flywheel Assembly BareDescriptionTruett & Osborn 61" flywheel set with stock 3-1/2" stroke features original weight right and left sides. Set is for EL models...$1,063.99 -
V-Twin - 10-1030 - Truett and Osborne Stock Flywheel Set
Truett & Osborn
$974.71V-Twin - 10-1030 - Truett and Osborne Stock Flywheel SetDescriptionFlywheel set features original weight right and left sides.Sold as a pair. Fits:XL 1981-1985Additional Information OEM No.23916-81 ...$974.71 -
V-Twin - 10-1029 - Truett and Osborne Stock Flywheel Set
Truett & Osborn
$1,064.11V-Twin - 10-1029 - Truett and Osborne Stock Flywheel SetDescriptionFlywheel set feature original weight right and left sides with stock stroke. Fits:FL 1970-1971FX 1971Additional Information UOM1 -...$1,064.11 -
V-Twin - 10-1028 - Truett and Osborne Stock Flywheel Set
Truett & Osborn
$863.39V-Twin - 10-1028 - Truett and Osborne Stock Flywheel SetDescriptionFlywheel set features original weight right and left sides with stock stroke. Fits:FX 1972-1978FL 1972-1978Additional Information ...$863.39 -
V-Twin - 10-1027 - Truett and Osborne Flywheel Set Stock
Truett & Osborn
$1,064.11V-Twin - 10-1027 - Truett and Osborne Flywheel Set StockDescriptionFlywheel set feature original weight right and left sides.*NOTE: Flywheel made with the 1941-up Overhead Valve crankpin, NOT the...$1,064.11 -
V-Twin - 10-1026 - Truett and Osborne Stock Flywheel Set
Truett & Osborn
$853.08V-Twin - 10-1026 - Truett and Osborne Stock Flywheel SetDescriptionFlywheel set with 6 taper features original weight right and left sides with stock stroke. Fits:FLT 1981-1984FXR 1982-1984FL...$853.08 -
V-Twin - 10-1012 - Truett and Osborne Stock Flywheel Set
Truett & Osborn
$983.80V-Twin - 10-1012 - Truett and Osborne Stock Flywheel SetDescriptionTruett and Osborne stock flywheel set features original weight right and left sides. Fits:XL 1957-1980Additional Information OEM No...$983.80 -
V-Twin - 10-1006 - Truett and Osborne 4 inch Stroke Flywheel Assembly
Truett & Osborn
$2,090.00V-Twin - 10-1006 - Truett and Osborne 4 inch Stroke Flywheel AssemblyDescriptionFlywheel assembly feature original weight right and left sides with 4" stroke. Fits:FL 1956-1969Additional Information ...$2,090.00 -
Out of stock
V-Twin - 10-1005 - Truett and Osborne Stock Flywheel Assembly
Truett & Osborn
$1,063.33V-Twin - 10-1005 - Truett and Osborne Stock Flywheel AssemblyDescriptionFlywheel assembly feature original weight right and left sides with stock stroke. Fits:FL 1941-1953Additional Information OEM...$1,063.33
Truett & Osborn Performance Engine Systems – Motorcycle Flywheel Assemblies, V-Twin Crankshaft & Stroke Kits
Truett & Osborn is a performance-focused engine component brand specializing in V-twin flywheel assemblies, crankshaft flywheel sets and stroke configurations for Harley-Davidson and custom motorcycle engines. The brand is strongly associated with high-volume search terms such as Harley flywheel assembly, V-twin crankshaft kit, motorcycle engine flywheel set and performance engine stroke kit, making it a trusted choice among engine builders and performance tuners.
The product range includes stock flywheel assemblies, high-performance flywheel sets and stroke-specific crank assemblies designed for 45-inch, 61-inch, 80-inch and custom engine configurations. Products like Truett & Osborn flywheel sets, bare flywheel assemblies and stock replacement crankshafts are frequently searched under keywords such as Harley engine rebuild kit, motorcycle crankshaft assembly and V-twin bottom end engine parts. These components are engineered for precision balance, improved engine stability and long-term reliability in both stock and performance builds.
Truett & Osborn products are widely used in Harley engine rebuilding, custom chopper builds and high-performance V-twin tuning applications. Mechanics and builders searching for motorcycle engine bottom end kit, Harley crankshaft replacement and performance flywheel upgrade often choose Truett & Osborn for its engineering accuracy and proven durability. The brand continues to be a trusted name in the V-twin performance engine industry.