Solidify the Harley crankcase
Start with the cases
Timken bearing upgrade
Timken bearing upgrade
Your cases or ours. This is the foundation, no shortcuts here!
Timken bearing upgrade
Timken bearing upgrade
Timken bearing upgrade
Convert your drive side case to the stronger Timken bearings. Remove the weak link in your lower end.
Balance & Blueprint
Timken bearing upgrade
Balance & Blueprint
All Harley crankwork is done at the Darkhorse facilities
Darkhorse Specs & Warranty
Specs
We true all crankshafts to within .0015” total indicated run-out at each main bearing race and guarantee all street/OEM applications to stay within .0005” for 2 years and unlimited mileage.