07-01-2014, 10:59 PM
the difference is in the type of shells / bearings used
hdi rods use sputter bearings, which will stand up to a lot more abuse than normal bearings - hence why they're so friggin expensive compared to xud shells
they also have different locating tabs so are not interchangeable between rods.
hdi rods use sputter bearings, which will stand up to a lot more abuse than normal bearings - hence why they're so friggin expensive compared to xud shells
they also have different locating tabs so are not interchangeable between rods.
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