oldfart
Elite Veteran
Location: Vancouver, Canada
My Posts This: Topic Forum | To clarify the difference in the heads, here is a copy of my post in the Century Forum:
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| ..... but there is TWO big differences between the blade grips on the HD (Predator) head and those on the LT Radikal and 50NX, which related directly to the relative size of the blades that each were initially designed for.
The blade grip spacing on the HD (Predator) grips were designed for 690mm to 820mm blades that use 5mm blade bolts. The LT (Raven) grips were designed for the use of 600mm to 620mm blades that generally use 4mm blade bolts.
So, if you are using the HD head, be sure whatever blades you get can accommodate 5mm blade bolts.
Next is the difference in blade grip spacing. The HD head has a 17mm blade grip spacing to accommodate some of the larger blades that may have 16mm blade roots. On the other hand, the LT grips have the standard 14mm grip spacing that is the standard blade root thickness of 600mm to 620mm blades.
So when using 600 to 620mm blades with the LT grips, both the 4mm blade bolts and the 14mm blade roots that are standard with these sizes of blades, will work out fine.
The problem with the HD grips with these size of blades, is that you will need 2 x 1.5mm spacers on each grip to insure proper fitment, and you will also have to be sure that your blades can be used with the larger 5mm blade bolts, or use a 4mmID x 5mmOD bushing in the grip for use with an appropriately long 4MM blade bolt.
I would expect that Century will provide these spacers in future kits with the HD head and maybe some bushings and longer 4mm bolts, or something else, to allow the grips to use 4mm blade bolts, for use with all the different blades available in this size.
For now, any Canadian hobby shops that purchase the Radikals with the HD head, will have these items included by Leisure-Tech Products
Phil Noel
Leisure-Tech Products.
Always happy to help Centurians
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I feel a lot more will be found out soon
