Originally Posted by
Ballistik Mods
This a great subject .
The original idea was to lighten the crank and silicone putty was a good way of filling the hole left from drilling.Manufacturers noticed a positive effect in shaping the silicone.
If you want to lighten a shaft for less mass rotation you must take it from the outside and not from the center....
Thats why MAX is still using 14mm crankshafts and not the 14.5mm
Originally Posted by
Ballistik Mods
The use of putty is not to save on tooling wear. shaping the crank in its original form rather than using silicone is pointless as the original objective was to lighten the crank in aid of quicker spooling .
Actually it does save time and tools to create such a shape directly in the crankshaft. Producing in large numbers (60.000 a year regarding their promo movie) a short machine time and less maintenance and recalibration is wanted