Major upgrade for the K110s, looks very cool indeed, flight is much more stable not that the K110s is bad to start off with, this just makes it that bit crisper. Another positive is the head and rotor noise is much quieter in flight too. Very quick to fit but take your time on the leveling and servo set up. Apply thread lock and lubricants as required and you will wonder why you didn't upgrade sooner. As always delivered in double quick time from banggood, very pleased

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