Husqvarna 550XP TrioBrake Chainsaw Chain 20" (50cm) - Oregon PowerCut 21LPX078E - 78 Drive Links 21LPX064E - Oregon Chainsaw Chain

21LPX064E - Oregon Chainsaw Chain - 64 Drive Links fits 15" (37cm) Husqvarna 560 XPG chainsaw

The semi chisel cutters on the 91PXL are 33% longer than the 91PX

This bar uses a 135 drive link

3003 000 5217 - Stihl Light06 Chainsaw Guide Bar - 18" (45cm)

Less friction

Husqvarna 550XP TrioBrake Chainsaw Chain 20" (50cm) - Oregon PowerCut 21LPX078E - 78 Drive Links 21LPX064E - Oregon Chainsaw Chain21LPX078E Oregon Chainsaw Chain 78 Drive Links fits 20" (50cm) Husqvarna 550 XP TrioBrake chainsaw using an Oregon 20" 208SLGK095 & 208VXLGK095 guide bar. The Husqvarna guide bar uses an 80 drive link chain. Highly experienced loggers and skilled forestry workers require precision, power and speed to get through a hard day's work. Oregon's PowerCut saw chain possess all of these qualities. PowerCut is a full chisel chain that cut quickly and precisely