I bought the Oregon Lightweight VersaCut bar and 20LGX full chisel chain with my new Echo CS501P. I chose an 18" bar for the balance and because I didn't want to over-bar a 50cc saw. It's a PERFECT combo. I've only burned through the first tank while starting the break in and tuning, but I couldn't be happier with my choice in saw and bar/chain. It's a fantastic little saw that weighs 14lbs on the nose with that bar and chain, and full fuel and oil. I've stayed in clean wood and haven't sharpened the chain yet, but right out of the bag it was strong cutting chain
