+1 to that I have the CX450 Black angel (beam E4 clone) both the beam and the BA have the double flanged pulley which in fact does hold the belt in contact with more teeth on the tail pulley, especially important if the belt gets loose. this will keep the tail turning and keep the belt from skipping teeth alot bettter than without.
I get that if you are running a heli with a problematic belt drive you might want to remove the pulley as a quick fix. But IMHO the way to go is to fix the tracking problem and get a better pulley, or just get an upgraded tail set and as always keep it properly lubed. I crash enough without having to worry about poor tracking, poorly designed idlers, or a loose belt causing me to plant it in the field.
The proper fix is less inexpensive than my worries or even one crash.
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MSRX
CX450 Black Angel Stretch DFC -HW 50v3, Hyperion 2221-6
3dx450b3 Scale Huey Rescue, TGY Sk3 3600kv, Yep 45a, Robird, CX rigid 3 blade head
Protos Carbon Stretch, MSH Scorpion, YGE, Ikon
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