advant-edge question


A 48-40 Advant-edge is similar to a 51/43 Yammie. They act about 3.5* steeper on the initial, and 3* on the finish than stated degrees.
 
An Advant-Edge 51/43 helix is slightly steeper than the Yamaha 51/43. The 48/40 is close to the Yamaha 51/43, but the 48/40 isn't quite as steep on the finish.
 
48/40 advant-edge will your rpm,s about 2-300 from a 51/43 RX-1 helix
 
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