Balance factor for a Norvin

[BigEd]

Have owners of Vincent twin engines mounted in a Norton Featherbed frame changed the crank balance factor? If so what figure did they find best?

 

[Pete Appleton]

Norvin Balance

Ed
This subject came up in a conversation that I was having with Steve at Maughans. As I haven't got a Norvin (yet) I didn't take too much notice of the figure that he quoted but it may be worth giving him a call, Number in back of MPH

Pete

 

[Rapide998]

I have a featherbed frame, Just wondering if anyone could tell me how I can tell whether it's a wideline or slimline. Please

 

[BigEd]

Wideline-Slimline

Imagine the original wideline Featherbed frame as basically two tubular "loops" parallel to one another. The slimline had the tubes bent inwards at the nose of the seat area to give a less knees out riding position.