Amir Avitzur wrote:
>Tony Oliver's book mentioned that care must be taken when choosing a front
>derailleur.
>He used Simplex LJ's as his examples - narrow range double, wide range
>triple, and wide range double.
>
>But he wasn't more specific than that.
>
>I need a wide range double for a 52/36 chainring combination.
>
>Any recommendations?
>
>This is for a 70's Bertin with a TA Pro-3 crankset.
>
>Amir Avitzur
>Ramat-Gan, Israel
>
>
>
I'm smoothly shifting this ring combination with a Suntour ARX front derailleur on a Sugino GT crankset. Both of which are near the end of the CR timeline, but I don't think the ARX is actually much different than earlier Suntour units which may be more period correct for your application.
I won't go into details on the rear, other than to say I am using a Shimano road triple derailleur.
IMO it makes for some nice gear combinations for flexibility without having to go to triple chainrings.
Marcus Coles
London, Ontario, Canada