Amir, I love the Suntour Cyclone GT you can run 16T difference on the front clangers and 18T on the rear block but I wouldn't go bigger than a 32T on the back. Huret Duopar is a good bet as well Tony use to ride these. Best wishes Mick B Hunts. UK.
> Tony Oliver's book mentioned that care must be taken
\r?\n> when choosing a front
\r?\n> derailleur.
\r?\n> He used Simplex LJ's as his examples - narrow range
\r?\n> double, wide range
\r?\n> triple, and wide range double.
\r?\n>
\r?\n> But he wasn't more specific than that.
\r?\n>
\r?\n> I need a wide range double for a 52/36 chainring
\r?\n> combination.
\r?\n>
\r?\n> Any recommendations?
\r?\n>
\r?\n> This is for a 70's Bertin with a TA Pro-3 crankset.
\r?\n>
\r?\n> Amir Avitzur
\r?\n> Ramat-Gan, Israel