For indexed, I'd recommend either the 7400 Dura Ace models (Uniglide twist-tooth) or the last revision of the Sachs blocks which were designed for indexing and used the Shimano spline pattern (way better than 2 or 4-prong).
There's a Sachs here that sounds like it needs some heavy oil and a run-in:
For indexed, I'd recommend either the 7400 Dura Ace models (Uniglide twist-tooth) or the last revision of the Sachs blocks which were designed for indexing and used the Shimano spline pattern (way better than 2 or 4-prong).
There's a Sachs here that sounds like it needs some heavy oil and a run-in:
http://www.ebay.co.uk/itm/SACHS-MAILLARD-FREEWHEEL-7-SPEED-13-21T-3-32-Chain-ROAD-BIKE-FRANCE-VGC-/270945424232?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item3f159b1368#ht_500wt_1004