We found some new-old-stock rear derailleurs.
The Simplex SX610 is the little brother to the famous Simplex SLJ5500 and SLJ 6600 that many experts think are among the best friction derailleurs ever made. Michael Barry of Mariposa fame, and perhaps the world's foremost derailleur expert, said that if equipping a bike for a 5 year world tour, he would use an SLJ5500 rear derailleur.
The fasteners and the parallelogram arms are steel on the SX610, rather than alloy as on the LJS5500 and SLJ6600. But some say that just makes them stiffer. The SX610 also has the more advanced drop parallelogram geometry that was clearly superior to the "straight" geometry on the SLJ5500, yet for some reason was never actively promoted by Simplex. Perhaps proud old Simplex didn't want to tout an advance copied from the Japanese.
The SX610 will handle 28 tooth cogs. Use with a 7 or 8 speed chain for the ultimate performance. Add a Simplex 102 or a Simplex SLJ523 front derailleur, and you'll have about as nice a friction derailleur system as has ever been made.
Thw SX610 uses the old Simplex style mount. That means it fits modern dropouts, but uses a bolt that goes through the back of the hanger. It's not a big deal, but confusing if you've never seen one.
We also have a few Huret Rival derailleurs. This is a very well designed late model classic derailleur. It handles 30t cogs and shifts beautifully. In fact, old magazine tests rated the shifting as "excellent". It is also a well built and rugged unit.
Front and rear Rival derailleurs would make a great, and reasonably priced, system for a randonneur or cyclo-touring bike.
UPDATE: We just found a small quantity of NOS Simplex Retrofriction levers. These are the very pretty type that Simplex made for Gipiemmi.
25 November, 2006
Posted by Velo Orange at 8:40:00 AM