Of the four generations of long cage New Success derailleurs, three generations were, as you might expect, simply longer cage versions of the respective short cage models.

But one generation, this one, was unrelated to the contemporary short cage model in any real way. This long cage New Success design is in fact a long cage version of the more lowly Sachs-Huret Rival 7000 series. It has its adjustment screws on the back of b-knuckle, not on the outer parallelogram plate, there are a lot of steel parts, it weighs a chunky 300+ grams, it's just not a true New Success.

With its knurled cable adjuster, this is a very nice example of an early Sachs-Huret New Success ATB (53.21T). Some of its key features are:

• It is branded Sachs-Huret.
• There is no sprung cable saver built into the cable stop.
• The cable adjuster is a simple knurled design.
• It has a rather strangely shaped steel pulley cage.
• It has steel pulley bolts.
• It has conventional pulleys running on bushes.

• Derailleur brands: Sachs-Huret
• Categories: Sachs-Huret - the stubbornly unsuccessful, Success
• Country: Germany, manufactured in France
• Date of introduction: 1989?
• Date of this example: 1990 - the inner parallelogram plate is stamped ‘4390’ - week 43 1990
• Model no.: 53.21T, article number 54 1100 401 201
• Weight: 313g
• Maximum cog: 32 teeth?
• Total capacity: 34 teeth?
• Pulley centre to centre: 90mm
• Index compatibility: 7 speed
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: mainly aluminium, with a steel inner parallelogram plate and pulley cage plates