Main features

  • Steel cage
  • Medium for Mega sprocket 30-34T cage
  • Max. sprocket: 28T
  • Total capacity: 33T (RD-R42S) / 39T (RD-R42)
  • Weight: 265g (RD-R42S) / 288g (RD-R42)


Rear Derailleur for 3 x 9/10s, long cage, max. sprocket: 28T, total capacity 39T


Rear Derailleur for 2 x 9/10s, short cage, max. sprocket: 28T, total capacity 33T

Categories: , ,

Technical Specifications

Model No.RD-R42RD-R42S
Speeds9 / 8 Speed, Long cage9 / 8 Speed, Short cage
Max Sprocket28T
Min Sprocket11T
Total Capacity39T33T
Guide PulleySteel bushing
Tension PulleySteel bushing
Bracket BodyAluminum / black
Bracket Pivot SealN
Plate BodyComposited / black
Plate Pivot SealN
Outer LinkAluminum / hi-polish
Inner LinkSteel / black
Link Pin Bushing-
Outer PlateSteel / black painted
Inner PlateSteel / black painted
CompatibilityShimano 9/8 Speed Road Rear Derailleur Compatible

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