HARD TO FIND SHIMANO 7 SPEED SL-RS31 -7T RAPID RISE REVOSHIFT GRIP SHIFT BIKE RIGHT INDEX SHIFTER. ITS GEARED RATCHET SYSTEM GIVES A VERY LIGHT ANDPRECISE SHIFTING ACTION. THESE ARE ALSO SUITABLE TO BE USED WITH STANDARD SHIMANO DERAILLEURS SO PRETTY WELL ANY 7 SPEED GEAR SYSTEM.
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