Thread: Left sided shifter for Tiagra double and triple the same or different?
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Old 09-08-10 | 03:22 PM
  #5  
Bezalel
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Bikes: Raleigh Companion, Nashbar Touring, Novara DiVano, Trek FX 7.1, Giant Upland

Origionally the 4500 was sold for both double and triples. Then Shimano introduced the 4501 for doubles and made a 4503 (which is basically the same as the 4500) marketed to triples.
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