The 1993 Shimano Tourney TY10 was one of Shimano’s very basic derailleurs -  it offered no SIS indexing, no Centeron pulley - nothing but your basic Skylark package. The only small change is the move of the cable clamp onto the outer parallelogram plate.

To keep costs down in the face of the advancing Taiwanese and Chinese competition, the TY10 was made in Singapore and also has noticeably tackier chrome than, say, the 1981 Shimano RS.

This example has the standard pulley cage length.

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1. •Brand: Shimano
   

2. •My category: Shimano - from Skylark to world domination
   

3. •Country: Japan, manufactured in Singapore
   

4. •Date of introduction: 1993?
   

5. •Date of this example: 1993 (two letter code RD - yes, really)
   

6. •Model no: TY10 SS
   

7. •Weight: 293g including hanger plate
   

8. •Maximum cog: 30 teeth (Sutherland’s 6th edition)
   

9. •Total capacity: 30 teeth (Sutherland’s 6th edition)
   

10. •Pulley centre to centre: 54mm
    

11. •Index compatibility: friction
    

12. •Chain width: 3/32”
    

13. •Logic: top normal
    

14. •Pivots: two sprung pivots
    

15. •Material: steel
    

0188/F