The microSHIFT M55 has a certain style. Perhaps it is a touch derivative of a SRAM design, and the inner parallelogram plate would not be out of place on the tackiest Chinese copy of a Shimano Tourney - but these things apart, the M55 looks and feels pleasant.

Another interesting effort from microSHIFT.

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1. •Brand: microSHIFT, manufactured by SunRace
   

2. •Country: Taiwan
   

3. •Date of introduction: 2007?
   

4. •Date of this example: 2007?
   

5. •Model no: M55
   

6. •Weight: 227g
   

7. •Maximum cog: 34 teeth (source: microSHIFT)
   

8. •Total capacity: 45 teeth (source: microSHIFT)
   

9. •Pulley centre to centre: 98mm
   

10. •Index compatibility: 9 speed
    

11. •Chain width: 3/32”
    

12. •Logic: top normal
    

13. •Pivots: two pivots, front sprung and rear unsprung
    

14. •Material: Largely aluminium (including the hanger bolt), with plastic front knuckle and steel inner parallelogram plate.
    

0397/N