51T

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51THard Anodized Black1/2` x...

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51THard Anodized Black1/2` x 1/8`StandardUPC/EAN/GTIN: 850014520892

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51THard Anodized Grey1/2` x...

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51THard Anodized Grey1/2` x 1/8`StandardUPC/EAN/GTIN: 850014520311

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51TPolished Silver1/2` x...

Precision double CNC machined 144bcd reliable track chain rings sized 47-65 toothPolish silver or hard anodized finish, profiled teeth = free watts144mm 5-bolt51TPolished Silver1/2` x 1/8`StandardUPC/EAN/GTIN: 850014520120

 CNC machined 6061-T6 aluminum construction 144mm 5-Bolt BCD pattern Track or Fixie applications Made in the U.S.A. 144mm 5-bolt 51T 6061-T6 Silver 1/2`...

 CNC machined 6061-T6 aluminum construction 144mm 5-Bolt BCD pattern Track or Fixie applications Made in the U.S.A. 144mm 5-bolt 51T 6061-T6 Silver 1/2` x 1/8` StandardUPC/EAN/GTIN: 072774207930