NOS Shimano Dura-Ace 10 Track / Pista Sprocket Tool #TL-SR20 hook spanner for lockring and Chain Whip in 1/2 x 1/8" #1300912 centurion its hard to tell which

its hard to tell which one it is now

English: BC1

165mm steerer (30mm threaded)

144mm steerer (45mm threaded)

774 gr (in Box)

NOS Shimano Dura-Ace 10 Track / Pista Sprocket Tool #TL-SR20 hook spanner for lockring and Chain Whip in 1/2 x 1/8" #1300912 centurion its hard to tell whichNOS Shimano Dura Ace 10 Track Pista Sprocket Tool #TL SR20 hook spanner for lockring and Chain Whip in 1 2 x 1 8" #1300912 Weight Gewicht : 380 g Size Gre : 1 2" x 1 8" Condition Zustand : New Old Stock (NOS), see pictures Neue alte Lagerware, siehe Bilder Production date Produktionszeitraum : 1977 1984 Please note Bemerkung : Even though it is labled Dura Ace 10 it wont fit Dura Ace 10 Track system as the chain size on this one is ment for standard