• New, unused Shimano Dura Ace 13T first position threaded UniGlide cassette cog and made in Japan quality from 1995.
• Fits Dura Ace 7/8-speed UniGlide cassette hubs, only. I.D. of 32.0mm.
• Index and friction-shifting ready.
• For your 126/130mm cassette hub.
• FWSH.
• FREE shipping in the USA.