• Rare Shimano First Generation Crane / Dura Ace RD-D501 5/6/7-Speed Vintage Rear Derailleur. Out of box.
• Shimano did not have a Dura Ace RD until 1976. Until then, you got a Crane RD in a Dura Ace box.
• Iconic model and will take a 28T cog. Tight, straight, clean, no rust, strong springs, perfect mechanical and near-mint cosmetic condition.
• Ready for friction shifting.
• 261 grams/9.1oz.
• Made in Japan quality from 1973-76.
• RD553.
• FREE shipping in the USA.