SHIMANO FC-AD21 Adamas Ax Crank Set Bottom Bracket 50-40T
( Brand: Shimano ), ( Model: FC-AD21 ), ( Type: Cranksets ), ( Country/region Of Manufacture: Japan ), ( For Bike Type: Road Bike Racing ), ( Color: Silver )
Review SHIMANO 1982 83 Adamas Ax Crank Set Bottom Bracket Assembly
The 1982-83 Shimano FC-AD21 Adamas Ax Crankset is a vintage cycling component that showcases the classic style and superior craftsmanship of Shimano's heritage. This crankset is a perfect addition for any collector or enthusiast of vintage bicycles, or for those who appreciate the timeless appeal of retro cycling gear.
The FC-AD21 crankset features a 5-bolt axle design, known as the Adamas Ax system, which provides superior strength and durability. The crankarms are made of high-quality steel, which has been heat-treated to ensure optimal stiffness and power transfer. The crankset is available in a compact double chainring configuration, with a 50-tooth large ring and a 40-tooth small ring, offering a wide range of gearing options for various terrain and riding styles.
The chainrings are made of aluminum, which is lightweight and durable, reducing the overall weight of the crankset while maintaining strength. The chainrings are also designed with Shimano's tooth profile, providing smooth and efficient power transmission. The crankset is compatible with standard 1/8-inch chain and features a removable crankarm bolt for easy chain installation and maintenance.
The bottom bracket that comes with this crankset is a square taper type, which is a common standard for vintage bicycles. The bottom bracket features a sealed bearing design, which provides long-lasting durability and low maintenance. The bottom bracket is also compatible with a wide range of frame types, including those with threaded bottom bracket shells.
Overall, the 1982-83 Shimano FC-AD21 Adamas Ax Crankset is a high-quality vintage component that offers a classic look, smooth performance, and durability. Its compact double chainring configuration and wide range of gearing options make it versatile for various riding styles and terrains. Whether you're looking to restore a vintage bicycle or add a timeless touch to a modern build, this crankset is an excellent choice.
Pros of buying a 1982-83 Shimano FC-AD21 Adamas Ax crankset with a 50-40t bottom bracket:1. Vintage appeal: The Shimano FC-AD21 crankset is a classic from the 1980s, which can add a unique and nostalgic touch to your bike.
2. Durability: Shimano cranksets are known for their high-quality materials and construction, ensuring long-lasting performance.
3. Versatility: With its 50-40t chainring configuration, this crankset provides a wide gear range, making it suitable for various terrains and riding styles.
4. Affordability: Compared to newer, high-end cranksets, the FC-AD21 is often more affordable, making it an attractive option for budget-conscious cyclists.
Cons of buying a 1982-83 Shimano FC-AD21 Adamas Ax crankset with a 50-40t bottom bracket:1. Compatibility issues: Due to its age, the FC-AD21 may not be compatible with modern bikes or components, requiring additional adapters or modifications.
2. Lower efficiency: Older cranksets may not provide the same level of power transfer and efficiency as newer designs.
3. Limited availability: Finding replacement parts or servicing options for this vintage crankset can be challenging, as they are no longer in production.
Conclusion:The 1982-83 Shimano FC-AD21 Adamas Ax crankset with a 50-40t bottom bracket is a great choice for cyclists looking for a classic, durable, and affordable option. However, its age and potential compatibility issues should be considered before making a purchase. Prospective buyers should research and ensure that the crankset will work with their bike and components, or be prepared to make modifications.
Recommendation:If you're a vintage bike enthusiast or simply want to add a unique touch to your bike, the Shimano FC-AD21 crankset could be a worthwhile investment. Ensure you have a clear understanding of the potential compatibility issues and have a plan for servicing or replacement parts. Alternatively, consider newer, high-performance cranksets if you're looking for a more efficient and reliable option.
Details:
This came off a huffy rewind 12-speed abed ready to serve the next bike rebuild for years come. They do have a little light surface rust on the MW-teeth. Chain ring teeth do show some ware, but still have many years of enjoyable riding in them. These rings use the Shimano integrated steel MW-teeth that you can see in pictures.
Nice condition crank set with bottom bracket assembly. I have taken closeups of the teeth your evaluation. 170mm crank arm length pedal threading is perfect BB spindle to mounting clean, tight and undamaged. This bottom bracket used cups that were press fit into the frame shell.
Raceway on bottom bracket is clean and smooth.
part #: fcad21 prices
- $42.81-$566.00
specifications vintagebikepartiz:
- brand: Shimano
- model: Fc-ad21
- type: Cranksets
- country/region of manufacture: Japan
- for bike type: Road Bike Racing
- color: Silver
Returns vintagebikepartiz:
- time: 14 Days
- type: Money Back
- paid by: Buyer
- policy: returns accepted
Seller vintagebikepartiz:
- zipcode: 53144
- city: Kenosha, Wisconsin
General vintagebikepartiz:
- in stock: Yes
- sporting goods > cycling > vintage cycling sporting goods > vintage bicycle parts
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- handling: 3 days
- type: Calculated
- cost: $0.0
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Offer vintagebikepartiz:
- quantity: 1
- best offer: true
- Started: December 15, 2017, 3:20 pm
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- perfect buyer 12-07-17
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- Fast Payment Great Buyer AA Transaction - 365Cycles 12-07-17
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