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  3. SIMPLEX AR637

SIMPLEX Prestige Rear Derailleur Claw Hanger AR637/P

Ar637 Simplex 1972 Prestige Ar637/p Rear Derailleur With Claw Hanger - Excellent Cond

( Brand: Simplex ), ( Manufacturer Part Number: AR637 ), ( Model: SIMPLEX PRESTIGE AR637/P ), ( Part Type: Derailleur Hanger ), ( Color: Silver And Black ), ( Material: Aluminum Alloy, Plastic, Steel ), ( Mounting Type: Optional To Use Attached Claw Or Bolt On To Hanger ), ( Number Of Speeds: 10 Speed ), ( Compatible Bike Type: Racing Bike, Road Bike, Touring Bike ), ( Country Of Origin: France ), ( Item Weight: 253 Grams ), ( Derailleur Cage Length: Medium Cage )

Review SIMPLEX Prestige Ar637/p Rear Derailleur Claw Hanger Excellent Cond

Simplex AR637 1972 Prestige Rear Derailleur Claw Hanger A Piece of Cycling History

Step back in time with the Simplex AR637 1972 Prestige Rear Derailleur Claw Hanger. This vintage component is a testament to the rich heritage of cycling mechanics and a must-have for collectors and enthusiasts alike.

The Simplex AR637, a iconic design from the 1970s, represents the pinnacle of retro cycling aesthetics. Its sleek, minimalist design, with smooth lines and polished finishes, adds an undeniable touch of elegance to any classic bicycle. The Prestige label signifies that this derailleur offers premium performance and durability, making it a reliable choice for those seeking a authentic retro riding experience.

This rear derailleur hanger is crafted from high-quality materials, ensuring it can stand the test of time. The claw hanger design offers secure mounting to your bicycle's dropout, while the precision-engineered gearing mechanism ensures smooth and accurate shifting, even under heavy load.

The AR637/P is not just a functional part, but also a piece of cycling history. Its design was revolutionary in its time, influencing the development of modern derailleurs. By installing this derailleur hanger, you're not only upgrading your classic bicycle, but also paying homage to the golden age of cycling.

In conclusion, the Simplex AR637 1972 Prestige Rear Derailleur Claw Hanger is more than just a mechanical component. It's a symbol of cycling's rich history, a testament to mechanical engineering, and a key to unlocking the true vintage spirit of your classic bicycle. Experience the past, ride the present, with the Simplex AR637 1972 Prestige Rear Derailleur Claw Hanger.

The Simplex AR637 1972 Prestige AR637/P Rear Derailleur Claw Hanger is a vintage cycling component that may appeal to collectors or enthusiasts of classic bicycles. Here are some pros and cons to consider:

Pros:

1. Authenticity: This derailleur is a genuine piece of cycling history. It was produced in 1972 and has a classic design that might add an interesting aesthetic touch to your bike.

2. Quality Craftsmanship: Simplex was known for its high-quality components, and this derailleur is no exception. Its construction is robust, and it is built to last.

3. Functionality: Despite being vintage, this derailleur can still function effectively on a properly adjusted bike. It can handle a wide range of gears, making it suitable for various terrain types.

Cons:

1. Compatibility: This derailleur may not be compatible with modern drivetrains due to differences in frame geometry, cable routing, and gear ratios.

2. Maintenance: Older components can be more difficult to maintain and repair compared to modern derailleurs. Replacement parts might be hard to find, and you may need to perform repairs yourself or seek out a specialized mechanic.

3. Performance: While this derailleur is built to last, its performance may not match that of modern derailleurs. Shifting may not be as smooth, and it may not handle steep climbs or quick changes in cadence as effectively.

In conclusion, the Simplex AR637 1972 Prestige AR637/P Rear Derailleur Claw Hanger is a unique and well-crafted component with a rich history. However, it may not be the best choice for those seeking high performance or compatibility with modern bikes. If you are a collector, enthusiast, or if you are restoring a vintage bike, this derailleur could be an excellent addition. For those prioritizing modern performance and compatibility, it might be worth considering a more contemporary derailleur.

Details:

Ready for immediate use. See photos including Simplex Fitting Instructions Source: Disraeli's.co.UK, Great addition to any French vintage road bike Gotten, Peugeot, Motorbiking, etc. From the 1970s and 1980 designed to work with 3,4,5 and 6 Speed freewheels 1/8 3/32 chains. Cage and Sun tour replacement pulley wheels in excellent condition with date code of 1972 stamped on inner cage plate.

All pivot springs are strong and derailleur has been overhauled greased. Total gear capacity of 37 teeth and freewheel sprockets between 13 to 28. Special note claw hanger can be easily removed for direct 'bolt on mounting. Can also be installed on other bikes that take claw hangers or have an integral hanger.

No cracks anywhere on body. Excellent condition with very light scratches on exterior lower pivot bolt.

part #: ar637 prices

  • $8.95-$45.00

specifications ribicycl:

  • brand: Simplex
  • mpn: Ar637
  • model: Simplex Prestige Ar637/p
  • part type: Derailleur Hanger
  • color: Silver And Black
  • material: Aluminum Alloy, Plastic, Steel
  • mounting type: Optional To Use Attached Claw Or Bolt On To Hanger
  • number of speeds: 10 Speed
  • compatible bike type: Racing Bike, Road Bike, Touring Bike
  • country of origin: France
  • item weight: 253 Grams
  • derailleur cage length: Medium Cage

general ribicycl:

  • Cycling > Bicycle Components Parts > Rear Derailleurs
  • condition: Used

returns ribicycl:

  • time: 30 Days
  • method: Money back
  • paid by: Buyer
  • policy: Returns Accepted

shipping ribicycl:

  • transit: 4-10 Days
  • class: Standard
  • carrier: USPS
  • cost: $8.31
  • service: USPS Ground Advantage
  • type: Calculated

payments ribicycl:

  • credit card: Diners-club
  • other
  • wallet: Apple-pay

seller ribicycl:

  • rating: 100.0%
  • # reviews: 196
  • city: Davis, California

offer ribicycl:

  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • started: November 16, 2025
part type: derailleur hanger, mounting type: optional to use attached claw or bolt on to hanger, number of speeds: 10 speed, compatible bike type: racing bike, road bike, touring bike, country of origin: france, item weight: 253 grams, derailleur cage length: medium cage,
category: sporting goods > cycling > bicycle components parts > rear derailleurs, color: silver and black, material: aluminum alloy, plastic, steel, sku: 15489976951388611,
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4 offers $8.95–$45.00 USD
  • New other (see details). Offer #1 priced at $45.00 + $8.50 shipping estimate = $53.50* total. Instructions included Model number A.+$8.50 shipping
  • Used. Offer #2 priced at $20.97 + $9.14 shipping estimate = $30.11* total. Made of Delrin and Steel. Simplex Prestige NI rear derailleur.+$9.14 shipping
  • New other (see details). Offer #3 priced at $8.95 + $0.00 shipping estimate = $8.95* total. FREE SHIPPING
  • Used. Offer #4 priced at $99.99 + $0.00 shipping estimate = $99.99* total. Vintage 1970s ts Le SIMPLEX PRESTIGE MECHANISM A.R.FREE SHIPPING

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