Arai Drum Brake (red/blue later version)
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Category:  Brakes
Name:  Arai Drum Brake (red/blue later version)
Brand:  Arai
Model:  
Years:  N/A
Country:  Japan
Added By: Catnap on 01/30/12
Updated By: peterbman on 09/13/14
Additional Photos - click for full size
Arai Drum Brake (red/blue later version)Arai Drum Brake (red/blue later version)
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Design Category Drum brakeCable AdjusterNo
Quick Release NoAttachment Bolt TypeDual Post Braze-on
Cable Attachment BoltFront of Arm Markings
Back of Arm MarkingsReach CategoryN/A
Min ReachMax Reach
General Information
"Drum brakes, either built into the hub or screwed onto threads similar to freewheel threads have long been popular for heat dissipation on tandems used in hilly terrain. The standard of the industry is the very reliable Japanese Arai unit. The drum screws on to the left side of most tandem rear hubs, and the mechanism plate with the internal expanding shoes is secured to the axle by a lock nut. There is a reaction arm which must be securely attached to the chain stay... all of the braking force is transferred through this arm, and if it comes loose, it creates a mess."

Description by Sheldon Brown, from his website at:  http://sheldonbrown.com/tandem-brakes.html
Quality:Rarity:
 
 
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Brand Information(click to expand)
Arai Industrial Co., Ltd. manufactures and sells automobile parts, bicycle parts, industrial equipment and materials. Founded in 1915, the company was incorporated in 1937 and is based in Aisai, Japan. Arai Industrial Co., Ltd. Arai operates as a subsidiary of Sumikin Bussan Corp. 

Arai continues to manufacture bicycle parts, primarily brake mechanisms.  The make entry-level side-pull calipers and disc brakes.  However, they are most widely known for their rear-wheel mounted drum brakes, typically used on tandem bicycles.  Their website is http://www.arais.co.jp/english. 
 
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