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Ridley Bikes 4ZA Threadless Carbon Bicycle Handlebar Stems

Description: The recall involves all 4ZA 31.8 threadless bicycle handlebar stems sold as individual aftermarket components. The stems are black and have the words "4ZA Cycling Performance" painted on the carbon extension between the steerer clamp and handlebar clamp. The recalled stems range in extension lengths from 90mm to 130mm, approximately 3.5 to 5 inches. [Source]

Ridley Bikes 4ZA Threadless Carbon Bicycle Handlebar Stems
Bicycle Stems Recalled by Ridley Bikes Due to Fall Hazard

About 105 units were affected by this recall.

Ridley Bikes 4ZA Threadless Carbon Bicycle Handlebar Stems Recall Information

Country of OriginTaiwan
Recall Date05/22/2012
Recall ID1053
Recall Number12183
Product TypeBicycles & Accessories
HazardThe bicycle handlebar stems can crack or break, posing a fall hazard.
InjuriesThe firm received one report of a handlebar stem breaking resulting in minor injuries.
RemedyConsumers should immediately stop using their bicycles and contact the bicycle retailers where the stems were purchased to obtain a free replacement stem. Other bicycle shops can handle the replacement process by contacting the manufacturer's current distributor, Quality Bicycle Products, Inc.
Remedy OptionReplace
ContactFor additional information, please contact Quality Bicycle Products, Inc. ("QBP") toll-free at (877) 745-7703 between 8 a.m. and 6 p.m. CT Monday through Friday, or visit
Last Updated02/19/2015
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