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Ridley Bikes Sinclair Imports Quality Bicycle Products Race Productions 4ZA Threadless Carbon Bicycle Handlebar Stems

May 22, 2012
Sold At: 

The stems were sold at specialty bicycle retailers and via websites from January 2005 through April 2010 for about $59.


The bicycle handlebar stems can crack or break, posing a fall hazard.

Product Numbers Recalled: 
About 105
If You Own This Product: 

Consumers 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.

Consumer Contact: 

For 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


The firm received one report of a handlebar stem breaking resulting in minor injuries.

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