Bicycle Stems Recalled by Ridley Bikes Due to Fall Hazard
Home product recall 12-183. Announced by CPSC on May 22, 2012.
- CPSC: stop using it
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own notice is on cpsc.gov.
The short answer
Announced by CPSC on May 22, 2012. Copied from CPSC on Oct 19, 2026.
- Stop using it what CPSC tells owners to do now (needs attention)
- Replace what’s offered
- About 105 units, as CPSC gives them
- Reported injuries, in the notice (needs attention)
Every line below is in CPSC’s own words, with its source beside it.
What’s wrong with it?
The bicycle handlebar stems can crack or break, posing a fall hazard.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What should you do?
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.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
- What the company offers to fix a recalled product or vehicle: a repair, a replacement or a refund, as the recall notice says. For a vehicle, dealers make the safety repair free. Follow the notice’s own steps, or contact the company it names. Source: CPSC; NHTSA (49 U.S.C. 30120).: replace.
- How to reach the firm: 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 www.ridley-bikes.com
Which ones are recalled?
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.
About 105 units, as CPSC gives them.
4ZA Threadless Carbon Bicycle Handlebar Stems.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
CPSC’s photos
CPSC shows 1 photo on its notice. Hearth Record doesn’t copy them; each opens on cpsc.gov.
Who made and sold it?
- Made by Race Productions NV, Belgium.
- Distributed by Sinclair Imports, Reno, Nev.
- Distributed by Quality Bicycle Products, Bloomington, Minn.
- The stems were sold at specialty bicycle retailers and via websites from January 2005 through April 2010 for about $59.
- Made in Taiwan, as the notice gives it.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
Was anyone hurt?
The firm received one report of a handlebar stem breaking resulting in minor injuries.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What the record doesn’t say
- The notice lists no UPCs, so check the model, the description and the photos.
- The notice lists no model numbers in a field of their own; its description may give them.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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U.S. Consumer Product Safety Commission, Recalls API.
Checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Recalls of kids’ and home products are from the U.S. Consumer Product Safety Commission (CPSC). CPSC does not endorse Hearth Record. Copied on Oct 19, 2026.