PlainRecalls
CPSC Moderate Active

Shimano Recalls PRO Atherton Mountain Bike Handlebar Stems Due to Fall Hazard

Reported: February 21, 2012 Initiated: February 21, 2012 #12113

Product Description

This recall involves PRO Atherton direct mount bicycle handlebar stems with the model number PRSS0049 and supplied from October 2009 to November 2010. The stem consists of a metal alloy body and front plate and four alloy bolts. The stem body is black with red markings. It has the word "PRO" in four places on the sides and the word "Atherton." The front plate is black and silver with the PRO logo in the center. The model number is located on the barcode sticker on the backside bottom of the packaging material. Stems with the following identification codes are being recalled: HH, HJ, HK, HL, IA, IC, ID, IE and IF. Some of these stems were outfitted with 18mm bolts instead of 21mm bolts. The identification code is located on the stem body where the handlebars are seated.

Reason for Recall

The bolts holding the front plate of the stem to the stem body can be pulled out of the threads while the bike is being ridden, causing the rider to lose control of the bike and fall.

Remedy

Consumers should immediately stop using bicycles with PRO Atherton handlebar stems and take them to an authorized retailer to determine if the stem on their bike is subject to the recall. Authorized retailers will replace 18mm bolts with 21mm bolts free of charge.

Details

Units Affected
213 in the United States; 83 in Canada
Official Source
https://www.cpsc.gov/Recalls/2012/Shimano-Recalls-PRO-Atherton-Mountain-Bike-Handlebar-Stems-Due-to-Fall-Hazard

Frequently Asked Questions

What product was recalled? ▼
This recall involves PRO Atherton direct mount bicycle handlebar stems with the model number PRSS0049 and supplied from October 2009 to November 2010. The stem consists of a metal alloy body and front plate and four alloy bolts. The stem body is black with red markings. It has the word "PRO" in four places on the sides and the word "Atherton." The front plate is black and silver with the PRO logo in the center. The model number is located on the barcode sticker on the backside bottom of the packaging material. Stems with the following identification codes are being recalled: HH, HJ, HK, HL, IA, IC, ID, IE and IF. Some of these stems were outfitted with 18mm bolts instead of 21mm bolts. The identification code is located on the stem body where the handlebars are seated.. Recalled by Post Moderne Corporation, Taiwan. Units affected: 213 in the United States; 83 in Canada.
Why was this product recalled? ▼
The bolts holding the front plate of the stem to the stem body can be pulled out of the threads while the bike is being ridden, causing the rider to lose control of the bike and fall.
What should consumers do? ▼
Consumers should immediately stop using bicycles with PRO Atherton handlebar stems and take them to an authorized retailer to determine if the stem on their bike is subject to the recall. Authorized retailers will replace 18mm bolts with 21mm bolts free of charge.
Which agency issued this recall? ▼
This recall was issued by the CPSC on February 21, 2012. Severity: Moderate. Recall number: 12113.

Related Recalls

CPSC Moderate

Rear Bolts on Trek and Electra Electric Bicycles Recalled Due to Fall Hazard; Manufactured by Hyena

Hyena, Inc., of Taiwan · 2026-01-29
CPSC Moderate

R.X.Y Bicycle Helmets Recalled Due to Risk of Serious Injury or Death from Head Injury; Violates Mandatory Standard for…

Tanghexianjinyuanliyueshangmao Co., Ltd. (Tanghe County Jinyuan Liyue Commerce and Trade Co., Ltd.) dba R.X.Y, of China · 2026-01-15
CPSC Moderate

PNW Components Recalls Aluminum Alloy Bicycle Pedals Due to Crash Hazard

· 2026-01-08
CPSC Moderate

TopHomer Pool Drain Covers Recalled Due to Risk of Serious Injury or Death from Entrapment and Drowning Hazards; Violat…

Guangzhoushuoshenghaoyikejiyouxiangongsi, dba TopHomerUS, of China · 2025-12-18
CPSC Moderate

TREK Recalls Electric Bicycles Due to Fall or Crash Hazard

· 2025-12-11

Explore Related Data

Vehicle Safety → Drug Information →