Mountain Bicycle Handlebar Stem
Check against the official notice below — it lists the full affected range.
Shimano is recalling PRO Atherton direct mount mountain bike handlebar stems (model number PRSS0049) supplied from October 2009 to November 2010. The stems have four bolts holding the front plate to the stem body, and some units were manufactured with 18mm bolts instead of the correct 21mm bolts. When 18mm bolts are used, they can be pulled out of the threads while riding, causing the rider to lose control and fall. The stem is black with red markings, has "PRO" printed four times on the sides and "Atherton" printed on the body, and a black and silver front plate with the PRO logo. Affected stems have identification codes HH, HJ, HK, HL, IA, IC, ID, IE, or IF located on the stem body where the handlebars are seated.
Consumers should immediately stop using bicycles with PRO Atherton handlebar stems and take them to an authorized retailer to determine whether their stem is subject to recall. Authorized retailers will replace the 18mm bolts with 21mm bolts at no charge.
Written by software from the official notice below. Not reviewed by a lawyer.
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.
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.
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.
Official record: U.S. Consumer Product Safety Commission ↗
Republished from the official source above; details can change — the source record controls.