About 24,000 Sram 10-Speed bicycle chains with PowerLock connector
links are being recalled by Sram, a Chicago bicycle parts maker,
because the connectors are brittle and can crack, allowing the chain to
separate from the bicycle and causing the rider to fall.

Four incidents have been reported, including one in the United States,
the Consumer Product Safety Commission said. No injuries have been
reported, the agency said.

The recall involves Sram PowerLock connector links, which are sold
individually, on 10-speed bicycle chains and as original equipment on
some bicycles. The recalled PowerLock connector links are identified by
a date code of M or N located on the side of the PowerLock connector
link. Ten-speed SRAM chains that were equipped with recalled PowerLock
connector links include the following chain model numbers: PC-1030,
PC-1050, PC-1070, PC-1090 and PC-1090R.

The recalled chains also were installed on some Guru, Surly, Salsa,
BMC, Serotta, Seven and Ridley brand bicycles. The individual PowerLock
connectors and bike chains with these connectors were sold from January
through August 2009. Bicycles with affected chains were sold from April
2009 through August 2009.

The items were manufactured in Portugal and sold at specialty bicycle
stores nationwide. PowerLock connector links were sold separately for
about $5 or as part of 10-speed chains for between $35 and $85.

The commission said consumers should immediately stop using the
recalled PowerLock connectors, chains and bicycles with these
connectors and contact their Sram retailer for replacement.