Mason U-Lock 140

World's Lightest Sold Secure Diamond U-Lock!

Unique triangular crossbar profile for best strength/weight ratio. Double deadbolt locking mechanism for protection against twist attacks. *Mounting Bracket sold separately.

Best Bike Lock - "The Mason 140 is a great little lock and a worthy addition to the rapidly expanding Seatylock range. It’s extremely secure, with a bolt cutter thwarting 17 mm shackle and internal dimensions that are sure to deter leverage attacks."