Mason 140
$70.00
World's Lightest Sold Secure Diamond U-Lock!
Unique triangular 17 mm crossbar for best strength/weight ratio. Double deadbolt locking mechanism for protection against twist attacks. *Mounting Bracket sold separately.
Hear what our customer has to say about his Mason 140
Mason 180
$75.00
World's Lightest Sold Secure Diamond U-Lock!
Unique triangular 17 mm crossbar for best strength/weight ratio. Double deadbolt locking mechanism for protection against twist attacks. *Mounting Bracket sold separately
Hear what our customer has to say about his Mason Lock
Mason 220
Coming Soon
The Widest of its kind! PATENTED pentagonal crossbars, 15.3 mm hardened steel. Stronger than any rounded crossbars, Double deadbolt locking mechanism for protection against twist attacks. *Mounting Bracket sold separately
Mason 300
Coming Soon
The Widest of its kind! PATENTED pentagonal crossbars, 15.3 mm hardened steel. Stronger than any rounded crossbars, Double deadbolt locking mechanism for protection against twist attacks. *Mounting Bracket sold separately
U-Lock Mounting Bracket
$15.00
A Mounting Bracket for attaching the lock to your bike's frame
Fits any of our U-Locks
Fits a wide spectrum of frame widths
Enables endless mounting positions
