On Guard also does a midi size version of the pitbull. Same width as the bulldog mini but about a 1.5" longer shackle. 3.55 x 6.9". It gives additional locking options. Search for "On Guard Pitbull Medium".
__________________
Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro
Visit and join the Yahoo Geared Hub Bikes group for support and links.
http://groups.yahoo.com/group/Geared_hub_bikes/