Kryptonite Keeper U-Lock - 4 x 8" Keyed Black Includes bracket MPFN-BBT-100 Vibrocore is a proprietary biodegradable

Vibrocore is a proprietary biodegradable complex foam core of precisely controlled density

The Manufacturer Spec ERD specification listed uses the less common “ERD+” method

Stroke (mm) 60Lockout Switch Shock Mounted SwitchMetric YesEyelet Diameter (mm) 12

Direct Mount Type Direct Mount CINCH Tooth Count 44 Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Defined Color Black Material Aluminum Ring Position/Type Chain Retaining Single Ring Round or Oval Round Chainline/Hub Compatibility 130 Hubs Chainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm Chainstay Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay

3 Crank Arm Material Aluminum Chainring BCD 104 Chainrings Included No Spindle Material Steel Defined Color Black Bore 24

Kryptonite Keeper U-Lock - 4 x 8" Keyed Black Includes bracket MPFN-BBT-100 Vibrocore is a proprietary biodegradableUpdated version 12mm hardened steel shackle and deadbolt with anti rotation design Includes side mount, snap in bracket High security disc style cylinder Includes 2 stainless steel keys Key Safe Program Security rating 5 10 Available Anti Theft Protection $500 TECH SPECS Internal Lock Size Imperial 4x8 Lock Type Key Internal Lock Size Metric 102x203mm Thickness In mm 12mm Bracket Side mount Primary Color Black