Kryptonite Evolution Series 4 Disc U-Lock Key 46x53mm 1.8'' x 2.1'' Thickness in mm: 14mm Black MFPN=BAI0145 10mm or 20mm increments Head MFPN=100867-9900-05 B-HL2422 One kit rebuilds 2 Color:Dark Sapphire Melange

Kryptonite Evolution Series 4 Disc U Lock Key 46x53mm 1.8'' x 2.1'' Thickness in mm: 14mm Black MFPN=BAI0145 10mm or 20mm increments Head MFPN=100867 9900 05 B HL2422 One kit rebuilds 2 Color:Dark Sapphire Melange 10mm or 20mm increments Head Design lowers stack height by 10mm and improves bolt access for ease of adjustment Very durable cartridge with very low failure rate Actuator design increases seat tube clearances and insertion depth 26mm Stanchion for stiffness and reduced bushing overlap PTFE + copper Keyway keeps tolerances tight and strength high No Proprietary Tools simple service procedure Tested to 20°C Hip belt pocket