Kryptonite 002178 New York Fahgettaboudit (Fomerly Known as 997986) Black U-Lock 18mm 3.25" x 6", Extreme bicycle protection! 18mm hardened steel shackle. Hardened Kryptonium steel sleeve on oversized, double-deadbolt crossbar. Three keys (one lighted) are included.

Double security with oversized hardened steel sleeve, double deadbolt and high-security disc-style cylinderSliding dust cover protects and extends the life of the cylinderOversized hardened steel sleeve over the crossbar for enhanced securityFeature a protective vinyl coatingInclude three stainless steel (I) keys, one of which is lighted with a high-intensity bulb and replacement batteryPART #4010-0193 features an 18mm hardened MAX-Performance steel shackle and PART #s 4010-0195 and 4010-0270 feature a 16mm hardened MAX-Performance steel shackle to resist leverage attacks and bolt cutters.