Kryptonite Evolution Series U-Lock - Keyed | 4' cable | 3.25 x 7" Wire Bead If you are building a

If you are building a waxed drivetrain around SILCA Secret Chain Blend hot melt wax or SILCA Super Secret Chain Lube drip wax

and low-impact recovery sessions

and a lock without overloading the rear of the bike

gray is the default starting point that most riders never need to move away from

9mm version

Kryptonite Evolution Series U-Lock - Keyed | 4' cable | 3.25 x 7" Wire Bead If you are building aWhat Makes the Kryptonite Evolution U Lock Worth It? The Kryptonite Evolution Series U Lock delivers high security protection built around a 13mm MAX Performance hardened steel shackle that resists bolt cutters and leverage attacks. A secure disc style cylinder resists picking and drilling, while the short crossbar and compact shackle design minimize the exposed metal a thief can work with. This lock ships with a 4 foot braided steel cable, so you can