Kryptonite Evolution Standard U Lock 521 Keep little ones as young

Keep little ones as young as 12 months safe and comfortable with two 5-point safety harnesses and rear brake

Available in 2 sizes: Medium and Large

The differing wheel sizes – a 24” front wheel and 20” back wheel – create a lower center of gravity for increased stability and enhanced efficiency for an altogether smoother ride with cargo in tow

● Large rear air tires and removable front caster wheels - no tools needed

● Steel construction

Kryptonite Evolution Standard U Lock 521 Keep little ones as young14 mm max performance steel shackle New Patent pending hardened double deadbolt design gives additional protection against twist attacks High security disc style cylinder is pick and drill resistant Includes 3 stainless steel keys including new key design and one LED replaceable key fob Includes flexframe u bracket providing convenient multi location u lock transport Protective vinyl coating Eligible for Key Safe Program: Register your key number with