F4 LOCK INS 57MM 99D

The Spitfire Formula Four Lock-Ins feature an asymmetrical shape and design featuring a conical cut profile opposite a straight edge side. The idea behind this is to give you extra scope to lock your wheels and trucks into grinds better! 

LOCK YOURSELF IN WITH MORE CONTROL SO YOU CAN BURN FOREVER!!

• Comes in a set of 4 wheels
• Material: Formula Four™ 99D Urethane (99A Durometer)
• Shape: Lock In's
• Diameter: 57 mm
• Width: 34mm
• Riding Surface: 25mm