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Spitfire F4 Lock-Ins 53mm 101a Skateboard Wheels

Spitfire F4 Lock-Ins 53mm 101a Skateboard Wheels
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Type Street/Park/Vert
Diameter (mm) 53
Duro (a) 99
Contact Patch (mm) 20
Lip Profile Round
Surface Smooth
Bearing Core Sideset
Colour White

Spitfire F4 Lock Ins 53mm 101a Skateboard Wheels has an asymmetrical shape to offer you a different control while locking in those grinds. A conical cut on one side with a straight edge cut on the opposite built for precise lock in. You'll leave the park Lit after a hard session on these bad boys!

Wheel Size -  The 53mm size offers fast acceleration and a lower ride for quicker pops and maintaining good momentum on small transition and ramps. The smaller size is great for techy street shredders and smaller sized humans. 

Wheel Shape / Profile: Lock Ins - Looking for the best of both worlds, then the newer shaped Lock Ins are for you. It’s an asymmetrical shape, meaning it has a different shape on each side. A flatter side for locking into edges and a chamfered side that won’t catch when sliding so you can lock in your 5-0 grind around the whole bowl!. For more info read Spitfire Wheel Shapes Explained

Urethane - Formula Four 101a: Spitfire released their new Formula Four wheels a few years ago now. The latest formula was designed for higher abrasion resistance. This means it is a little harder to flat spot. Usually adorned with a red coloured graphic, the Formula Four 101A wheels are the hardest Spitfire Wheels available. They are super fast on smooth surfaces and the easiest to slide. Being super hard, if you find they let go on smooth surfaces or feel unpleasant on rougher terrain, switch back to the 99A models. There are no hard and fast rules, best to try out different wheels and select what works best for you. For more info read Spitfire Wheel Formulas Explained

Bearing core -  Center-Set so you can reverse the wheel to save the graphic and help get longer life out of your wheels as you can rotated them so they burn down evenly.