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Spitfire Formula Four Lock-Ins Skateboard Wheels

$42.95
21 Reviews
(21)
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natural (101d)
Select Style: natural (101d)
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Overview

Surface
  • Smooth
Quantity
  • Set of 4 Wheels
Wheel Profile
  • Medium
Key Features
  • Formula Four Urethane
Wheel Shape
  • Lock Ins Cut

Features

Surface

Smooth - Smooth wheels come with a shiny coating on the riding surface that feels grippy at first, but wears away quickly.

Wheel Profile

Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.

Key Features

Formula Four Urethane - Unmatched abrasion resistance for fewer flat spots. More controllable grip. Lasting speed no matter the terrain. Smooth anti-slick slide and a longer lasting size and shape.

Wheel Shape

Lock Ins Cut - Asymmetrically cut, you can get the benefits of conical outer walls while the inside wall is cut straight, giving you a flat surface to lock in your grinds.

Specs

Durometer
natural (101d)101a
natural (99d)99a
Size52mm53mm
Diameter (mm):52.0 53.0
Width (mm):33.3 33.9
Riding Surface (mm):20.0 21.6
Suggested Riser Size (in):N/A N/A

Reviews

4.9
Overall Rating
Reviewed by 21 customers
Lock ins 57mm(99d)
by Billy Perkins in Sapulpa, OK (Verified Buyer)
Posted on 9/12/2023
Spitfire Formula Four Lock-Ins Skateboard Wheels - natural (99d)
I feel like these are helping me lock in on grinds much better so there not just a gimmick so i would recommend if you like to get better or learn new truck grinds they help out a lot!
0 person has found this review helpful
Good Stuff, Very Spicy!
by Glance Dodger in Berkeley, CA (Verified Buyer)
Posted on 5/26/2020
Spitfire Formula Four Lock-Ins Skateboard Wheels - natural (101d)
Lock-in is no lie. These puppies work. Click, bam, boom... locked. Super smooth. I recommend getting 1 mm size larger than you would normally ride, let the edges round out a little.
2 people have found this review helpful
controlled slides, fast and smooth
by Chad Chaves in south el monte, CA (Verified Buyer)
Posted on 5/22/2020
Spitfire Formula Four Lock-Ins Skateboard Wheels - natural (99d)
Nice shape, looks cool with graphic out,im stoked on the way the ride. Get some!!!
0 person has found this review helpful
Lock-ins
by Nicholas Buono in Castleton On Hudson, NY (Verified Buyer)
Posted on 4/20/2020
Spitfire Formula Four Lock-Ins Skateboard Wheels - natural (101d)
Best
0 person has found this review helpful
Love these wheels
by m00se_bumps
Posted on 3/24/2020
Spitfire Formula Four Lock-Ins Skateboard Wheels
Great wheels, I picked up the 55mm 99A and have been really happy. Bigger size, wider contact patch, and slightly softer formula are great for less than perfect sidewalk and streets. would 100% recommend picking these up to anyone.
4 people have found this review helpful
Keeping the underground lit
by Andrew K in Marlton, NJ (Verified Buyer)
Posted on 8/11/2019
Spitfire Formula Four Lock-Ins Skateboard Wheels - natural (101d)
Went from bones SPF to these, I’m learning and landing tricks
2 people have found this review helpful