Spitfire Formula Four 93A Ishod Lock-In Classic Wheels 55mm Natural are Formula Four 93A wheels in the Lock-In Classic shape, built for locking in with classic versatility. Formula Four 93A Soft Sliders give a controllable, consistent slide anywhere. The softer duro and high-rebound compound absorb more impact and vibration, so they're easier on your body for longer sessions.

At 55mm x 34mm, with a 19.9mm riding surface, this size adds a little speed and roll for park and transition. It's Ishod's pro model. Sold as a set of 4.

Who These Wheels Are For

• Skaters who want locking in with classic versatility
• Park and transition skaters
• Skaters on rough ground who still want to slide
• Ishod fans

Features

• Formula Four 93A urethane
• Formula Four urethane: unmatched flatspot resistance and smooth anti-stick slide, per Spitfire
• Lock-In Classic shape
• 55mm diameter, 34mm wide, 19.9mm riding surface
• Set of 4

Benefits

• Absorbs impact and vibration
• Locking in with classic versatility
• This size adds a little speed and roll for park and transition

Specs

Compare Formula Four 93A Lock-In Classic Sizes

Every size in this line uses the same formula and shape.

Lock-In Classic in Other Durometers

The same Lock-In Classic shape in a different formula or durometer, in this size or the closest one available.

Complete Your Setup

New wheels deserve fresh bearings. Spitfire makes three tiers:

• Spitfire Cheapshots Bearings (Good): Spitfire's base-level bearing, tested by the pro team, with removable black shields to keep the crud out.
• Spitfire Classics Bearings (Better): Superfast and durable, with heat-resistant chromium steel rings, removable nylon cages, and blue removable shields.
• Spitfire Burners Bearings (Best): Spitfire's high-performance pick, with polished honed races and high carbon chromium steel, packed in a reusable tin.

FAQ

Is 93A hard or soft?

Softer than a standard street wheel. 93A gives a controllable slide while absorbing more impact and vibration.

What is the Lock-In Classic shape good for?

Locking in with classic versatility. Spitfire describes it as Ishod's custom shape: medium width and asymmetrical, with a straight-edge lock-in cut inside for control and a classic round outer sidewall for versatility on any terrain.

What size wheels should I get?

Smaller wheels (50 to 52mm) are light and technical, 53 to 54mm is the street and park go-to, and 55mm and up adds speed for transition and rough ground. See our skateboard wheels guide for more.