Buyers Guide For Scooter Forks

Pro Scooter Fork Buying Guide: Compatibility & Compression Explained

The pro scooter fork is one of the most critical components of your setup. It doesn't just hold your front wheel; it determines which compression system and scooter bars you can use. Choosing the right fork is essential for a dialed and safe ride.

1. Understanding Compression Compatibility

Before buying a fork, you must know which compression system you intend to run.

SCS / HIC Forks

These forks typically feature a 1 1/8" (28.6mm) steerer tube, a standard borrowed from the cycling world. This ensures that almost all aftermarket headsets—including top-caps and pinch-rings—will fit perfectly.

  • SCS (Standard Compression System): Use these forks with an SCS clamp.

  • HIC (Hidden Internal Compression): These forks can be used for HIC if you add a compression shim (usually sold separately).

IHC Forks

IHC (Integrated Internal Compression) forks are designed with a slightly thinner steerer tube to save weight.

  • Included Parts: These almost always come with a specific IHC shim and pinch-ring.

  • Bar Compatibility: Once the shim is installed, it reaches the standard 1 1/8" diameter, allowing you to fit Standard Chromoly, Standard Titanium, or Aluminum bars.

  • Conversions: While not natively compatible with SCS, you can use an IHC-to-HIC conversion shim to run oversized bars on these forks.

ICS Forks (Inverted Compression System)

ICS is a specialized, traditional system. The fork features a hole at the top of the steerer tube to accommodate a bolt that threads down from the bars.

  • Compatibility: Generally, ICS forks are not compatible with other systems, though some HIC forks can be modified for ICS use.

2. Wheel Compatibility: Width & Diameter

Not every wheel fits every fork. You must check both the width and the diameter of your wheels before purchasing.

Wheel Width (Core & Urethane)

Width Popularity Compatibility Notes
24mm Standard The industry standard; fits almost every fork on the market.
28mm Rare Often uses a 24mm core with 28mm urethane. Check spacer clearance.
30mm Growing High-performance standard for street riding. Ensure your fork includes 30mm spacers.

Pro Tip: Some forks are "cross-compatible" but require specific spacers to switch between 24mm and 30mm cores. Always verify your spacer kit before installing.

Wheel Diameter

  • 100mm: Found on entry-level or «vintage» scooters.

  • 110mm: The current industry standard. Virtually all aftermarket forks support 110mm.

  • 120mm: Now standard on mid-to-high-end builds. Most modern forks are now "120mm compatible."

3. The 12 Standard (12STD)

The 12 Standard system uses a larger axle (12mm instead of the traditional 8mm) to accommodate 125mm x 30mm wheels.

  • Warning: 12STD forks require 12STD wheels, bearings, and axles. They are not compatible with traditional 8mm hardware without specific conversion spacers.