Scooter forks are compatible with bars, compression, and clamps. Compression will drive which of those 4 types of parts are compatible with each other. When purchasing forks, ensure that the compression type of the fork is compatible with your bars, compression system, and clamp (not required for SCS).
SCS Compression compatibility
COMPATIBLE PARTS: SCS forks, SCS compression system, bars without a slit.
SCS compression utilizes an SCS compression system in place of a clamp. Ensure that your bar diameter (standard or oversized) is compatible with the diameter of your SCS compression system and that your bars DO NOT HAVE A SLIT. Most SCS compression systems come with a shim, which will be compatible with either bar size. When you remove the shim, the SCS is compatible with oversized bars; when you leave the shim in, it is compatible with standard bars. SCS compression is the most effective type of compression, as it compresses the bars and forks independently.
HIC Compression compatibility
COMPATIBLE PARTS: HIC forks, double clamp, bars with an oversized inner diameter and a slit.
HIC compression utilizes an HIC compression system that screws into the top of your forks. With the HIC compression system installed on the forks, you will need bars with a slit and an oversized inner diameter. HIC bars require steel or titanium bars with an oversized inner diameter. Steel bars with a standard inner diameter and aluminum bars, which have an oversized outer diameter but standard inner diameter, will NOT work with HIC compression. HIC compression will also require the use of an oversized clamp, which compresses the bars around the HIC compression system and fork.
IHC Compression compatibility
COMPATIBLE PARTS: IHC forks, double clamp, bars with a standard inner diameter and a slit.
IHC compression is similar to HIC compression but doesn’t require the purchase of an HIC shim, as the integrated headset compression (IHC) is built directly into the forks. IHC forks are going to work with standard steel or aluminum bars with a slit. Depending on whether you get steel (standard outer diameter) or aluminum (oversized outer diameter) bars will determine whether you need a standard or oversized double clamp. Most clamps come with a shim. Remove the shim for use with oversized bars; keep it in for use with standard bars.
