Our spacers have a maximum 38mm bolt centre distance. If your base bar has bolt centres larger than this then you MUST use your original spacers. If your bolt centres are 38mm or smaller, you can use FastTT spacers. If you fit FastTT spacers or adjustable angled risers directly to the base bar mounting pedestals you will require our optional interface shims. If you fit your original spacers directly to the base bar you DO NOT require our interface shims.

Spacer Interface Shim Kit
FastTT spacer interface shims are REQUIRED when bolting FastTT spacers or adjustable angled risers directly to base bar mounting pedestals or to ‘other brand’ spacers.
NOT REQUIRED when bolting FastTT spacers or adjustable angled risers to any FastTT adapter plates.
CNC machined in high-grade anodised aluminium.
Each kit includes 2x oval and 2x aero profile shims to suit all fitments.
- IMPORTANT MOUNTING INFORMATION
FastTT spacer interface shims are REQUIRED when bolting FastTT spacers or adjustable angled risers directly to base bar mounting pedestals or to ‘other brand’ spacers.
NOT REQUIRED when bolting FastTT spacers or adjustable angled risers to any FastTT adapter plates.
CNC machined in high-grade anodised aluminium.
Each kit includes 2x oval and 2x aero profile shims to suit all fitments.
- IMPORTANT MOUNTING INFORMATION
Our spacers have a maximum 38mm bolt centre distance. If your base bar has bolt centres larger than this then you MUST use your original spacers. If your bolt centres are 38mm or smaller, you can use FastTT spacers. If you fit FastTT spacers or adjustable angled risers directly to the base bar mounting pedestals you will require our optional interface shims. If you fit your original spacers directly to the base bar you DO NOT require our interface shims.
Description
FastTT spacer interface shims are REQUIRED when bolting FastTT spacers or adjustable angled risers directly to base bar mounting pedestals or to ‘other brand’ spacers.
NOT REQUIRED when bolting FastTT spacers or adjustable angled risers to any FastTT adapter plates.
CNC machined in high-grade anodised aluminium.
Each kit includes 2x oval and 2x aero profile shims to suit all fitments.
- IMPORTANT MOUNTING INFORMATION
Our spacers have a maximum 38mm bolt centre distance. If your base bar has bolt centres larger than this then you MUST use your original spacers. If your bolt centres are 38mm or smaller, you can use FastTT spacers. If you fit FastTT spacers or adjustable angled risers directly to the base bar mounting pedestals you will require our optional interface shims. If you fit your original spacers directly to the base bar you DO NOT require our interface shims.





















