Armstrong S1 Adapter for Evolution Masts
Our Armstrong S1 adapter was reverse engineered from the Armstrong Bottom Bracket, and offers an OEM quality fit to your S1 fuselage. If you already have the Armstrong fuselage or prefer their alternate lengths, this adapter is a cheaper alternative than our direct-connect Armstrong fuselage. It also adds a few centimeters to your mast when compared to the direct-connect fuselage. It is fully compatible with Armstrong-suppled M7 and M8 hardware.
As of October 1, 2025: Adapters do not include mast attachment hardware as the 6/4 Titanium bolts are now included with each Cedrus mast. Additional mast connection hardware can be ordered through this site, or standard M8x40mm Socket Head Cap Screws can be used.
- 3 in stock
- Out of stock; Contact us or preorder
Adapters do not include fuselage attachment hardware. Please ensure adequate thread engagement into the adapter with your fuselage connection screws. If you have any questions or concerns, contact us for support.
