In 1991 Corally introduced the SP12G. The G stands for Graphite, because the famous coral chassis is now replaced by a carbon chassis plate. The only coral left in this model is the red motor pod and the new red front wheel suspension. The suspension points of the T-bar and the front wheel suspension are replaced by aluminum ball bearings with plastic bowls. These parts are joined together by the well known O-rings. The batteries are fixed with strips. The use of C-clips instead of O-rings to secure the wheels is also new.