Dbr Derbi Superfast High Titanium 70 85ccThe expansion DBR Derbi Superfast High Titanium 70 85cc is designed to deliver maximum performance on Derbi engines in configurations from 70cc up to the most tuned 85cc. Made entirely from Japanese Titanium, this exhaust guarantees extreme lightness and optimized gas resonance for racing use. Superfast High (high mount) is engineered to improve top end power and response at high revs, while the titanium ensures superior heat dissipation compared to