derestriction kit Eco for Derbi Senda, Aprilia RX 50, SX 50, Gilera RCR, SMT Euro4 2018-

Derestrictor kit for partial derestriction suitable for D50B0 EURO4 vehicles. Cheaper compared to the Premium derestriction kit (38420), since this kit shown here is delivered with a black steel manifold and without ECU. With this kit, performance limitations are partially lifted...

rev speed lock at 8000rpm remains unchanged

w/o ignition timing correction

partial reduction of exhaust gas temperature

Suitable for Derbi Senda, Aprilia RX 50, SX 50, Gilera RCR, SMT EURO4 built from 2018 and up.

The kit comes with:

• derestricted steel manifold, black (w/ gasket)
• Dellorto main jet (90, M6)
• 13 tooth gear