Description

De-throttling kit for D50B0 Euro4 engines

De-restriction kit for Aprilia SX/RX and Derbi Senda Euro4 models from 2018 onwards. The kit consists of unrestricted front pipe, gasket, #90 main nozzle and 13T front sprocket.

This allows the engine to work more freely, but retains the original CDI/ECU’s restriction at 8,000 rpm.NOTE: This kit does not remove all restrictions. If you want a full throttle removal kit, look under related items below.