Set of 2 blades DOPPLER ER2 0,35mm fiber for valves DERBI of origin

Ideal to increase its performance on a 50cc motorcycle with a small configuration (pot / carburetor / kit ...). Here is the set of two slats DOPPLER no special fiberglass. It allows to get the right frequency of razor and to release the high speed of your machine while preserving the box with valves of origin which is in addition of very good quality on motorcycles DERBI!

Non contractual photo!

Mounts on all engines DERBI euro 2 and euro 3, example :

APRILIA: RS 50 dal 2006 -> (DERBI D50B) - RS4 50 (DERBI D50B)
BULTACO: ASTRO 50 - LOBITO 50
DERBI: GPR 50 - GPR 50 Nude - GPR 50 RACING - GPR 50 racing dal 2006-> (DERBI D50B) - SENDA 50 DRD dal 2006-> (DERBI D50B) - SENDA 50 DRD R - SENDA 50 DRD SM - SENDA 50 EXTREME - SENDA 50 EXTREME SM - SENDA 50 R
GILERA: GSM 50 - H @ K - ZULU (2001) - RCR 50 - RCR 50 - SMT dal 2006-> (DERBI D50B) - SMT 50
VALENTI RACING: RME-SM (DERBI D50B)