This is the crown of the brand DOPPLER for your SENDA 00> / MRT / XP6 / RS3. 
The crown DOPPLER is one of the only aluminium machined in an aviation-type alloy. This gives it resistance and reliability. In addition, with its innovative design, it will provide your vehicle with a racing look.
It has 53 teeth, it is made for a chain in 420 links, with a Ø62 fixing diameter in 5 fixings. 
Available in several colours: 
- red
- black 
- gold
- blue 
- purple 
- neochrome
Think about selecting the desired color before ordering! 
Gets on: 
APRILIA RX (50 cc)
APRILIA SX (50 cc)
DERBI SENDA SM X-TREME (50 cc) from 2002 to 2012
GILERA RCR (50 cc)
GILERA SMT (50 cc)
PEUGEOT XP6 SM (50 cc) 1997-2003
PEUGEOT XP6 SM (50 cc) from 2008 to 2013
PEUGEOT XP7 (50 cc)
RIEJU MRT (50 cc) from 2009
RIEJU MRT PRO (50 cc) from 2018