Exhaust Yasuni Cross ML Beta RR-T / Rieju SMX Black

Exhaust Yasuni Cross ML Beta RR

High-mount exhaust Yasuni Cross ML for Beta RR-T (2004 - 2010) and Rieju SMX, sport to mid-race exhaust for 50cc supermotos / motorcycles.

The well-crafted expansion chamber comes with a CNC-machined aluminium silencer. Yasuni’s silencer color range was updated in 2025, so there’s definitely a look to match your bike.

Yasuni Cross ML - Performance

Powerful sound and strong performance, built with the reliability you’d expect from Spanish exhaust experts Yasuni. Designed to perform best in the mid RPM range, this setup is ideal for 50cc to 70cc sport cylinders.

To get the most out of the Cross ML, we recommend the use of a 19mm - 21mm carburetor. We also recommend the use of a reinforced clutch to prevent the clutch from slipping, especially off the line.

Features Yasuni Cross ML High-mount pipe

• High mount exhaust
• Left-hand exit
• Flansch: D. 28 mm
• Fits Beta RR-T, Rieju MRX / SMX
• Silencer: Black
• Incl. mounting material
• With E-Pass / ECE homologation