From REDS Racing:
REDS Racing have released a set of new venturis for the 3.5cc On Road M series engine.
The new venturis are available in 8.0 , 8.5 and 9.0 mm and they feature a higher torque maintaining mid and top range power fuel consumption unchanged.
High torque venturis are suitable for all M On Road models. The product has been developed in cooperation with REDS Factory Team drivers such as John Ermen and used with great success at the recent 1/8 European Championship in Ettlingen.