It’s in the name! X-treme power, materials of x-tremely high quality and x-tremely precise manufacturing.


NOSRAM proudly presents the new benchmark nitro competition engine for 1/8th buggies and truggies.


You’ll feel its enormous power in every race situation. The output reserves of the new top notch engine will give you the decisive advantage on the track. But power is nothing without effi ciency. You’ll be amazed by the low fuel consumption of the rr.21 x-treme. In addition, you can take profi t from a running smoothness never seen before. All materials for the new NOSRAM engine have been exclusively selected and are of highest quality. A highly precise manufacturing process leads to a really outstanding construction accuracy.


One of the top features of the rr.21 x-treme is the diamond-like carbon coated crankshaft for minimum wear and lowest resistance.

 

Furthermore, the crankshaft features a silicone insert and a precision-balance due to a pressed-in tungsten insert.

 



 

.21cc = 3.49ccm
2.92hp*
max. 40.000rpm*
NOSRAM factory
team specifi cation
NOSRAM factory tuned
ceramic ball bearing
DLC coated, precision-balanced
crankshaft with silicone insert
low-CG engine head
thermal protected carburetor
aluminum carburetor inserts
3+1 ports
worldwide race legal
wt3 platinum/iridium high-performance
glow plug included