Extensively track-tested by Reedy factory drivers such as Ryan Maifield, Craig Drescher, Neil Cragg, and Richard Saxton, the VR-ST incorporates state-of-the-art features in a proven package.

The current 121VR engine has proven to be an economically priced, powerful race engine. The 121VR-ST (Special Tuned) takes performance to an entirely new level with the addition of a balanced ADLC-coated crankshaft, ceramic rear bearing, lightweight piston, and ADLC coated wrist pin. An ultra-lightweight heatsink head with "diamond cut" fins improves cooling while lowering the center of gravity.

The 121VR-ST is a race-proven engine that is capable of producing world-class power and fuel economy with a driver-friendly linear power band.

Displacement:	3.46cc
Maximum RPM:	40,000
Cylinder Construction:	ABC
Number of Ports:	3 + 1
Bore:	16mm
Stroke:	16.0mm
Crankshaft Dia.:	14.0mm
Weight:	346g

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