O.S. Speed 12 TZ Spec II Precision 1/10 Racing Engine  [OS-11387]

O.S. Speed 12 TZ Spec II - Precision for 1/10 Scale Racers

The O.S. Speed 12 TZ Spec II brings precision engineering to the 1/10 scale racing scene. Constructed to IFMAR guidelines, it aims to provide steady, high-RPM performance for drivers who need predictable behaviour across qualifying and finals.

High-RPM Design and Durability

The Speed 12 TZ Spec II uses a pilot crankshaft to enhance rotational accuracy and to support elevated engine speeds. Components are manufactured to tight tolerances to ensure durability under racing loads while keeping performance sharp.

Targeted for Serious Track Use

O.S. Engines developed the 12 TZ Spec II with competitive drivers in mind. Its layout emphasises speed and responsiveness on the circuit, and it is supplied without a warranty to reflect its specialised racing intent.

Consistent Performance When It Matters

Drivers who value consistent lap times will find the Speed 12 TZ Spec II responsive and resilient during longer runs. The engine resists performance drop-off and supports reliable throttle control in race conditions.

The O.S. Speed 12 TZ Spec II is suited to experienced hobbyists focused on lap consistency and race-ready power in 1/10 scale classes.