Kyosho OT221B OPTIMA Tune-up Gear Set  [KY-OT221B]

Kyosho OT221B gear set - precision fit for OPTIMA cars

If you run a Kyosho OPTIMA, the OT221B gear set is a practical spare to keep your drivetrain behaving predictably. Designed for OPTIMA models, this gear set provides a direct replacement option for worn parts and helps maintain consistent power transfer during regular use.

Fitment and everyday use

The Kyosho OT221B is made to match the OPTIMA series mounting and spacing, giving a snug engagement that reduces play. It is well suited for practice runs and casual track sessions where dependable gearing matters more than performance tuning extremes.

Basic fitting advice

Fitting the OT221B requires common RC maintenance tools and a clean workspace. Inspect surrounding components and remove debris before refitting gears. Routine inspection and light lubrication will extend gear life and preserve smooth operation.