303AO

Duralumin plate / Duralumin saddle

303BO

Duralumin plate / Brass saddle

303SJ

Duralumin plate / Steel saddle

SGS510

Gear ratio : 1:15 Weight : 32.1g/pcs

SGS510Z

Gear ratio : 1:18 Weight : 32.4g/pcs

SGL510Z

Gear ratio : 1:21 Weight : 36.8g/pcs

SGL510

Gear ratio : 1:18 Weight : 36.5g/pcs

SGV510

Gear ratio : 1:18 Weight : 36.2g/pcs

SGV510Z

Gear ratio : 1:21 Weight : 36.4g/pcs

SE510

Gear ratio : 1:15 Weight : 27.3g/pcs

SE510M

Gear ratio : 1:15 Weight : 27.2g/pcs

SE510W

Gear ratio : 1:15 Weight : 27.2g/pcs