This succeeds to the technology of RSx. This is the mini-size servo which fits 1/12 category most.
It uses a high-power core-less motor in luxury and secures high retentively and reliability.

The servo adopts the aluminum gear to which hardening Alumite treatment is applied.
The gear is strong in a shock and moreover shows an effect in the reproducibility of the driving.
The black wire servo leads, attractive in a chassis layout, are used.

The characteristic of World Spec version
World spec version setting has been preinstalled in factory setting.
Mr.Ishioka(Japan national champion) used setting in the world championship.

HCS Compatible.

HCS (High speed Communcation System) is the new high speed communication system between the receiver to the servo. The HCS mode shortens communication time of the signal which is compressed. HCS compatible servos is changing mode automatically by signal from receiver. So HCS compatible servos can use with all receivers. 
If you want to use servos by HCS, please use with HCS compatible receivers.

Installed preset settings

The following factory MODEL settings are pre-installed. 
You can chenge setting by Servo Model Selector.

Model1: Default setting(1/12 Stock class recommend)
Model2: 2014 IFMAR setting (1/12 Modi?ed class recommend,mild)
Model3: 2015JMRCA Champion(1/12 Modi?ed class recommend, Quick)
Model4: GT500, World GT, F-1 Rubber tyre class recommend
Model5: F1 form tyre, Asphalt road surface recommend

*Model2 has been selected in factory setting.