Clutch lever ratio

According to the information from Machine Head in Wakayama City, there exist a longer clutch release lever that reduces tread force on clutch pedal.
Only 10mm extension could reduce the burden on clutch pedal of Skyline Japan 211 model,so I remember. Judging from the photo shown by Machine Head, considerable change of pedal pressure is expected. About 30mm or more extension would mean big change of the rear lever ratio.

Replacing release lever parts is one method, another way is extending the original lever by adding extension parts.
About 15mm extension would be suitable for modifying this portion,so I imagin.
Deeper consideration is required because the change of lever ratio there would affect on driving feel not a little.