Front Brake Lever touching throttle at trackway

[naveed]

I am using my 2017 RC 390 for track. As the track day goes by, my front brake lever becomes spongy and the lever touches the throttle.

I changed brake fluid to Motul 660 this morning in the hope that brake lever feel would get better. The feel is better, but if I put enough pressure I can get the lever touch the throttle. Is this normal with RC 390? Would Brembo RCS 15 master cylinder improve things?

 

[Rexen]

Yes it's normal. Maybe try to go for steel braided brake lines before you buy the RCS 15.

I'll order a RCS 15 myself in the near future because of this issue.

 

[naveed]

I see, thanks! I will probably do brake lines and master cylinder together.

Btw, do you know what's the difference between RCS15 Corsa and RCS 15 Corsa Corta? I was wondering if Corta version would be better for the track.

 

[=maz=]

Just a standard RCS15 will make a world of difference.

I scavenged the braided lines from the ABS unit when I removed it...awesome package when combined with the RCS15 and good pads.