@jourdan975: normaly i´m riding the 6 Piston calliper.....which is working very good!
but cos of the fact that i´m racing with guys who are minimum 15kg lighter than me I just need to brake later and harder if i don´t wanna lose to much meters on one lap!
2 weeks ago I although had just the standard cabelbrake on the rear.....but the tiny 4 Piston Calliper is half as big & brakes with the same power.