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eljeffo64 said:I was led to believe that no ABS means an "even" brake balance - i.e. to much rear bias - hence the twitchy feel at the rear with non abs cars (e.g. 172 cup). While this is no way dangerous (like other non abs cars - learn to brake properly!) it can be a pita on the track and very difficult to change the set up (save for putting WD 40 on the rear discs before a session - joking!!)
The 172 cups have a 95/5 split if i remember correctly and the actuating arm on the load sensing valve is disconnected on the rear axle. It's very common for 172 Cup's to fail the MOT on rear braking force, such an issue in fact VOSA have a note about this on their systems.