Reply To: jerky drive

Chris,

The Bibax is a shock-absorbing section of the driveshaft.  It has a female splined core which accepts the gearbox output shaft.  The core is bonded, via a polymer, to the outer shell.  That then bolts to the outer (wheel) end of the driveshaft.  It is perhaps best likened to an in-line silentbloc.

The “friction disc” is the clutch plate.  Early versions were solid with the splined centre riveted directly to the steel disc carrying g the friction rings.  Modern plates incorporate springs between the centre and the disc to absorb any sharp impact should the clutch be engaged too fiercely.  The Bibax is therefore less critical if the disc is sprung.

B…….