RC30 pro-squat brake torque linkage

[fastdruid]

Also if you look on modern bikes nearly all don't have one. You would have expected for example Moto-GP to have them if it made a difference and they don't.

I would take slight issue with Dave - having ridden RCs & NCs with & without I think the linkage gives somewhat better feel and rear wheel grip under braking on bumpy roads.

Of course any bike on which the rear brake torque arm is articulated and attached to the main frame rather than the swingarm achieves the same isolation of braking forces from suspension action as that RC30 arrangement and by varying the relative positions of the swingarm pivot and the front anchor point can be made either pro- or anti-squat.

Quite, the RC30 version of course is just rather complicated because of the single sided swingarm. :-)

However, a quick online rummage for photos would seem to suggest that most (all?) MotoGP bikes have their rear brake calipers anchored direct to the swingarm and a walk round our showroom has failed to turn up a single new or recent used bike with any other arrangement...

Maybe that should be "You would have expected for example Moto-GP to have them if it made a significant difference and they obviously don't consider the benefits outweigh the costs". :-)

Druid

[RickOliver]

Yes, perfectly put...

I think that from a purely objective engineering point of view you`d have to say that articulated linkages are better (and I love the slightly `trick` look of the RC one anyway) but they are certainly out of fashion at present.

Rick