Rear caliper

[OldRider]

These types of motorcycles (1500-1800)are heavy and long wheelbase, the compression effect of rear swingarm, by shaft transmission are diminished
I take this opportunity to correct what has been said above. The FJR does have an arm that holds the caliper, but hidden between the wheel and the swingarm

What part of what post are you correcting?

 

[Jlq1969]

What part of what post are you correcting?

#1....(FJR rear caliper)

 

[OldRider]

One more thing, there are a lot of chain drive sport bikes that use an arm attached to the swingarm too. Then there are the drum brakes bikes that use both ways of holding the brake shoe plate to hold it in place.

 

[Jlq1969]

One more thing, there are a lot of chain drive sport bikes that use an arm attached to the swingarm too. Then there are the drum brakes bikes that use both ways of holding the brake shoe plate to hold it in place.

https://www.cycleworld.com/ducati-motogp-mystery-strut-explained/

 

[Clawdog60]

That's ok, I'm still not understanding why the caliper is different between shaft and chain. It still looks like the axle is going through the caliper assembly. And, I still don't understand why shaft drive bikes can't secure the caliper to the swing arm like chain drive bikes. For the most part, I don't care, 'cuz it works. But, if wasn't for that bar, I could put a bigger (wider) tire on the rear.

They probably could have engineered a slot to slide the caliper on even with shaft but probably not cost effective.

 

[Sierra1]

So, if it IS done (mounting the caliper to the swingarm) on some shaft drives....what is the advantage of doing/not doing it? I never really paid attention to the difference between the FJR and Tenere. I just took them apart, and put them back together. MY guess would be durability?

 

[WJBertrand]

I think attaching the stay arm to the frame vs. the swing arm was more important when we had drum rear brakes operated by a solid rod. Anchoring the drum brake to the swing arm caused the braking pressure to vary with suspension travel because the distance between the brake pedal connection and the brake backing plate would change. If you ever had a bike like this, the rear suspension would chatter terribly on rough terrain when braking. Modern hydraulic brakes have eliminated this effect since suspension travel does not affect braking pressure.