According to other threads on this topic, a light flywheel has been referred to as "the poor man's slipper clutch".

Sounds good to me!

Rideon

 

Word on the street is decrease.

 

I had one installed recently, and it decreased wheel-hop on my less than perfect downshifts.

 

Thanks. Maybe I misunderstood previous posts on the subject. Sounds like I'm going to do the mod.

 

Imagine a a flywheel of stock mass being spun at a contant velocity, which means the bike is niether acceleration or decelerating.  At this condition the throttle needs to cracked open a little to maintain speed to over come driveline and aerodynamic drag.  When you accelerate the engine is applying torque in, what I'll call, the positive direction and the interia of the bike and the drivetrain has to respond to this input of power.  Heavier mass in the drivetrain will decrease it's responsiveness, because it takes more energy to get it to change rotating speeds.  Likewise lighter mass will increase the responsiveness of the drivetrain because it takes less energy to change rotating speeds.  So essentially it takes the same braking force from the engine to increase the resulting change in speed, because less rotating mass is applied the same braking force from the engine.

 

It isn't completely clear to me either, PeterS4R, but I like the mod!  I think part of the confusion is the difference between inertia and compression braking.  The flywheel affects one, but not the other.

 

Although your engine will speed up faster and slow down faster with a light flywheel, the tendany for rear wheel lock-up will be reduced.

 

Much controversy here. I'm in the camp of increased engine braking with increased chance of rear wheel lock up. I don't think the flywheel effect overcomes the wheel with the quicker deceleration.

 

This controversy will apparently never be resolved!

It boils down to the difference between compression engine braking and inertial engine braking.
People typically use just the term engine braking and are most often referring to compression braking when they do so. Compression braking will cause rear wheel lockup.

The flywheel affecte inertial braking. Less inertia; less braking.

I'm in Howie's camp on this one. Sorry Norm ;D

 

Well, I wouldn't call Norm wrong either. a sloppy downshift can still lock the wheel. Thw
e effect is just somewhat minimalized.