I don't have any reason to think clutchless down shift would hurt anything but the issues I see are two; one is your slowing down anyway and time is really of no consequence so you have nothing to gain but number two is stepping on the shifter, should you miss time something, you now have enough force to bend and or break internal parts. It's pretty much all risk no reward, or the sake of laziness.

 

I agree with Zaqwert, all risk, no reward.

What I was thinking regarding the clutchless shifting idea.

During clutchless upShifting the gear train is under load until that millisecond of throttle closure, during that blip the gear train unloads and moving parts will snick together nicely.

During clutchless downShifting, engine braking is slowing the bike and the gear train is under load, pressure on the shift lever is putting force on the shift mechanism and holding it there until moving things happen to line up, then snick together.

Still all risk, no reward...

Steve

 

Kinda lost on what the op is trying to do because he mentions 2 techniques: rev matching and clutchless downshifting. Clutchless downshifting won't hurt anything... if done right. Done wrong and your bike will let you know you screwed up pretty quickly. So I can't see any practical reason on the street.

 

So I've been fooling around here and there seeing what works what doesn't and what works better.

My down shifting is no longer an issue. As long as I don't hit the shifter until I drop to 4500-4750 rpm. Then she clicks down a gear really really smoothly. And as far as I'm concerned. The smoother the shift the less damage occurring.

Thanks everyone for the tips and advice. Much appreciated.

 

Uhhh, unless you're racing, have a personal mechanic and LOTS of money, there is no need for clutch-less down shifting. Nothing to gain and everything to lose.