12-05-2015, 10:26 AM
12-05-2015, 02:27 PM
Don't mean to be negative, but why would you do that?
12-05-2015, 02:36 PM
I clutch the 1-2 and all downshifts; everything else is clutchless. I've done the same on all my bikes and I've never had a problem on any bike I've done this with, including the CB.
As for why, I find it smoother and much faster/lower effort. Some people don't and think it hurts the gearbox, I can respect that too.
** caution, this topic ranks up there with oil threads in terms of debate it inspires.
As for why, I find it smoother and much faster/lower effort. Some people don't and think it hurts the gearbox, I can respect that too.
** caution, this topic ranks up there with oil threads in terms of debate it inspires.
12-05-2015, 02:40 PM
Don't you have to back off the throttle to make the clutchless shift? Just seems to me that in that same amount of time you could pull in and let out the clutch.
Not saying you shouldn't do it on your bike ( although if you ride mine, please don't), just tha I don't see a time savings there.
If you could shift under full power like in a GP seamless gearbox, it would make sense to me
Not saying you shouldn't do it on your bike ( although if you ride mine, please don't), just tha I don't see a time savings there.
If you could shift under full power like in a GP seamless gearbox, it would make sense to me
12-05-2015, 02:43 PM
I've done it. Never on purpose. Seems pretty slick though.
12-05-2015, 02:50 PM
(12-05-2015, 02:40 PM)The ferret_imp Wrote: [ -> ]Don't you have to back off the throttle to make the clutchless shift? Just seems to me that in that same amount of time you could pull in and let out the clutch.
Not saying you shouldn't do it on your bike ( although if you ride mine, please don't), just tha I don't see a time savings there.
If you could shift under full power like in a GP seamless gearbox, it would make sense to me
You're right, you do have to back off, but the internal mass of the engine is so light (compared to a car anyway) and the rpm difference between gears small enough that you basically have to flinch your wrist and probably move the throttle tube a few millimeters.
You aren't trying to cut power completely (like coming right off the gas in manual car), you're just letting the engine rpm come down enough to synchronize the speed of the two shift dogs. Most street bikes that offer clutchless up shifters just kill the ignition for a few hundred milliseconds whenever the shifter is moved up to achieve the same drop in shaft speed.
It takes some getting used to, but eventually you can shift (well, up anyway) almost like an automatic.
12-05-2015, 02:54 PM
I'll be darned
12-05-2015, 03:13 PM
Clutchless upshifts after the 1-2 shift are easy while accelerating. Much tougher to do smoothly at a steady speed, it really helps to be accelerating a least some. Apply a slight pressure up on the gear lever and very quickly and very slightly close and open the throttle. Think of lightly blipping the throttle, but opposite. If your trying to get a noticeable drop in RPM's, you cutting too much throttle, you just want a really light, extremely quick reduction of thrust from the engine.
It's an easy trick, I do it all the time. If your chains getting loose its a little tougher to do smoothly, but done correctly it makes very quick and smooth shifts.
Clutchless downshifts are a little tougher, and again, a lot harder to do for the 2-1 shift. You'll be surprised how easy this is to do at low engine speeds. Try it under 2000 RPM, it's easy to do at engine speeds where you have very little engine braking. While decelerating, apply slight pressure down on the shift lever and ever so slightly, and very very quickly, blip the throttle. A you get used to doing them at low RPS with little engine speed, you can start trying them at higher RPMs. To be smooth at higher RPMs, it helps blip the throttle but not fully close it. Blip it and just slightly have the throttle open rather than fully closed, so that you are not getting the full engine baking effect.
I've always been in the habit of rev matching my downshifts. If you can do quick, smooth down shifts, practice downshifting using less and less clutch and you'll realize its not always necessary to even pull the clutch. Try it with just slightly pulling in the clutch and it'll be smother than when you try to pull the clutch completely in.
It's an easy trick, I do it all the time. If your chains getting loose its a little tougher to do smoothly, but done correctly it makes very quick and smooth shifts.
Clutchless downshifts are a little tougher, and again, a lot harder to do for the 2-1 shift. You'll be surprised how easy this is to do at low engine speeds. Try it under 2000 RPM, it's easy to do at engine speeds where you have very little engine braking. While decelerating, apply slight pressure down on the shift lever and ever so slightly, and very very quickly, blip the throttle. A you get used to doing them at low RPS with little engine speed, you can start trying them at higher RPMs. To be smooth at higher RPMs, it helps blip the throttle but not fully close it. Blip it and just slightly have the throttle open rather than fully closed, so that you are not getting the full engine baking effect.
I've always been in the habit of rev matching my downshifts. If you can do quick, smooth down shifts, practice downshifting using less and less clutch and you'll realize its not always necessary to even pull the clutch. Try it with just slightly pulling in the clutch and it'll be smother than when you try to pull the clutch completely in.
12-05-2015, 05:20 PM
I clutchless upshift all the time, it's super fast, smooth and seamless if done correctly. Sure, some can pull the clutch just as fast but my mentality is, why use the clutch if you don't need to, it's just one less thing to do.
And it's so addicting! Hard to explain but the feeling of the gears upshifting almost seamlessly like f1 trannies, just does it for me. Like snip-snip-snip through the gears.
It's a similar concept for bikes equipped with quickshifter, so it's safe If done correctly. Some people I know have done this with their bikes for over 100,000 miles with absolutely no issues.
And it's so addicting! Hard to explain but the feeling of the gears upshifting almost seamlessly like f1 trannies, just does it for me. Like snip-snip-snip through the gears.
It's a similar concept for bikes equipped with quickshifter, so it's safe If done correctly. Some people I know have done this with their bikes for over 100,000 miles with absolutely no issues.
12-06-2015, 12:45 AM
Once you have cleared 1-2 clutch-less up shifts are fine and I find smoother than using a clutch. Downshifts I feel put to much pressure on the gearbox and clutch should be used. Just my opinion 
I often went 1st to 3rd to 5th while using the clutch on the CB as well as my N1K.
I often went 1st to 3rd to 5th while using the clutch on the CB as well as my N1K.