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+--- Thread: No clutch shifting (/showthread.php?tid=4559)
No clutch shifting - Mixagon_imp - 06-17-2021
Just been reading the clutch lever post and it got me wondering about an old subject which may have been discussed on here or not so here goes..
How many of you change gear without using the clutch ?
I've been doing it for years on the upshifts which is so easy and smooth and sometimes do it on the downshifts if conditions are right but not very often.
RE: No clutch shifting - Houtman_imp - 06-17-2021
I ALWAYS use the clutch !
RE: No clutch shifting - peterbaron - 06-17-2021
^^+1^^
RE: No clutch shifting - dave - 06-17-2021
Why would you not use the clutch?
RE: No clutch shifting - the Ferret - 06-17-2021
another clutch lever user here, on every shift up or down
RE: No clutch shifting - GoldOxide_imp - 06-17-2021
(+1) Use clutch, however, there have been numerous times I geared down without the clutch and without incident.
RE: No clutch shifting - Mixagon_imp - 06-18-2021
(06-17-2021, 09:25 PM)Dave_imp Wrote: Why would you not use the clutch?
Well yes that's what it is there for
Maybe its from days gone in the race world UK when riders could save time by shifting without the clutch so all the street guys learned the skill to be cool.
To be honest its a skill that has saved me many times in the past when a clutch cable breaks and I've rode home without a clutch otherwise I would have been stranded. I've even drove 120 miles home in a 72 Ford Cortina with a broken clutch cable. More challenging than a bike but its possible, of course if your timing is bad and you have to stop you have to start moving again in first gear with the starter motor.
Re bikes though its so easy changing up that it sometimes feels pointless using the clutch. Been doing this for over fifty years and never had any gearbox problems.
RE: No clutch shifting - jimgl3_imp - 06-20-2021
I use the clutch to start and stop and that's it. All gear shifting is clutchless, unless I'm out of sorts and need the clutch...
RE: No clutch shifting - the Ferret - 06-20-2021
I'm not so sure that you can shift quicker without the clutch than with. You have to back off the throttle, and move the shift lever to make a clutch-less shift don't you?
From an article I just read on shifting: https://www.revzilla.com/common-tread/how-to-shift-gears-on-a-motorcycle
"Clutchless shifting
You know how we said the clutch acts to disengage the crankshaft from the transmission to unload the gears and allow them to shift positions? Well that same unloading effect can be achieved by quickly and briefly rolling the gas off and then back on again. In that instant right after you air the throttle, the transmission is unloaded. If you time your upshift to coincide with that momentary unloading of the transmission, the bike can be shifted up up into the next gear. No clutch required. "
In that same time it takes to roll the throttle off and back on you could fan the clutch blade and make the shift without even rolling off the throttle if desired.
Now the new speed shifters you shift without backing off the throttle so they are quicker than an old time clutch-less shift I would think, with less risk of damage to the trans
That said, I just don't see the point of either method for riding on the street. Maybe on a race track where tenths of a second matter.
Oh and the DCT trans is even quicker at shifting yet, all controlled by computer, quickly and seamlessly with no possible damage to any transmission parts
RE: No clutch shifting - GoldOxide_imp - 06-20-2021
... yeah, even if you manually shift a Honda dual clutch transmission, I don't think Honda software will allow any excessive or "bad timing" of the shift convert to mechanical trauma. This is quite cool.