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.