R1200RS + R1250RS Forum
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Sun Aug 18, 2019 1:07 am (Last edited: Sun Aug 18, 2019 1:08 am)
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Brand new 1250RS which came with the quick shifter.... |
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Zitat von M3M im Beitrag #1 The answer has been, variably yes. Plenty of old threads if you want to take time off the bike to read them. My opinion has been that either the bike breaks in or the rider breaks in, but in the end, most riders report improvement over time. After re-consulting the manual a bunch of times to confirm technique, and putting in a lot of clutchless miles, my shiftless clutching works as advertised. I'll disagree with Lee a little - which makes me nervous - but one doesn't need to close the throttle out - simply keep the throttle constant before and during the shift. "A change in the position of the throttle twistgrip during a gearshift can cause the function to abort and/or lead to a missed shift." On the other hand, downshifting with the throttle closed is cool and sounds professional, as you get an automatic blip of the throttle without having to do it yourself.... In fact, part of my early trouble with the pro shift assistant was my ingrained habit of blipping the throttle to match RPMs when down shifting under hard braking. Have fun. “A good man always knows his limitations.” |
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Zitat von M3M im Beitrag #1 Not so fast. Lee and Ray both touched on the answer, and you will find that once you understand how it works it becomes second nature. First off, remember this - the throttle position sensor is very sensitive. For upshifting: You can upshift if the throttle is constant (changes up with with a jerk) or increasing / accelerating (changes up smoother). The quicker the twist on the throttle, the smoother the change. Here is the important part - if you intend to upshift but you are ever so slightly (or more) rolling forward on the throttle the gear lever will fail to go up and you will not be able to shift up. For downshifting: You can downshift if the throttle is being rolled forward - does not have to be closed fully, as in to the stop of the throttle grip - just not twisting backward. If the throttle is held constant it may not shift down, so it should be rolling forward. Here is the important part - if the throttle is being rolled backward (i.e. increasing) then the gear lever will fail to go down and you will not be able to shift down. So, when you say "it fails to shift" - do you recall if the throttle was being applied counter to what it is supposed to be doing by design? It takes a little getting used to, but once you do, it never fails to shift. Regards, |
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Zitat von gunter im Beitrag #5 Gunther - so does the US Manual - see attached. It is misleading and in my opinion not written precisely. The name of the function itself ("quickshifter") connotes a [quick] changing of gear which is not done while one is riding at a constant speed. When I am accelerating hard, I am twisting that grip backwards and my foot is firing off the gear changes - the throttle is not constant at any point. Likewise when I am decelerating, I twist the grip forward as I press the gear lever downward [sometimes in sync; twist+press], and again the throttle is not held constant. So I suspect that they mean that for the precise instant in which the change is made, the throttle must be constant for that moment, or else it makes no sense. Pro Assistant.PNG - Bild entfernt (keine Rechte) I have a couple of nice quickshifter changes in this video:
Regards,
Grumpy Goat RSWasserboxer.com |
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I pity the poor transmission in my '16 when I bought it. 40+ years of ingrained clutch shifting made the transition to the GSAP "crunchy" to say the least. It took a few thousand miles to "get it". Then BMW bought that bike back from me (another issue) and it has been smooth sailing on the '17 since. I DID have the little box on the shifter intermittently fail and was replaced under warranty.
2017 R1200RS- 25,000 mi. 2 yrs.
2003 R1100S Boxer Cup Replika #6/200 1985 K100/1100RS- 326,000 mi. 33 yrs. 2016 R1200RS- 28,322 mi. 18 mo. (gone) 2011 R1200RT- 30,000 mi. 2 yr. (gone) 2005 R1200ST- 58,000 mi. 8 yr. 3rd deer killed it. 1999 R1100S- 15,000 mi. 2 yr. (gone) 1996 Ducati 900SS/SP- 89,000 mi. 12 yr. (gone) 500,000+ BMW miles |
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I thought the name was "Gear Shift Assist Pro"? No "quick" incorporated? After 10000 miles on my RS the GSAP was working very nicely. I was expecting all of the reported "improvements" when I bought the RT, but so far I have found it clunky when changing up and the throttle blip on changing down is almost imperceptible. I have performed the "recalibration" procedure as per the manual, which seemed to improve it a bit but not as much as I'd hoped. I'm hoping that this is "just me" and it will improve with time.... Bridgestone 175 Hurricane Scrambler - Royal Enfield 250 Crusader - Norton Atlas 750 (two, first one stolen) - 25 years - F800ST - F800GT - R1200RS - R1250RT |
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The shifter must also be returned to "normal" between shifts. I ride 2016 R1200RS, 2018 R1200GSA, 2016 Honda PCX150 |
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Zitat von MrVvrroomm im Beitrag #12 Agreed. Thanks for the link.
Regards,
Grumpy Goat RSWasserboxer.com |
Zitat von Grumpy Goat im Beitrag #8Zitat von gunter im Beitrag #5 IMHO full WOT is a pretty static load, wouldn't you agree? :-)
"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett |
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