Shift assist on k1200GT? - K-Bikes.com - Excellence in Motion
 
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Old Jun 8th, 2009, 1:50 am Thread Starter
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Shift assist on k1200GT?

I've noticed that the gear changing when two up is not as good as when riding solo. My other half complains that sometimes it's less than stellar and a little jerky. I never had this problem with my chain drive bikes, so I wondered whether adding the shift assist (quick shifter) would help or not?

Would be nice to think yes, but logic is telling me that it won't .

Any thoughts?
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Old Jun 8th, 2009, 3:52 am
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Logic would be right, then.

All the shift assist does is momentarily cut the power to relieve the load on the transmission so you can upshift easier. You can achieve the same effect by blipping the throttle while you upshift and never touching the clutch. If you match the RPMs and practice a bit, you can do just as smooth an upshift as if you had a shift assist.

So my advice is to go ride more, and practice, practice, practice.

Ken
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Old Jun 8th, 2009, 4:02 am Thread Starter
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Thanks for that, but with nearly a year and 18000kms on this bike, and being an aging 50 year old pilot, I'm beginning to think that I'll never get it right!.
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Old Jun 8th, 2009, 4:31 am
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Sounds to me like the best option is to leave the wife at home!

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Last edited by Dadicool59; Jun 8th, 2009 at 4:41 am.
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Old Jun 8th, 2009, 6:47 am
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Quote:
Originally Posted by GTConvert
Thanks for that, but with nearly a year and 18000kms on this bike, and being an aging 50 year old pilot, I'm beginning to think that I'll never get it right!.
50 years young!

Try this: barely fan the clutch. It's less than an inch of movement. I bet you're pulling the clutch all the way in.

-=grif=-
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Old Jun 15th, 2009, 10:56 pm
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Adjust clutch

Recommended read Clutch Adjustment by kakalika , Hal
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Old Mar 1st, 2011, 3:39 am
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Shift Assist K1300gt

Hi guys, My first post....so if I have broken any newbie rules please accept my flowers now.

I have done 20,000klms on my 1300 and was recently lent a K1300S with shift assist....now I love the GT's wind management ability ( aftermarket screen ), adequate power, heated seats, cruise etc etc...you will all know what I am taking about...as a distance bike it's hard to ignore it as the best available. The shift assist fitted to the 1300S is stunning....and I have read the posts about changing gears etc and I drive a Porsche GT3 so to say I have a passing interest in things mechanical would be an understatement.
I can't mimic what shift assist does...and I am 53 and have had a long association with bikes and would describe my riding/driving ability as "above average".

MY DEALER TELLS ME THAT THE ONLY IMPEDIMENT TO FITTING (bmw factory) SHIFT ASSIST TO THE 1300GT IS BMW WILL NOT RELEASE THE CODE TO THE COMPUTER TO ALLOW THE PART TO BE FITTED.

The perfect bike is a computer code away....does anyone on this forum have any suggestions ?

Cheers Roger
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Old Apr 3rd, 2011, 9:05 am
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Sure, buy a K1200S! I am not trying to offend, but realistically if BMW will not make it happen, you'll need a team of hackers and a set of test bikes to figure this out; not a small undertaking. Have the capital? Then where is your market as by all appearances the K1600GT will be the new GT. How much of the existing owner base would pay for your end product? The K1600GT will not see a tremendous amount of benefit from shift assist given it's massive amount of torque is available at 1500 rpms

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Old Apr 3rd, 2011, 10:19 am
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Quote:
Originally Posted by grifscoots
50 years young!

Try this: barely fan the clutch. It's less than an inch of movement. I bet you're pulling the clutch all the way in.
I agree. It shifts really smooth with only enough clutch to feel the resistance on the lever. It makes a huge difference on mine.
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Old Apr 3rd, 2011, 11:30 am
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As Meese mentioned, I find that not dropping the RPMs significantly when shifting is the key on my bike.

If I let the RPMs drop more than say 500 during the shift, the 10:1 compression on the GT will grab hold as the clutch is released, decelerating the bike. Then giving it some gas to complete the shift doubles the jerky motion, joggling the wife and making the shift feel clunky.

I've learned to keep the RPMs almost flat during the shift, and as pointed out above just barely 'suggest' to the clutch that it should shift. Less than an inch of travel is about right, and make it quick.

Get this down and your shifts will be butter-smooth with no 'clunk' and no joggling of the wife.


--
2008 K1200GT
1982 CB750K
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1981 GS850G
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Last edited by KitsapGT; Apr 3rd, 2011 at 11:40 am. Reason: Editing for brevity/clarity
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