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post #1 of 10 Old Apr 14th, 2017, 6:02 am Thread Starter
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ESA

According to my GS911 the front shock on my K1300GT is not sending a signal to the control module. It is stuck in 1 up. Most of the time I ride 2 up. I am not going to have it replaced unless it drags in curves. I am concerned however that it will drag riding 2 up on trips with luggage. Any thoughts?

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Al Strickland
Blairsville, Georgia
1967 Honda Cub
1972 Honda CB350
1979 Suzuki GS750E
2001 R1150GS (gone -- victim of a Highway 28 curve)
2002 K1200LT Trike (now history, transmission died)
2009 R1200GS
2013 K1600GTL
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2009 K1300GT
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post #2 of 10 Old Apr 14th, 2017, 12:06 pm
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Re: ESA

The ESA system adjusts damping on both shocks (Comfort, Normal, Sport) while riding, and adjusts preload on the rear shock (One-up, One-up + Luggage, Two-up) while stationary with the engine running.

The front shock has no preload adjustments, so the helmet/luggage settings have no effect up front.

I just did a bunch of research on this, and there are no aftermarket ESA compatible shocks available for the K12/13GT.

Wilburs is currently the only real option available for these bikes, at 1/2-1/3rd of BMW's factory ESA shock pricing.

I did hear that Tractive (who designed the original ESA system for BMW) is working on ESA compatible replacement shocks for these bikes, but they have no committed release date yet.

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 63K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


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All lower 48 states plus Alaska on the K13GT in two weeks . . .

Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #3 of 10 Old Apr 14th, 2017, 12:43 pm
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Re: ESA

Quote:
Originally Posted by meese View Post
I just did a bunch of research on this, and there are no aftermarket ESA compatible shocks available for the K12/13GT. Wilburs is currently the only real option available for these bikes, at 1/2-1/3rd of BMW's factory ESA shock pricing.
Ted Porter's Beemershop uses the ESA motors on the original shocks that they transfer to Wilber's shocks.

2009 K1300GT
2005 BMW R1200RT - gone
1984 Kawasaki ZX750-E1 Turbo

Last edited by TF1200RT; Apr 14th, 2017 at 11:46 pm.
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post #4 of 10 Old Apr 14th, 2017, 10:36 pm
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Re: ESA

For the K1600, yes, they can do ESA compatible replacements using some parts off your old ESA shocks.

And you can get ESA replacement shocks for some RT and GS bikes.

But not for the K12/13GT Slant/4 bikes.

Works Performance used to supply ESA compatible shocks for the K12GT, but they don't any longer.

And hlins no longer supplies any shocks for the Slant/4 bikes.

Trust me, I did my research, then I ordered the top of the line Wilburs from Ted...

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 63K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


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All lower 48 states plus Alaska on the K13GT in two weeks . . .

Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #5 of 10 Old Apr 14th, 2017, 11:48 pm
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Re: ESA

Quote:
Originally Posted by meese View Post
But not for the K12/13GT Slant/4 bikes.
Well, that sucks. I had Wilber's on my 12RT so I guess I can live without the ESA adjustment. I only have 13k on the bike so I won't be needing them anytime soon.

2009 K1300GT
2005 BMW R1200RT - gone
1984 Kawasaki ZX750-E1 Turbo
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post #6 of 10 Old Apr 15th, 2017, 8:22 am
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Re: ESA

I did a lot of research in 2014 and 2015, not as recently as Meese. Meese didn't mention Race Tech, who rebuilt the rear ESA shock for my 2007 K1200GT in 2015.

Don't assume anything when it comes to KGT shocks. There are at least two different types, which are not compatible. (I believe that there are three different types for the 2006-2008 K1200GTs alone.) For example, a shock from a 2008 K1200GT may not be fully compatible with a 2007 K1200GT - the preload won't work. If you replace your rear shock with a later version, you may have to replace your onboard computer (ZFE?) for compatibility. DAMHIK.

See post #23 and especially post #38 in this thread:

http://www.i-bmw.com/showpost.php?p=589510&postcount=23
http://www.i-bmw.com/showpost.php?p=669867&postcount=38
Full thread: http://www.i-bmw.com/showthread.php?t=15296
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post #7 of 10 Old Apr 15th, 2017, 9:05 am
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Re: ESA

Quote:
Originally Posted by TF1200RT View Post
I only have 13k on the bike so I won't be needing them anytime soon.
Tractive (who designed the original ESA system for BMW) is working on ESA compatible replacement shocks for these bikes, but they have no committed release date yet. They might have something ready in 2018.

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 63K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


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All lower 48 states plus Alaska on the K13GT in two weeks . . .

Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #8 of 10 Old Apr 17th, 2017, 9:25 am
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Re: ESA

Quote:
Originally Posted by meese View Post
Tractive (who designed the original ESA system for BMW) is working on ESA compatible replacement shocks for these bikes, but they have no committed release date yet. They might have something ready in 2018.
Considering the variation in ESA designs between different instances of K1200GTs (and K1300GTs?), I wonder whether Tractive can have shocks that works with all models of KGTs, or whether they will bypass the K1200GTs and K1300GTs and focus on the K1600 models?

As I pointed out earlier, there are two or three different types of shocks for K1200GTs, and they are not interchangeable. One type uses a potentiometer while another type uses Hall Effect switches. The cable wiring is different between them, and the onboard computer must also be compatible with the replacement. (Newer onboard computers should work with the older shocks, but not visa-versa.)
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post #9 of 10 Old Apr 17th, 2017, 11:07 pm
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Re: ESA

Not sure of the details, that's just what I got from talking to Ted Porter.

Again, since Tractive did the original design for BMW, one could reasonably assume that they're familiar with the subtle details...

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 63K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


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All lower 48 states plus Alaska on the K13GT in two weeks . . .

Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #10 of 10 Old May 10th, 2018, 7:09 pm
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Re: ESA

I replaced the original ESA shocks at 20k with Wilburs from Ted. Honestly I have never adjusted anything. Not preload, not high/lo dampening. One up, two up, fully loaded they just work. It was the first time I understood what "riding on rails" meant. It tracks soooo good. Now I have to get a new shock for my Xchallenge. Not looking forward to that pricetag. But I know I will definitely be adjusting preload and rebound dampening.
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