R80ST vs R80GS rear shock fit

lorazepam · 02-19-2007, 08:54 AM

is the rear drive on the ST the same as the G/S? I was looking at wilbers shock and springs for the ST, and asked them about the G/S shock to raise the rear a bit.
They didnt seem to know if they were, and were reluctant to say it would work.

jtwind · 02-19-2007, 09:32 AM

The BMW parts fiche shows the g/s and the st with different shocks, which probably isn't surprising. Works performance shows that the ST shock is 12.75 inches long and list two g/s shocks one at 13" and one at 13.31". I'm guessing if you increased the st shock by 1/2" you'd be OK. There are other factors to consider, front end height etc. JT

norton73 · 02-19-2007, 09:41 AM

When we were looking at bikes for the wife, one offering was a g/s that had been lowered by using a st shock. At least that what the seller said.

nick_rhinocycles · 02-19-2007, 11:03 AM

The ST and the G/S are essentially the same bike but with some small differences.

The G/S rear shock should fit and work perfectly on you ST.

Many people convert STs to G/S, and mostly you only need forks and a Shock.

I also have an ST!
--Nick

Wirespokes · 02-19-2007, 12:41 PM

The rear ends are exactly the same except for the length of the shock. I don't know what effect raising the rear would have on steering geometry, but that's the only effect I can see from installing the G/S shock.

lorazepam · 02-19-2007, 01:11 PM

Thanks for the help guys, I may just go with the stock shock, to avoid any handling problems.

02-19-2007, 08:54 AM	#1
lorazepam ^OP Two fisted burger Joined: Mar 2005 Location: Ashland County, Oh Oddometer: 8,169	R80ST vs R80GS rear shock fit is the rear drive on the ST the same as the G/S? I was looking at wilbers shock and springs for the ST, and asked them about the G/S shock to raise the rear a bit. They didnt seem to know if they were, and were reluctant to say it would work. __________________ "In the end, I just want to break even." R. Manuel

02-19-2007, 09:41 AM	#3
norton73 drinkin' Joined: Dec 2003 Location: Beautiful Downtown Springville, Alabama Oddometer: 8,075	When we were looking at bikes for the wife, one offering was a g/s that had been lowered by using a st shock. At least that what the seller said. __________________ Loose nut holding the handlebars He’s one of those who knows that life is just a leap of faith. Spread your arms and hold your breath, always trust your cape. Guy Clark "The Cape"

02-19-2007, 01:11 PM	#6
lorazepam ^OP Two fisted burger Joined: Mar 2005 Location: Ashland County, Oh Oddometer: 8,169	Thanks for the help guys, I may just go with the stock shock, to avoid any handling problems. __________________ "In the end, I just want to break even." R. Manuel

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: .
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

02-19-2007, 09:32 AM	#2
jtwind Wisconsin Airhead Joined: Nov 2004 Location: Madison WI Oddometer: 3,451	The BMW parts fiche shows the g/s and the st with different shocks, which probably isn't surprising. Works performance shows that the ST shock is 12.75 inches long and list two g/s shocks one at 13" and one at 13.31". I'm guessing if you increased the st shock by 1/2" you'd be OK. There are other factors to consider, front end height etc. JT

02-19-2007, 11:03 AM	#4
nick_rhinocycles Gnarly Adventurer Joined: Oct 2006 Location: San Francisco, Moto capital of N. America Oddometer: 476	The ST and the G/S are essentially the same bike but with some small differences. The G/S rear shock should fit and work perfectly on you ST. Many people convert STs to G/S, and mostly you only need forks and a Shock. I also have an ST! --Nick

02-19-2007, 12:41 PM	#5
Wirespokes Beemerholics Anonymous Joined: Jul 2002 Location: Jackson's Bottom Oregon Oddometer: 7,354	The rear ends are exactly the same except for the length of the shock. I don't know what effect raising the rear would have on steering geometry, but that's the only effect I can see from installing the G/S shock.