BMWSportTouring BMWST DB
Previous Thread
Next Thread
Print Thread
Page 3 of 10 1 2 3 4 5 9 10
#1002879 - 12/29/17 04:19 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Jan 2008
Posts: 902
terryofperry Online
Member
terryofperry  Online
Member

Joined: Jan 2008
Posts: 902
wave Dave

Terry


Terry

Perry, GA
#1002889 - 12/29/17 09:26 PM Re: 2017 R1200RT Stability [Re: Bernie]  
Joined: Nov 2011
Posts: 2,622
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,622
Naples FL & Cape Cod
Originally Posted by Bernie
Yes Terry, I can fully agree with you. I have never had a handling problem due to the 50 liter Top Case on my 2007 RT. It handled great at any speed and any load.
The 2018 RT with Metzler Z8 tires inflated to 36 psi front and 42 psi rear at a cold temperature of 60 degrees F (BMW’s idea of cold tire temperature), handle like they are glued to the road.
In 2,600 miles I have not detected any in-stability of any kind or any noises using these tires on my 2018 RT-LC. And if you have ever traveled with me, you know I am not exactly a slow rider (38 mpg).


Too bad we’re at opposite ends of the state. Was your bike delivered with Metzler Z8 tires? I wonder why bmw changed them from one year to the next.

I test drove a 2018 at another dealer a couple weeks ago and didn’t notice any wiggle at all.

Last edited by roger 04 rt; 12/29/17 09:31 PM.
#1002891 - 12/29/17 09:51 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Dec 2008
Posts: 1,874
Indy Dave Offline
Member
Indy Dave  Offline
Member

Joined: Dec 2008
Posts: 1,874
Indianapolis
BMW seems to have a couple of 'oem' tire suppliers. 2 friends bought new 2115 RT’s. One had PR4'S the other, Metzlers. So is it just what the factory has on the line at the time OR are bikes shipped to the dealer without tires and the dealer is allotted a sun to put shoes on the bike when they assemble it?


Workin' Them Angels . . .overtime
06 R12RT

The point of the journey is not to arrive...

[I'm the handsome one on the right, Gray Bastard on the left and Jerry in the middle.]
#1002892 - 12/29/17 10:07 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Apr 2002
Posts: 2,424
Bernie Offline
Member
Bernie  Offline
Member

Joined: Apr 2002
Posts: 2,424
Jax, FL
Originally Posted by roger 04 rt
Originally Posted by Bernie
Yes Terry, I can fully agree with you. I have never had a handling problem due to the 50 liter Top Case on my 2007 RT. It handled great at any speed and any load.
The 2018 RT with Metzler Z8 tires inflated to 36 psi front and 42 psi rear at a cold temperature of 60 degrees F (BMW’s idea of cold tire temperature), handle like they are glued to the road.
In 2,600 miles I have not detected any in-stability of any kind or any noises using these tires on my 2018 RT-LC. And if you have ever traveled with me, you know I am not exactly a slow rider (38 mpg).


Too bad we’re at opposite ends of the state. Was your bike delivered with Metzler Z8 tires? I wonder why bmw changed them from one year to the next.

I test drove a 2018 at another dealer a couple weeks ago and didn’t notice any wiggle at all.


My 2018 was delivered with the Metzler Z8’s which is a strange thing anyway, as Metzler’s newest tires are the RoadTec01 which are a replacement for the Z8. But I guess inventory at the factory has to be used up.
I am going for a ride tomorrow and decided to increase my front tire air pressure to 40 psi, to see what I have been missing.
Roger please understand that after wearing out several Pilot Road 4’s, including the heavyweight compounds I have never been a big fan of the Michelin tires.
I rather have the Pirelli Angel GT, with A compound. They don’t last as long as the Michelin’s, but they feel more planted.


Bernie
Jax, FL
2018 R1200RT, Alpinweiss, starting out fresh.
2007 R1200RT, Double Silver 188,700 Smiles, SOLD
2000 R1100RT, Opal 104,000 Smiles, SOLD
BMW-MOA, BMW-RA,
AMA, BMW-NEF,
#1002897 - 12/29/17 11:40 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Sep 2004
Posts: 4,533
Bill_Walker Offline
Member
Bill_Walker  Offline
Member

Joined: Sep 2004
Posts: 4,533
San Marcos, CA USA
Originally Posted by roger 04 rt
In my case I’ve noticed that even at low speeds, a road or wind disturbance and a bit of heavy handedness can lead to a wiggle. It seems more prone to that on trailing throttle.


Unlike your oilhead, the wethead RT has a steering damper, to go with its steeper fork rake. I'm starting to wonder whether yours could be defective (they must have put it on there for a reason, right?). I haven't experienced any of the issues on my '15 that you're experiencing on your new bike. It is on PR4 GTs, though.


"Dry-Town" Crew, San Diego
'15 R1200RT
'12 Kawasaki KLX250S
'04 R1150RT (gone)
'02 Suzuki V-Strom (gone)
#1002902 - 12/30/17 12:55 AM Re: 2017 R1200RT Stability [Re: Bill_Walker]  
Joined: Apr 2002
Posts: 2,424
Bernie Offline
Member
Bernie  Offline
Member

Joined: Apr 2002
Posts: 2,424
Jax, FL
Well, that could be possible, steering dampers will fail.


Bernie
Jax, FL
2018 R1200RT, Alpinweiss, starting out fresh.
2007 R1200RT, Double Silver 188,700 Smiles, SOLD
2000 R1100RT, Opal 104,000 Smiles, SOLD
BMW-MOA, BMW-RA,
AMA, BMW-NEF,
#1002924 - 12/30/17 01:49 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Nov 2011
Posts: 2,622
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,622
Naples FL & Cape Cod
Good point regarding the steering damper. I didn't know there was one until a few days ago when my cousin (owns a 2016 R1200RT with PR4s up in MA) pointed it out.

I've inspected its attachment to the steering and that seems fine and have sat of the back of the bike and checked for fluid resistance. The damping is there but I don't have any way to know how much or little there should be. It seems okay though.

Since I put 10 miles on a 2018 prior to purchasing the 2017 (from another dealer due to the first dealer not having a 2017), I can say that I didn't notice any out-of-the-ordinary manners. I'm going to check today what tires are on the 2018.

I've been out riding most days since I got the bike and thoroughly enjoy it. I will eventually figure out whether this over-quickness in the steering/wiggle is just me and the bike as a pair, or the tires, or whatever. Thanks for the ideas.

#1002927 - 12/30/17 02:42 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Nov 2011
Posts: 2,622
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,622
Naples FL & Cape Cod
I just heard from the 2018 RT dealer, the tires I test rode were Metzeler Roadtec Z8.

#1002934 - 12/30/17 04:28 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Jul 2015
Posts: 11
Daveyator Offline
Newer Member
Daveyator  Offline
Newer Member

Joined: Jul 2015
Posts: 11
Yucaipa, CA
My 2015 came with Metzelers. While never alarming me it's always been a bit sensitive to wind. I just got Pilot Road 4s and a lot of that is gone but I will now try the higher pressure in the front. As a side note my bike vibrated horribly after getting my new tires so I stopped and notice the front wheel had no balancing weights. Guess I should have done a better pre flight after service.


2015 R1200RT (Current)
2 R1200Rs
K1200RS
Harley Superglide (should have kept her)
R1100R
V40 Sabre
V45 Magna
2 CX500s
#1002949 - 12/30/17 11:42 PM Re: 2017 R1200RT Stability [Re: roger 04 rt]  
Joined: Sep 2006
Posts: 90
old_farmer Offline
Member
old_farmer  Offline
Member

Joined: Sep 2006
Posts: 90
Northwest IL
My 2017 came with Z8's. Compared to the 99 R1100RT I used to have, the wethead is a bit twitchy at slower speeds. But the faster it goes, the more stable it seems. It doesn't seem to be any more sensitive to crosswinds than the 1100 was. I try to run the recommended 36/42, but I might experiment with the front a bit based on what you all are reporting.


Dave
Page 3 of 10 1 2 3 4 5 9 10

Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.009s Queries: 14 (0.002s) Memory: 2.8119 MB (Peak: 3.0005 MB) Zlib enabled. Server Time: 2018-04-27 08:38:28 UTC