ADVrider

Go Back   ADVrider > Riding > The perfect line and other riding myths
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-26-2015, 08:42 AM   #1
Buzz Watkins OP
Gnarly Adventurer
 
Joined: Sep 2007
Location: About 10 corners back
Oddometer: 187
190/50-17 vs 190/55-17

I believe the reason most people like the 55 better is simple geometry changes that automatically happen when they mount one on a bike set up from the factory for a 50.

If one were to make changes to the front end (equal to the 55 difference) while using the 50 tire, is the 55 still going to turn better?

I only ask because I'm thinking a flatter 50 would last longer and stay rounder for a lot of slabbing I'll have to do on my next set.
Buzz Watkins is offline   Reply With Quote
Old 03-26-2015, 09:02 AM   #2
fast4d
Beastly Adventurer
 
Joined: Jul 2007
Location: Los Angeles, CA
Oddometer: 2,401
55 is a touch taller but that usually helps because it shifts weight forward.

55 tire is MUCH easier/faster to lean over.

I don't think it has much effect on wear.

if you don't want it to square off then get a mich PR2 or 4. or a sport touring tire.

PR series I found are much more resistant to squaring off and its affects.

if 190/55 was not available, I rather use a 180 tire than a 190-50
__________________
Alan
2011 KTM RC8R
2012 BMW S1000RR
2000 Kawasaki ZRX1100
2013 KTM SMT 990
fast4d is offline   Reply With Quote
Old 03-26-2015, 10:06 AM   #3
rbrsddn
3banger
 
rbrsddn's Avatar
 
Joined: Oct 2006
Location: Madison,CT
Oddometer: 2,661
My Speed Triple came stock with the 190/50 (6 inch rim). When the 190/55's came out, I put one on, and couldn't believe how much quicker it dropped into turns! I'll never go back to the 50. Here is an article about it. Sorry if there is an ad in there... http://www.sportrider.com/five-percent-difference
rbrsddn is offline   Reply With Quote
Old 03-26-2015, 10:10 AM   #4
Tripped1
Likely Lost.
 
Tripped1's Avatar
 
Joined: Aug 2009
Location: Sandy Eggo
Oddometer: 7,899
Quote:
Originally Posted by rbrsddn View Post
My Speed Triple came stock with the 190/50 (6 inch rim). When the 190/55's came out, I put one on, and couldn't believe how much quicker it dropped into turns! I'll never go back to the 50. Here is an article about it. Sorry if there is an ad in there... http://www.sportrider.com/five-percent-difference
A lot of us were running 180/55s before 190/55s were commonly available on that bike.
__________________
Quote:
Originally Posted by RottenScummyTroll View Post
Show folks something with a clutch and carburetor, and it's like teaching a baboon to use a Macbook.
Tripped1 is online now   Reply With Quote
Old 03-26-2015, 10:20 AM   #5
rbrsddn
3banger
 
rbrsddn's Avatar
 
Joined: Oct 2006
Location: Madison,CT
Oddometer: 2,661
Quote:
Originally Posted by Tripped1 View Post
A lot of us were running 180/55s before 190/55s were commonly available on that bike.
Yeah, but putting the 180 on a 6 in. changed the profile. The 190/55 has essentially the same profile as the 180/55 0n a 5.5. It works for me.
rbrsddn is offline   Reply With Quote
Old 03-26-2015, 10:24 AM   #6
Maggot12
U'mmmm yeaah!!
 
Maggot12's Avatar
 
Joined: Feb 2010
Location: Barrie Ont
Oddometer: 5,127
Quote:
Originally Posted by rbrsddn View Post
My Speed Triple came stock with the 190/50 (6 inch rim). When the 190/55's came out, I put one on, and couldn't believe how much quicker it dropped into turns! I'll never go back to the 50. Here is an article about it. Sorry if there is an ad in there... http://www.sportrider.com/five-percent-difference
Could some of the difference been from a worn out tire and a fresh one?
Even the same brand and size, it often feels like a new bike when new rubber is mounted.
__________________
Maggot

Don't sweat the petty things; Pet the sweaty things !!!
Maggot12 is offline   Reply With Quote
Old 03-26-2015, 10:33 AM   #7
rbrsddn
3banger
 
rbrsddn's Avatar
 
Joined: Oct 2006
Location: Madison,CT
Oddometer: 2,661
Quote:
Originally Posted by Maggot12 View Post
Could some of the difference been from a worn out tire and a fresh one?
Even the same brand and size, it often feels like a new bike when new rubber is mounted.
Probably in some cases. But the 190/50 has a really flat profile compared to the 190/55. At least the Metzelers I was using did. The difference was huge.
rbrsddn is offline   Reply With Quote
Old 03-26-2015, 10:46 AM   #8
Buzz Watkins OP
Gnarly Adventurer
 
Joined: Sep 2007
Location: About 10 corners back
Oddometer: 187
Thanks for all the info guys. But doesn't lowering the front produce the same results geometry wise? Shifting weight forward etc...?
Buzz Watkins is offline   Reply With Quote
Old 03-26-2015, 11:17 AM   #9
windblown101
Studly Adventurer
 
Joined: May 2010
Location: Star Tannery, VA
Oddometer: 877
Quote:
Originally Posted by Buzz Watkins View Post
Thanks for all the info guys. But doesn't lowering the front produce the same results geometry wise? Shifting weight forward etc...?
I'll preface the following with a disclaimer: I'm not tire/geometry expert, but here's my take on it.

To some degree, yes. Lowering the front will change the geometry so that the bike turns in a bit easier. This is similar to what happens when mounting a 55 series rather than a 50 series on the rear. There are a few differences though.

1) Lowering the front decreases ground clearance slightly at lean.
2) The 55 series still has a sharper profile which may also decrease turning effort slightly on it's own, plus being a sharper profile = more meat on the ground at lean.

If the 50 series profile is working for you I wouldn't worry about changing it. On the other hand if you found a deal on a 55 series tire it might be good to try it to see if you like it better.

When I rode a lot I'd experiment with lots of tires. Geometry changes, etc. It's not like any of them stayed on long anyway. If you aren't riding enough to go through a few sets of tires every year then it makes it a bit harder, but also tends to matter less in a sense as well.
windblown101 is offline   Reply With Quote
Old 03-26-2015, 02:45 PM   #10
C/1/509
Beastly Adventurer
 
Joined: Jul 2006
Oddometer: 5,079
I like the difference
C/1/509 is offline   Reply With Quote
Old 03-26-2015, 04:05 PM   #11
Tripped1
Likely Lost.
 
Tripped1's Avatar
 
Joined: Aug 2009
Location: Sandy Eggo
Oddometer: 7,899
Quote:
Originally Posted by rbrsddn View Post
Yeah, but putting the 180 on a 6 in. changed the profile. The 190/55 has essentially the same profile as the 180/55 0n a 5.5. It works for me.
It was still better than 190/50s

Quote:
Originally Posted by Maggot12 View Post
Could some of the difference been from a worn out tire and a fresh one?
Even the same brand and size, it often feels like a new bike when new rubber is mounted.
Not in my case I pulled a brand new 190/50 (bridgestone I think it was) off and swapped it to a 180/55 when Diablos first came out (remember they were giving free fronts with the rear?)

Of course, I also chopped a 1/2" out of the dogbone and dropped the froks in the triples to get mine to turn properly. Stock my 2000 Speedie was ALL about running wide with little provocation.
__________________
Quote:
Originally Posted by RottenScummyTroll View Post
Show folks something with a clutch and carburetor, and it's like teaching a baboon to use a Macbook.
Tripped1 is online now   Reply With Quote
Old 03-26-2015, 06:02 PM   #12
fast4d
Beastly Adventurer
 
Joined: Jul 2007
Location: Los Angeles, CA
Oddometer: 2,401
aprilia rsv came with 180 rear with a 6" rim
__________________
Alan
2011 KTM RC8R
2012 BMW S1000RR
2000 Kawasaki ZRX1100
2013 KTM SMT 990
fast4d is offline   Reply With Quote
Old 03-26-2015, 06:09 PM   #13
Tripped1
Likely Lost.
 
Tripped1's Avatar
 
Joined: Aug 2009
Location: Sandy Eggo
Oddometer: 7,899
Quote:
Originally Posted by fast4d View Post
aprilia rsv came with 180 rear with a 6" rim
Yeah, fitment is fire ,5-6" wheels for most 180s, and back then a 190 was pretty rare.
__________________
Quote:
Originally Posted by RottenScummyTroll View Post
Show folks something with a clutch and carburetor, and it's like teaching a baboon to use a Macbook.
Tripped1 is online now   Reply With Quote
Old 03-26-2015, 07:01 PM   #14
rbrsddn
3banger
 
rbrsddn's Avatar
 
Joined: Oct 2006
Location: Madison,CT
Oddometer: 2,661
L

Quote:
Originally Posted by Tripped1 View Post
Yeah, fitment is fire ,5-6" wheels for most 180s, and back then a 190 was pretty rare.
Maybe I will try a 200/55 next, just to be different. 180's look too skinny!
rbrsddn is offline   Reply With Quote
Old Yesterday, 04:48 AM   #15
Tripped1
Likely Lost.
 
Tripped1's Avatar
 
Joined: Aug 2009
Location: Sandy Eggo
Oddometer: 7,899
Quote:
Originally Posted by rbrsddn View Post
Maybe I will try a 200/55 next, just to be different. 180's look too skinny!
I nearly did on the KTM, Super Corsa SPs have a 200/55 fittment for 6" its stock on a Panigale
__________________
Quote:
Originally Posted by RottenScummyTroll View Post
Show folks something with a clutch and carburetor, and it's like teaching a baboon to use a Macbook.
Tripped1 is online now   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:54 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2015