ADVrider

Go Back   ADVrider > Bikes > Orange Crush
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-07-2013, 10:02 AM   #1
what car?? OP
down the road
 
Joined: Dec 2010
Location: Colorado
Oddometer: 357
tire question

I am currently in Quetzeltenango, Guatemala and looking for new tires. I did find some at a local vendor; my question is this, for a 2010 990Adventure can you mount up a rear tire that is a 120/90/18 instead of the normal 150/70/18 size? What should I expect if I go this route? The tire is a Pirelli tire, don{t see how that makes a difference, but it{s also an aggressive motorcross type tire, cannot remember the model. Let me know experiences and possible expectations, thanks.

Cheers
what car?? is offline   Reply With Quote
Old 03-07-2013, 10:41 AM   #2
mousitsas
Beastly Adventurer
 
mousitsas's Avatar
 
Joined: Oct 2008
Location: Athens, Greece
Oddometer: 2,636
well, NOOOOO unless your only other choice is to ride on the rim. If you have to though, make sure you take the turns very slowly.
mousitsas is offline   Reply With Quote
Old 03-07-2013, 02:33 PM   #3
Qwik
Adrenaline Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 6,071
Not gonna be a good fit. If it beads up it will be Square
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 03-07-2013, 02:54 PM   #4
DeepInIt
Beastly Adventurer
 
DeepInIt's Avatar
 
Joined: May 2006
Location: Cordoba, Argentina
Oddometer: 1,365
You can order a tire up from GC, get something decent and the rught size.
DeepInIt is offline   Reply With Quote
Old 03-07-2013, 06:51 PM   #5
SpeedyR
SE in the SE
 
Joined: Aug 2005
Location: ATL, GA
Oddometer: 728
double check the sizes, that seems a bit odd for a size. It should be 120/100-18 which would be OK on the super enduro but would be very marginal (i.e. they(Pirelli and KTM) wouldn't recommend it as a fitment as it's putting a tire designed for a 2.15-3.0" rim on a 4" rim). it might fit but the load rating would be very low and it would be sketchy handling. a 140/80-18 would be closer but still not great, or stick with the OE size.

if it truly is a 120/90-18 then it's even worse than the 120/100-18 (lower profile, so worse fit on anarrower rim)
SpeedyR is offline   Reply With Quote
Old 03-07-2013, 06:57 PM   #6
AustinJake
TE450-KLE-FXDWG
 
AustinJake's Avatar
 
Joined: Aug 2010
Location: Austin, TX
Oddometer: 3,642
120/90x18 is not an odd size, it's very common, and I would NEVER put that size of tire on a 4" rim

D606 Rear: 120/90/18 C16 Rear: 130/80/18

__________________
____________________________________
Get fit. Stay safe. Enjoy life. Learn something to help someone in need.
AustinJake is offline   Reply With Quote
Old 03-08-2013, 02:03 AM   #7
AUT-EasyRider
Gnarly Adventurer
 
AUT-EasyRider's Avatar
 
Joined: Aug 2010
Location: Austria
Oddometer: 119
If it is really a motocross tyre you can mount it, because the measuring method is different to normal enduro tyres, if not stay away from it.
The 120 motocross is a 140 enduro width and 140 works well on the 4,25" rim, not allowed but good also see: http://www.dropbears.com/u/utilities/tyrerim.htm max. for 140/80 is 3,5"rim.
measuring method enduro <-> motocross explained on michelin site:
http://www.michelinmotorcycle.com/index.cfm?event=Baja

I only mount cross tyres (Michelin AC10, Mitas C02) when I go to the Enduro Park Ampflwang, works fine there but not on the way to the park on asphalt, really They also dont last long on the 990 (one day in the park, + 80km asphalt to get there and back home = EXPENSIVE) but the face expressions of the EXC riders when you ride the 990 through mud holes or climb steep hills is worth it
__________________
We blew it
AUT-EasyRider is offline   Reply With Quote
Old 03-08-2013, 05:17 PM   #8
what car?? OP
down the road
 
Joined: Dec 2010
Location: Colorado
Oddometer: 357
Thanks for the information!! I greatly appreciate it, I'm not sure what GC. I eventually found a tire that was in my size, Kenda Big Blocks surprisingly! I had a pair of those before I left the states. Wore quite a bit faster than my Mefo's but hey, no worries at least I'll have peace of mind and a tire that I'm familiar with. Thanks for all the information and replies, awesome!!

Cheers and pints all around.
what car?? is offline   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 07:21 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014