Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Confused with my Conti Trail Kings

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Confused with my Conti Trail Kings

Old 03-30-18, 12:31 PM
  #1  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
Confused with my Conti Trail Kings

Some months ago I bought a 2.4″ and a 2.2″ Trail King for my hardtail. Recently I had to replace a spoke on the rear wheel(2.2″ tire) and noticed something strange:
the front<—>rear marking vs thread pattern is inversed on one tire.

Pics:









The position of the tires is the same in the first and second pic. Which one is “right” ? I’d say the front tire.
cpper is offline  
Old 03-30-18, 01:23 PM
  #2  
DrIsotope
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,553

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4899 Post(s)
Liked 1,694 Times in 944 Posts
If both tires are oriented correctly, the front tire is on backwards, at least according to Conti's recommendation.
__________________
DrIsotope is offline  
Old 03-30-18, 02:19 PM
  #3  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
What is / where have you found Conti's recommendation ?
cpper is offline  
Old 03-30-18, 02:21 PM
  #4  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,599

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,310 Times in 823 Posts
rear gabs dirt for traction, front is oriented for braking...
fietsbob is offline  
Old 03-30-18, 02:25 PM
  #5  
DrIsotope
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,553

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4899 Post(s)
Liked 1,694 Times in 944 Posts
Originally Posted by cpper View Post
What is / where have you found Conti's recommendation ?
It's right there on the sidewall of the tire. The front tire should have the word "Front" aiming forward, and the rear should have "Rear" aiming forward. Nothing new, lots of Conti tires are like this. As @fietsbob pointed out, rear for driving traction, front for braking traction.
__________________
DrIsotope is offline  
Old 03-30-18, 02:42 PM
  #6  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
There are no specific front / rear versions for the Trail Kings. I mentioned 2.4" front and 2.2" rear since that's how I've put them on my bike.
cpper is offline  
Old 03-30-18, 02:50 PM
  #7  
DrIsotope
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,553

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4899 Post(s)
Liked 1,694 Times in 944 Posts
There aren't... but there are. Conti wants the tire mounted one way for running on the front, and flipped the opposite direction for running on the rear. Because if they didn't, they wouldn't bother with the direction indicators on the sidewalls.
__________________
DrIsotope is offline  
Old 03-30-18, 03:13 PM
  #8  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
Alright, I think there's some confusion in this thread
Look at the pics in the first post, the tires are in the same position in both pics.
As you can see in the first pic, the front arrow points to the left on both tires. However, in the second pic, which is taken from 90° to the left, the treads are clearly reversed. That means that the front<-->rear marker vs. tread pattern is reversed on one tire.
cpper is offline  
Old 03-30-18, 05:58 PM
  #9  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 12,580

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1311 Post(s)
Liked 512 Times in 392 Posts
I'm not sure how anyone is supposed to tell if you took the pics from front OR rear and left OR right and on the tread pics, what angle.
They are too close to tell where the other bike parts are.

Back out a little ways.
Bill Kapaun is offline  
Old 03-30-18, 07:43 PM
  #10  
Eggman84
Senior Member
 
Join Date: Nov 2016
Location: SoCal
Posts: 487

Bikes: 2014 Bruce Gordon Rock&Road, 1995 Santana Visa Tandem, 1990 Trek 520, 2012 Surly LHT

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 210 Post(s)
Likes: 0
Liked 42 Times in 35 Posts
Originally Posted by cpper View Post
Alright, I think there's some confusion in this thread
Look at the pics in the first post, the tires are in the same position in both pics.
As you can see in the first pic, the front arrow points to the left on both tires. However, in the second pic, which is taken from 90° to the left, the treads are clearly reversed. That means that the front<-->rear marker vs. tread pattern is reversed on one tire.
Conti designs the tires to rotate in the OPPOSITE direction for the front wheel as compared to the rear wheel. What you say "marker vs. tread pattern is reversed' is by DESIGN. Fietsbob provided a clear explanation why in post #4 above. There should be no confusion unless you think a multi-billion dollar company does not know how to label their tires. Of course you can mount them any way you want or buy tires where the vendor doesn't specify a direction because the tread pattern is symmetric.
Eggman84 is offline  
Old 03-31-18, 06:51 AM
  #11  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
Originally Posted by Bill Kapaun View Post
I'm not sure how anyone is supposed to tell if you took the pics from front OR rear and left OR right and on the tread pics, what angle.
They are too close to tell where the other bike parts are.

Back out a little ways.
The pics are taken from the front of the bike, I removed the back wheel and put it next to the front one. In the left side of the second pic you can see one leg of the fork(with ROCK from Rockshox being visible). Currently I can't take other pics.

Originally Posted by Eggman84 View Post
Conti designs the tires to rotate in the OPPOSITE direction for the front wheel as compared to the rear wheel. What you say "marker vs. tread pattern is reversed' is by DESIGN [...]
That dosn't make any sense, unless the 2.4" is considered a front tire by default, and the 2.2" a back tire.
As previously said, there is no front or rear version of the tire. The only difference is the width 2.4" vs 2.2".
cpper is offline  
Old 03-31-18, 12:14 PM
  #12  
Sy Reene
Advocatus Diaboli
 
Sy Reene's Avatar
 
Join Date: Feb 2015
Location: Wherever I am
Posts: 6,784

Bikes: Merlin Cyrene, Nashbar steel CX

Mentioned: 11 Post(s)
Tagged: 1 Thread(s)
Quoted: 3540 Post(s)
Liked 729 Times in 496 Posts
Originally Posted by cpper View Post
The pics are taken from the front of the bike, I removed the back wheel and put it next to the front one. In the left side of the second pic you can see one leg of the fork(with ROCK from Rockshox being visible). Currently I can't take other pics.



That dosn't make any sense, unless the 2.4" is considered a front tire by default, and the 2.2" a back tire.
As previously said, there is no front or rear version of the tire. The only difference is the width 2.4" vs 2.2".
Unless you're misreading Conti's sidewall diagram which might be telling you which direction to face the tire depending on whether you're mounting it on the "front" or "rear" wheel?

Last edited by Sy Reene; 03-31-18 at 02:41 PM.
Sy Reene is offline  
Old 03-31-18, 09:35 PM
  #13  
GrainBrain
Senior Member
 
GrainBrain's Avatar
 
Join Date: Aug 2017
Location: Central Io-way
Posts: 1,864

Bikes: LeMond Zurich, Giant Talon 29er

Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 990 Post(s)
Liked 283 Times in 212 Posts
I don't understand other posters confusion on the pictures, the tires are lined up, with the sidewalls both clearly showing the "front <---> back" diagrams and indicating the two tires are oriented the same way. But, the tread patterns don't match up.

All those markings are put in place at the factory, using a replaceble insert, so it is possible that the tire is a factory defect. I'd take both to a LBS and compare with new stock, then send Conti a message about it.

No performance penalty, except you have to figure out which direction the tread should go, and can't rely on the easy label.
GrainBrain is offline  
Old 03-31-18, 10:00 PM
  #14  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 14,751

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2859 Post(s)
Liked 1,083 Times in 770 Posts
So this thread treads (sorry, bad intentional pun) on the question of how much tread direction really matters. I venture it matters more as the surface is more and more deformable. I've seen many tires mounted "backwards", then remounted them correctly and don't remember anyone coming back to say "wow what a difference".


It would be interesting to find out the OP was running one (or both) tires reversed in rotation from what Conti intends them to be. Then if after "correcting this" the op rode the bike what his thoughts are.


Last thing I'll say for now is about tire molding/making. For one tire to be miss labeled also means that there are very likely many tires from the same production batch that are also miss done. Anyone else head of this miss labeling on this tire before? Andy
Andrew R Stewart is offline  
Old 03-31-18, 10:58 PM
  #15  
Eggman84
Senior Member
 
Join Date: Nov 2016
Location: SoCal
Posts: 487

Bikes: 2014 Bruce Gordon Rock&Road, 1995 Santana Visa Tandem, 1990 Trek 520, 2012 Surly LHT

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 210 Post(s)
Likes: 0
Liked 42 Times in 35 Posts
Re-looking at your pictures, and assuming you rotated both tires the same direction between Pic #1 and #2 (like you say in a later post), then the treads are "reversed" between teh 2.4 and 2.2 tire. I guess this is a question for Continental because it doesn't look like you are getting a definitive answer here. My guess is that its marked that way because it really doesn't matter which way the tire rotates? Hope you find the answer as nothing worse than having a question and getting no answer (or believable answer). Let us know what the tire designers say.
Eggman84 is offline  
Old 04-01-18, 05:17 AM
  #16  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
Originally Posted by GrainBrain View Post
I don't understand other posters confusion on the pictures, the tires are lined up, with the sidewalls both clearly showing the "front <---> back" diagrams and indicating the two tires are oriented the same way. But, the tread patterns don't match up.

All those markings are put in place at the factory, using a replaceble insert, so it is possible that the tire is a factory defect. I'd take both to a LBS and compare with new stock, then send Conti a message about it.

No performance penalty, except you have to figure out which direction the tread should go, and can't rely on the easy label.

Thanks a lot for clarifying up, I was just giving up trying to explain. English is not my native language, I didn't know how to say it clearer.


Originally Posted by Andrew R Stewart View Post
[...] It would be interesting to find out the OP was running one (or both) tires reversed in rotation from what Conti intends them to be. Then if after "correcting this" the op rode the bike what his thoughts are. [...]
Since I got the tires, I rode the back tire to match the tread pattern of the front one(and therefore with the arrows pointing wrong). When I noticed the issue, I rode about a week with the back tire reversed, but could not tell a difference to be honest.

My brother rides a 2.4" TK on his front wheel, and the arrows point like on my 2.4" TK. I don't know much about tread patterns but I think this is the "correct" direction, looking at how the treads make a 'V' shape.
cpper is offline  
Old 04-01-18, 07:10 AM
  #17  
u235
Senior Member
 
u235's Avatar
 
Join Date: Mar 2017
Posts: 1,185
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 435 Post(s)
Liked 127 Times in 82 Posts
You're 2.2 looks labeled wrong if I am following everything. Labeling confusion aside..

The theory behind a rear tire having different mounting options is better leading edge braking but mainly grip at the expense of ideal rolling resistance and wear. If the tread block is square and flat on one end and angled and tapered on the other... The square part facing forward when looking down on the tire is a "better" or alternate position on the rear. In the case of a Trail King, it is tapered more in one direction (clearly visible in your first 2.2 picture) and it is a V like you describe. The V opening facing forward looking the top of the tire is the suggested alternate position for the rear.. What is better and the amount of sacrifice of speed/rolling and tread life compared to braking and traction bite is relative.

That being said. I have 27.5 2.2 Trail King (Protection version). The are labeled correctly and made in Germany. I don't have mine currently mounted as I'm trying something else now but I mounted the rear tire the same as I mount the front.

Last edited by u235; 04-01-18 at 07:47 AM.
u235 is offline  
Old 04-01-18, 08:46 AM
  #18  
Crankycrank
Senior Member
 
Join Date: Jan 2009
Location: San Diego, CA
Posts: 2,086
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 377 Post(s)
Liked 242 Times in 187 Posts
Why not contact Continental? They may have an explanation or would like to know if a tire has been mislabeled. https://www.continental-tires.com/bicycle/contact
Crankycrank is offline  
Old 04-03-18, 01:49 PM
  #19  
cpper
Senior Member
Thread Starter
 
Join Date: Jul 2015
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 1 Time in 1 Post
I have, two days, no answer yet.
cpper is offline  
Old 08-28-18, 01:07 PM
  #20  
acorn54
Senior Member
 
Join Date: Feb 2005
Posts: 351
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Likes: 0
Liked 1 Time in 1 Post
i just got a conti trail king for my bike. however i see in the picture above, shows "made in china", so i wouldn't be surprised if there is some goof up (sorry i am not pc) the trail king i got says "handmade in germany". the instructions that came with my trail king said to install tire, oriented so that the tread arrow direction is facing towards the front of the bike, with the roll of the tire when in motion. when ordering there was no option for front or rear tires, i don't think that enters into the equation. just call your friendly neighborhood bike store and ask one of their bike mechanics if you get no response from continental tire company, or you need further clarification.
acorn54 is offline  
Old 08-28-18, 01:21 PM
  #21  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,599

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,310 Times in 823 Posts
Originally Posted by fietsbob View Post
rear gabs dirt for traction, front is oriented for braking...
it's just common sense I applied..
fietsbob is offline  
Old 08-28-18, 01:39 PM
  #22  
acorn54
Senior Member
 
Join Date: Feb 2005
Posts: 351
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Likes: 0
Liked 1 Time in 1 Post
all i know is that if the knobbys form an an indian arrowhead shape they are suppose to be pointing FORWARD, whether they are on the front or rear. this is to keep rolling resistance to a minimum. i am not a dirt road enthusiast though. so you may apply what you deem is best. i just ride on streets, with alot of potholes and flat making paraphelnalia, lying in the streets and need uber tough tires.
acorn54 is offline  
Old 08-28-18, 06:29 PM
  #23  
trailangel
Senior Member
 
trailangel's Avatar
 
Join Date: Feb 2014
Location: Pasadena, CA
Posts: 4,595

Bikes: Schwinn Varsity

Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1759 Post(s)
Liked 514 Times in 305 Posts
Handmade in China
trailangel is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
downtown
Mountain Biking
19
08-31-13 10:56 AM
qr409tz8
Mountain Biking
2
09-04-12 02:51 PM
3speed
Mountain Biking
7
04-16-12 12:13 AM
Riprorin
Mountain Biking
9
08-20-11 10:46 AM
Pedro S
Mountain Biking
30
10-08-10 11:52 AM

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 Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.