Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-03-10, 12:20 PM   #1
Raleigh71
Senior Member
Thread Starter
 
Join Date: Jul 2005
Bikes:
Posts: 282
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Question about tire mounting with a directional tread.

My tires have a directional tread (see photo).

I'm assuming the tire gets mounted so the tread lines point in the direction of travel as shown?
Attached Images
File Type: jpg TIRE MOUNTING.jpg (70.6 KB, 16 views)

Last edited by Raleigh71; 01-03-10 at 12:22 PM. Reason: Spelling error
Raleigh71 is offline   Reply With Quote
Old 01-03-10, 12:30 PM   #2
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,070
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Yes, anytime there is any semblance of a v shape to the tread, it's usually recommended (by the tire manufacturer) that the tire be mounted so that the point of the v goes forward. In reality, on road tires, it doesn't make much or any difference, although with a more pronounced tread pattern such as the one you have there, I would definitely go with the v facing forward. I also think of it kind of like mounting the tire with the label lining up with the valve stem, i.e., mounting the tire in the recommended direction shows attention to detail.

With mountain bike tires, which of course have more elaborate and pronounced tread patterns than road tires, you'll sometimes see one direction arrow on the tire labeled for the "speed" direction, and one for "traction." Sometimes, a mfr. will recommend, with the same tire, one direction for front tire mounting and one for rear mounting.
well biked is offline   Reply With Quote
Old 01-03-10, 12:39 PM   #3
daven1986
Senior Member
 
Join Date: Feb 2008
Location: UK
Bikes:
Posts: 2,324
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Above is correct. I had to swear today as I just spent about 20 minutes wrestling a schwalbe marathon winter onto my new wheel, only to then look and realise the direction was wrong!!
daven1986 is offline   Reply With Quote
Old 01-03-10, 01:04 PM   #4
thompsonpost
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
It points to the rotation of the tire as you move forward, regardless of where you are looking at the arrow.

Last edited by thompsonpost; 01-03-10 at 01:09 PM.
  Reply With Quote
Old 01-03-10, 01:15 PM   #5
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,262
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
If you were just riding on paved roads you would not need any patterned tread... the irregularities in pavement provide a rough enough surface to provide all the traction you need as the tyre will conform to these as you roll along.

With many directional tyres (treaded) they are designed to roll faster when mounted in one direction and offer a little more traction when they are mounted in reverse... some tyres are also front and rear specific to further maximize performance.
Sixty Fiver is offline   Reply With Quote
Old 01-03-10, 01:28 PM   #6
Ouzo 4 Twozo
Junior Member
 
Join Date: Jan 2009
Bikes:
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
In the winter I reverse my rear tire's tread for snow riding. Honestly, I think it's because I like the sound more... Extra traction is nice, too.

OP, your picture shows things correctly as far as the arrow pointing in the correcting intended direction of tread rotation.
Ouzo 4 Twozo is offline   Reply With Quote
Old 01-03-10, 01:38 PM   #7
Mondoman
Senior Member
 
Join Date: Apr 2008
Location: A Latvian in Seattle
Bikes:
Posts: 1,020
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Along the lines of SF's post, I usually think about traction when mounting my *mountain bike* tires. I'm most concerned about the front tire for braking and the rear for acceleration, so I mount the tires in the orientations with most traction for braking up front and most traction for acceleration in back; these are normally opposite orientations.
Here's what Sheldon had to say: http://www.sheldonbrown.com/tires.html#direction
Mondoman is offline   Reply With Quote
Old 01-03-10, 08:12 PM   #8
AndrewP
Senior Member
 
Join Date: Sep 2001
Location: Montreal
Bikes: Peugeot Hybrid, Minelli Hybrid
Posts: 6,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The V tread is to prevent aqua planing. When the tire rolls onto water, the water is squeezed forward and to the sides by the V pattern. Since you have to be going 200 mph on narrow bike tires to aquaplane with smooth tires, the direction you mount the tires has no practical effect. However I always mount my tires with the V pattern pointing to the front on the top.
AndrewP is offline   Reply With Quote
Old 01-03-10, 08:49 PM   #9
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Bikes:
Posts: 11,600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I thought it was 176mph? I guess it depends upon the pressure and tyre-width.
DannoXYZ is offline   Reply With Quote
Old 01-04-10, 10:26 AM   #10
Grand Bois
Senior Member
 
Grand Bois's Avatar
 
Join Date: Mar 2005
Location: Pinole, CA, USA
Bikes:
Posts: 16,626
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
I'll bet there is a "direction of rotation" indicator somewhere on the sidewall. It can be hard to spot.
Grand Bois is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 07:57 AM.