Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Velocommuter Commando Sirrus Rider's Avatar
    Join Date
    Nov 2007
    Location
    Houston, Texas
    My Bikes
    '88 Specialized Sirrus, '89 Alpine Monitor Pass, two '70 Raligh Twenties, '07 Schwinn Town & Country Trike, '07 Specialized Sirrus Hybrid
    Posts
    2,558
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Mixed tire sizes on the same bike

    Anyone running mixed tire sizes on the same bike? I'm currently having a fender rubbing issue on my hybridized Alpine MTB. I just replaced my 26 X 1.5 tires with 26 X 1.85 Michelin Citys. I love the plush ride; however, these new Michelin fill the front fender with only a hair's worth of clearance to spare at the front of the fender and I can hear the fender make contact when under load. These tires are only available in 26 X 1.85 and 26 X 1.4 and I'm wondering if I went to the smaller size on the front if I would have any handling issues. I suppose I could also notch the fender for more fork leg clearance, but I don't want to compromise the strength of the fender.
    Riding 19 Years of Specialized Sirrus Tradition.
    Live in Houston? Come to http://bicyclecommutehouston.blogspot.com/
    1988 Specialized Sirrus, 1989 Alpine Monitor Pass MTB, 2007 Specialized Sirrus 700C hybrid, 2007 Schwinn Town & Country trike, 1970 "Resto-Improved" Raleigh 20, 1970 "WIP" Raleigh 20, and 1980 "WIP" Schwinn Town & Country trike

  2. #2
    Senior Member
    Join Date
    Oct 2009
    Location
    Santa Cruz, CA
    My Bikes
    2011 Cannondale Supersix 5, heavily upgraded 2000 Trek XO-1 , 1990? Bianchi Volpe, Specialized Carve Expert 2013, 89 Trek 330 FG conversion
    Posts
    241
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sheldon brown has an article on tire sizing and has a section on mixed tire widths at: http://www.sheldonbrown.com/tires.html . Basically it'll work fine but if smooth ride is the goal large in front/small in back is more ideal.

  3. #3
    Senior Member tarwheel's Avatar
    Join Date
    May 2007
    Location
    Raleigh, NC
    My Bikes
    Waterford RST-22, Bob Jackson World Tour, Ritchey Breakaway Cross, Soma Saga, De Bernardi SL
    Posts
    6,484
    Mentioned
    17 Post(s)
    Tagged
    1 Thread(s)
    I've run smaller (narrower) tires on the front of my road bikes several times with no affect on handling. Most of your weight is over the rear wheel, so it's actually a benefit having a larger tire in back. You can also run lower air pressures in the front (and should) for the same reasons, and your bike will ride much more comfortably.

  4. #4
    Senior Member alan s's Avatar
    Join Date
    Oct 2007
    Location
    MD/DC/VA
    Posts
    3,139
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by tarwheel View Post
    I've run smaller (narrower) tires on the front of my road bikes several times with no affect on handling. Most of your weight is over the rear wheel, so it's actually a benefit having a larger tire in back. You can also run lower air pressures in the front (and should) for the same reasons, and your bike will ride much more comfortably.
    +1

    Sheldon Brown notwithstanding.

  5. #5
    I'm Carbon Curious 531phile's Avatar
    Join Date
    Aug 2005
    Location
    Earthquake Central
    My Bikes
    Enough
    Posts
    2,195
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've ran set ups like this. Really makes sense if you are carrying a load on the rear as the wider tire in the back will transfer less shock to the rims and make it last longer.

    I've had 26 x 1.25 up front and 26 x 2.0 in the back. It works out great because I got quicker handling up front where I didn't have any load and I got a plusher more shock absorbing rear end.

    sometimes it is better to use a front tire with better grip for better handling.

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  6. #6
    Steel is real, baby! frpax's Avatar
    Join Date
    Dec 2008
    Location
    Tempe, AZ
    My Bikes
    1987 Basso Gap; 1987 Specialized Sirrus; 1990 Miyata 721A
    Posts
    2,527
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    While not a "commuter" bike, I've got a mid '80s Concorede that I'm running the Continental Attack/Force combo. Attack is on the front and is 700x22 & the Force is the rear @ 700x24.

    Not much difference, but they are different size tires... It's the only bike I'm running different sizes on (out of a half dozen or so).

  7. #7
    Velocommuter Commando Sirrus Rider's Avatar
    Join Date
    Nov 2007
    Location
    Houston, Texas
    My Bikes
    '88 Specialized Sirrus, '89 Alpine Monitor Pass, two '70 Raligh Twenties, '07 Schwinn Town & Country Trike, '07 Specialized Sirrus Hybrid
    Posts
    2,558
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Solved my own problem. The light bracket had slipped down and was putting pressure on the fender. Once I pushed the bracket back up and tightened it back into place, the fender popped up.
    Riding 19 Years of Specialized Sirrus Tradition.
    Live in Houston? Come to http://bicyclecommutehouston.blogspot.com/
    1988 Specialized Sirrus, 1989 Alpine Monitor Pass MTB, 2007 Specialized Sirrus 700C hybrid, 2007 Schwinn Town & Country trike, 1970 "Resto-Improved" Raleigh 20, 1970 "WIP" Raleigh 20, and 1980 "WIP" Schwinn Town & Country trike

  8. #8
    Senior Member
    Join Date
    Mar 2010
    Posts
    919
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    28C front, 32C rear.

  9. #9
    12mph+ commuter
    Join Date
    Aug 2008
    Location
    Oak Park, IL
    Posts
    863
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by furballi View Post
    28C front, 32C rear.
    Me too.

    It's a bicycle, not precision medical equipment.

  10. #10
    Senior Member
    Join Date
    Mar 2010
    Posts
    919
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm frugal, so I want to get the most bang for my $. The cost of the Michelin City is the same, regardless of size. But the 32C has a lot more rubber, which will translate to longer wear. 28C is good for at least 9K miles at the front. 32C can reach 8K miles without jack-rabbit starts.

    BTW, there's a JensenUSA promo @ General Cycling Discussion. Buy $25 JensenUSA gift card, get $50 credit to purchase stuffs at JensenUSA. JensenUSA will pricematch. Now is a good time to check out the Michelin City at 1/2 price...$13 per tire. Less if you find another online retailer with a lower price. 700 x 28, 32, 40, and 47.

    http://www.bikeforums.net/showthread...1#post12346060

    http://www.jensonusa.com/store/produ...trip+Tire.aspx

  11. #11
    Real Men Ride Ordinaries fuzz2050's Avatar
    Join Date
    Sep 2008
    Posts
    3,649
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    lest you fret about a few measly mm, I had a 28mm tire in back, and a 50mm Big Apple in front. Only problem I encountered was all of a sudden I had a slopping top tube.

  12. #12
    Senior Member Grim's Avatar
    Join Date
    Jun 2008
    Location
    Atlanta
    My Bikes
    Cannondale T700s and a few others
    Posts
    2,992
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hell my wifes bike has a 27x1 1/8 on the back (about to be a 700x23) and a 24x 1 on the front! LOL

    Quit over thinking it.

    You cant have a signature unless it fits in this box

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •