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  1. #1
    Senior Member mtalinm's Avatar
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    widest 451 tires w/ high psi?

    currently have 1 1/8 tires on a 451 rim. they don't take the potholes nearly as well as my 1 1/2 tires did on the 406 rim, but I've switched.

    i see a 1.35 primo comet kevlar belt (same tire I have in thinner) on bikefriday, but it is lower psi. i'm a big guy so would like higher psi.

    anything else out there?
    Trek Domane 4.5 (commute/distance), Specialized Roubaix (climber), Xootr Swift (winter/travel), Trek Soho (around town)

  2. #2
    Senior Member badrad's Avatar
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    Quote Originally Posted by mtalinm View Post
    currently have 1 1/8 tires on a 451 rim. they don't take the potholes nearly as well as my 1 1/2 tires did on the 406 rim, but I've switched.

    i see a 1.35 primo comet kevlar belt (same tire I have in thinner) on bikefriday, but it is lower psi. i'm a big guy so would like higher psi.

    anything else out there?
    schwalbe kojaks (1.35) can get you up to 95 psi. depends how much higher do you want - above 100? the marathon racers are wider (1.50) but are similar to the primo comet with 85psi max.
    Last edited by badrad; 07-22-11 at 03:54 PM.

  3. #3
    Senior Member mtalinm's Avatar
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    you sure there is a 451 kojak? i thought that was only a 406.

    my schwalbe marathons go to 100psi and it is great. my primo comets are 110 but the thinness of the tire seems problematic
    Trek Domane 4.5 (commute/distance), Specialized Roubaix (climber), Xootr Swift (winter/travel), Trek Soho (around town)

  4. #4
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    The widest tire in 451 that I've seen (and used) is the 1 3/8 Primo Comet .. I liked it a lot.. Primo Comets don't get enough love .. I remember them being in both Kevlar and non-Kevlar .. a 20x1.35 Primo would be for a 406 rim..

  5. #5
    Part-time epistemologist invisiblehand's Avatar
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    Quote Originally Posted by BruceMetras View Post
    The widest tire in 451 that I've seen (and used) is the 1 3/8 Primo Comet .. I liked it a lot.. Primo Comets don't get enough love .. I remember them being in both Kevlar and non-Kevlar .. a 20x1.35 Primo would be for a 406 rim..
    I concur. One thing that I noticed about the 406 Primo Comets is that they run narrow relative to specifications. For instance 20 x 1.75" Comets are about 37 mm wide.

    Is the same true about the 451 tires?

  6. #6
    Senior Member mtalinm's Avatar
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    they sure feel that way. my 1 1/8 comets looks skinnier than the 25s on my road bike, though I'm sure it's not quite true.

    I stuck Mr. Tuffy's in there to try to toughen them up (something got through the Kevlar belt and flattened my tube...which then flattened me when I fell rounding a corner)
    Trek Domane 4.5 (commute/distance), Specialized Roubaix (climber), Xootr Swift (winter/travel), Trek Soho (around town)

  7. #7
    jur
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    I haven't seen anything wider than 1-3/8" in 451mm. I have used Intense Micro Knobby (like), Primo Comet (like), Maxxis Holy Roller (rubbish), and a few tyres in 1-1/8" width.
    My folding bike photo essays www.dekter.net/

  8. #8
    coprolite fietsbob's Avatar
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    406 is the rim with wider tyres , 451 is a go fast skinny tire wheel choice ..

    N+1 would be the choice .

    a bike built around the other wheel will offer the wider tire you seek..

    larger tire functions at a lower operating pressure ,
    because of the greater volume.

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