pirelli mt-43 trials tire..DOT yes!

Discussion in 'Thumpers' started by robodave, Oct 22, 2008.

  1. GlennR

    GlennR Playin' in the Fire

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    Rider_wv,

    Thanks for the your response. You're riding the same bike in the same kind of terrain as I am, that's as close to having a riding twin as I can hope to find.

    I'll order a pair of the mt-43's tomorrow.
    #61
  2. Rider_WV

    Rider_WV Long timer

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    Stick with a knobby up front! I like the scorpion pro(dot) for ds and a s12 for pure dirt with a xcms a close second. We have too much moisture here in the east to run a trials up front. To be fair I run a wr250r. My bud just picked up a wr450 and he will be running the mt43 on the rear and a scorpion pro up front.
    #62
  3. JTucker

    JTucker Long timer

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    Yes I will be running that combo, I have an scorpion pro on my xr650r now and have had an IRC TR1 on the back of it. Great combo. The only knobby I have run that has held up and impressed me was a Mitas C-20, good luck finding one in the states.
    #63
  4. oremike

    oremike Motorcyclest

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    I'm running the Metzler Uni-Cross on the front of my XR-L and when I finish off the T-63 Michelin will be running the MT-43 on the rear. The Mt-43 front didn't look like it would dig into the gravel in the corners like I like so that's why I'm trying the Uni-Cross.
    #64
  5. GlennR

    GlennR Playin' in the Fire

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    Ordered it today. :thumb
    #65
  6. Tripndrag

    Tripndrag Tripndrag

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    Metz Uni on the front of my prev XR 650 and now my KTM 625 sxc. Metz Uni is DOT approved, great price, great tread life and has felt great on the road, gravel, trail and real technical stuff. The front trials didn't work well for me at all. The rocky river beds and roots were to much for a tire that soft. Even with max air pressure it was just to soft for my taste. I was bashing my rim and didn't want to ruin it. It was fine at slower speeds but if a root or rock snuck up on you it didn't feel good. It was also the first front tire I ever had a flat on. The knob just works better up front I think, doesn't make gravel seem as slick, no problems with rocks or roots and feels fine on the road.
    #66
  7. duanew1

    duanew1 In my Pajama pants

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    <!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--> Here is the problem that I have with the MT-43. I was on a bike with one and during a turn to an entrance ramp to a highway, the rear felt like it tucked under and stepped out on me. I occasionally do road riding so I need some good road manners from my knobbies. I really liked the previous T63 for its road manners.

    I am just going to throw this out there. I now have a Shinko SR241 on the rear and I really like it. It is shorter than the MT-43 which may be an advantage to some, but I think that it is still taller than most knobbies. I really like the traction that it gives off road. It seemed to tuck a little bit in the turns, but not any where as much as the MT-43. The profile is much rounder then the MT-43 which I think really helps with road manners. It is also the easies tire that I have ever mounted even with the rim lock. There are no good pics of the SR241 on the internet so I will post one. I tried to show the profile of the tire as well as how tall the tire is.




    [​IMG]

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    #67
  8. cognugget

    cognugget n00b

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    I use the MT43
    [​IMG]
    #68
  9. bradrh

    bradrh Been here awhile

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    Do you have the 4.0-18 sr241? Can you take a diameter measurement on the sr241 for us? I got this link from a shinko rep: http://shinkotire.co.kr/02product/sub01_detail.asp?pcode=AA00070060, for tire sizes. It doesn't list the 4.0, but extrapolating I come up with about 26 in (660 mm) for diameter, which is about the same size as stock, 655, and smaller than the 4.1 shinko 244 (676 mm), and much smaller than the mt43, 700 mm.
    #69
  10. PeteN95

    PeteN95 Long timer

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    FYI Shinko has a new radial trials tire, the Trail Pro 255, which comes in 18 and 19" sizes for the rear!

    [​IMG]
    #70
  11. duanew1

    duanew1 In my Pajama pants

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    I heard that the 255 is very soft and will melt on the pavement.
    #71
  12. duanew1

    duanew1 In my Pajama pants

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    Yes I have the 4.0-18 SR241. I is weird that they do not have the 4.0 on the chart. By my best measurement is about 26 3/8 diameter which is approx 270 mm. This is mounted and with about 12 psi in it.
    #72
  13. Foot dragger

    Foot dragger singletracker

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    I run the DOT Pirelli on my 530 at about 13lbs for general bombing around,works great lasts longer then any knobby.

    On my 200XCW Im running a Dunlop Trials tire with Tubliss at 5psi.
    Much like magic for climbing steep gnarly stuff,for mud/sand the lower pressure helps the tire flex and clean out,Ive had it work decent even in snow. Smooooth ride in rocks and lets the whole bike track straighter.
    #73
  14. Foot dragger

    Foot dragger singletracker

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    If its not DOT all the Trials tires will melt away at speed especially on pavement. They're dirtbike tires.
    #74
  15. Foot dragger

    Foot dragger singletracker

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    As a long time flattracker I figured out how to make a trials tire work on slick gravel roads,.....Come in real fast,do all braking while bike is upright,trials tires seem to stop great when straight up and down,then lean it way over to slide it and get it pointed where you want it to go,then snap the bike upright and pin it.
    That dang trails tire will hook up like velcro and shoot out of the corner going fast.Has to be in upright position.

    Its how Speedway guys get their drives coming off a corner also,bike is vertical.

    Ive had guys fall over bang right on their elbow trying to outstop or outcorner me using this technique.
    Wait till the absolute very last second,drop anchor,get it turned and pin it.

    With a knobby I would just slide and slide all the way around,takes more energy and I think its slower.
    #75
  16. duanew1

    duanew1 In my Pajama pants

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    #76
  17. Indy Unlimited

    Indy Unlimited Long timer

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    I air up to 30 psi and no issues going down the highway. then air down when you get to the trail.
    #77
  18. Standup Rider

    Standup Rider Deacon

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    Just some thoughts about Trials tire in general. I've ridden Trials for years and obviously used Trials tires, my observations are:
    I acknowledge they provide amazing traction, but they do it by putting a Very large footprint on the ground, and they do that by running very low pressures-under 5 psi in many cases. (this means softer sidewalls as well). But let's look at the rest of the equation.
    Trials bikes are very light -200 lbs is a tank- and the riders MUST learn how to deal with the possible consequences of low tire pressure which are:
    Squirmy tracking (get used to it) and a very low tolerance for tire or tube damage. So how does one mitigate that fact? First with their light weight and low speed torque it's relatively easy to loft the front wheel at lower speeds so it's taken out of the tire damage equation, however the rear wheel needs another remedy and that remedy is learning how to 'unweight ' the rear wheel thereby reducing the impact deformation. The degree of unweighting is dependent on the amount of weight on the Rr wheel, the riders ability to unweight himself, as well as the timing of that action. Lastly trials tires aren't good in mud, not much is.
    Now look at a typical non-trials bike; they're heavier and don't have the gearing to loft the front carefully at low speeds so they will probably hit the rock/log/ledge with the rear at a higher speed which makes unweighting less valuable and makes the unweighting timing harder. If one then looks at Dual Sports-it get lworse- and with loaded adventure bikes- the situation is untenable. Your best defense for tire protection is heavier tires and tubes, more pressure, and lowered speeds.
    #78
  19. Standup Rider

    Standup Rider Deacon

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    Just one last thought . . trials pattern tires are mandated for trials just because they reduce traction and create more of a challenge to the riders. There have even been suggestions that they mandate an even less aggressive tread design for safety reasons.
    Lee
    #79
  20. Foot dragger

    Foot dragger singletracker

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    Someone has been kidding you big time,a good radial Trials tire will hook up on stuff a knobby will only spin and smoke on.

    Trials tires are how ever easier on the trail,when they do spin a little they arent as likely to dig a trench. Then they dont tend to spin as much in the 1st place.
    #80