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  1. #1
    WickedXP's Avatar
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    ET 137-4 vs ET 68-140 vs Riva XX2

    Wondering who is running these upgraded S/C impellers and if they are happy with the results? The 68-140 seems to be the ultimate impeller but a little on the pricier side. Thinking about upgrading but wanted more info from the guys turning these


  2. #2
    Sturm215's Avatar
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    Quote Originally Posted by WickedXP View Post
    Wondering who is running these upgraded S/C impellers and if they are happy with the results? The 68-140 seems to be the ultimate impeller but a little on the pricier side. Thinking about upgrading but wanted more info from the guys turning these
    both et chargers are great but I've seen 68-140 chew up flywheels on a few rxpx ....137 is a great all around charger with less maintenance.

  3. #3
    AtoMIC_OraNGE greenbullet's Avatar
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    Both are great chargers. I've run both and like both. The Riva xx2 is basically a 137 wheel if I'm not mistaken.

  4. #4

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    Comes down to power vs slip maintenance.. The ET137 & Riva XX2 are basically the same but different companies version of a 137mm wheel w/4mm spacer to give that extra .5lbs over the standard 137. These are great for recreation riding and the slip doesn't need to be adjusted very often (20-30hrs) if you do lake riding or minor chop. The 68-140 is going to give the most power between the 3, no question... but the slip will need to be adjusted a little more often given the same riding conditions between the two sizes - 137mm - 140mm. It comes down to power vs maintenance and what kind of water you ride. I chose a 137 wheel and went with a DCC cam instead of the 140 wheel. I do a fair amount of ocean riding so my slip would need more adjusting than a lake rider. Now I make close to same power at the 68-140 but keep the better maintenance. Its so close though so my opinion maybe different than others..

    I do enjoy hitting 83mph with 104 heat index temps and 100% humidity (current conditions).. The 137 wheels do work... Cant wait for the next Florida winter and see how much faster I get on those 60 degree days-

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  6. #5
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    The 137 +4 is the best bang for the buck currently available!

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  8. #6
    WickedXP's Avatar
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    Quote Originally Posted by BigDaddyRXP View Post
    The 137 +4 is the best bang for the buck currently available!
    Thanks for all the feedback guys! Really appreciate it

  9. #7
    Moderator Snoman's Avatar
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    Quote Originally Posted by greenbullet View Post
    Both are great chargers. I've run both and like both. The Riva xx2 is basically a 137 wheel if I'm not mistaken.

    You are correct Kevin...The older Riva X2 was a Mini Rude and now the new XX2 is revised/updated to a ET 137+4

  10. #8
    JT jpt7779's Avatar
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    I ran the ET 137+3 and loved it. I am currently running a ET 68-140 and is a significant improvement over the 137. Hang the Fuck On improvement!

    I run fresh water only and pre loaded the slip to 20 ft-lbs to settle in at 18 ft-lbs. I just checked it again for the 3rd time and it is STILL at 18ft-lbs after over 40 hours of hard usage. Ocean riding WILL require more checking of slip no matter what charger you use.

    My advise, save some money and get the ET 68-140.

  11. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Have you ever bore scoped your flywheel to check the condition of the teeth?

  12. #10
    SLASHER's Avatar
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    The mini rude is lighter = less wear and tear ...

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