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  1. #1
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    Picked up a '11 RZ120 four

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    Attached Thumbnails Attached Thumbnails Picked up a '11 RZ120 four-untitled-1.jpg  

    Picked up a '11 RZ120 four-untitled-1a.jpg  

    Picked up a '11 RZ120 four-untitled-1aa.jpg  

    Last edited by kneejerk; 08-12-2015 at 09:53 AM.

  2. #2
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    Seriously what a lucky kid you have there

    I agree 33lbs(!) is quite heavy for an XC / endurance bike, but it's a good training for his legs!

  3. #3
    Mr. Yeco
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    Hi kneejerk

    Hello from Mexico, I have the same model but the last year 2010, my bike has a stickers that said made in usa, I would like to know if the build process change from one year or another, and I'm agree with you about the rims and the drivetrain is too heavy, I would like to know if is convenient improve the drive train and rims. And the RST works well when you adjust with low rebound and less air pressure,
    I'm sorry for my english.

  4. #4
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    Was there a reason you put the rear shock on the 120 like that.

  5. #5
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    Quote Originally Posted by gsxr1600
    Was there a reason you put the rear shock on the 120 like that.
    I think its like that to be able to access the water bottle cage. I also think it comes like that from the factory.

  6. #6
    Mr. Yeco
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    Hi Dkestar

    I have the same size, and the rear shock is in a normal position, but in the manual said that must be in the other position.
    regards

  7. #7
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    Here is mine, this is how mine was on.
    Attached Thumbnails Attached Thumbnails Picked up a '11 RZ120 four-bbg-012.jpg  


  8. #8
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    I see now, the medium and bigger frames mount it like mine, and the small are mounted the other way.

  9. #9
    Mr. Yeco
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    Hi gsxr1600, what happend if the small frame has the shock like yours bike, could it damage the frame? Because my bike has the shock like yours and is a small size

  10. #10
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    Quote Originally Posted by Yeco
    Hi gsxr1600, what happend if the small frame has the shock like yours bike, could it damage the frame? Because my bike has the shock like yours and is a small size
    Yes, if the size small has the shock turned around like my Rize (large) the barrel may (or will) pinch against the top tube during travel. I did turn the adjuster knobs to the top to make it a little easier to get to a water bottle w/o bumping them, although this made the shock fiddling a little more difficult (maybe).

  11. #11
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    Quote Originally Posted by Yeco
    Hello from Mexico, I have the same model but the last year 2010, my bike has a stickers that said made in usa, I would like to know if the build process change from one year or another, and I'm agree with you about the rims and the drivetrain is too heavy, I would like to know if is convenient improve the drive train and rims. And the RST works well when you adjust with low rebound and less air pressure,
    I'm sorry for my english.
    You can always make the bike better with lighter or better parts. It becomes a matter of how much money you want to spend. At the price of this complete bike it is on par with some frame sets available. I think the performance is good.

  12. #12
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    Quote Originally Posted by gsxr1600
    Here is mine, this is how mine was on.
    Just noticed from your picture that your chain may be too short!....... it looks to be pulling the rear derailleur to its maximum without the suspension being compressed. Most rear suspension systems will pull the chain when it travels, which will render the rear derailleur to its maximum and potentially bend or break violently.

  13. #13
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    Quote Originally Posted by kneejerk
    Just noticed from your picture that your chain may be too short!....... it looks to be pulling the rear derailleur to its maximum without the suspension being compressed. Most rear suspension systems will pull the chain when it travels, which will render the rear derailleur to its maximum and potentially bend or break violently.
    the chain looks fine

  14. #14
    Mr. Yeco
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    Quote Originally Posted by kneejerk
    Yes, if the size small has the shock turned around like my Rize (large) the barrel may (or will) pinch against the top tube during travel. I did turn the adjuster knobs to the top to make it a little easier to get to a water bottle w/o bumping them, although this made the shock fiddling a little more difficult (maybe).

    Hi Kneejerk, please see the picture, I dont know if I must change the side of the shock.
    Thank you for your reply
    Attached Thumbnails Attached Thumbnails Picked up a '11 RZ120 four-imag0054.jpg  


  15. #15
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    Quote Originally Posted by Yeco
    Hi Kneejerk, please see the picture, I dont know if I must change the side of the shock.
    Thank you for your reply
    Mount your shock the other way if your frame is a small.

  16. #16
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    Quote Originally Posted by kneejerk
    Just noticed from your picture that your chain may be too short!....... it looks to be pulling the rear derailleur to its maximum without the suspension being compressed. Most rear suspension systems will pull the chain when it travels, which will render the rear derailleur to its maximum and potentially bend or break violently.
    I shorten the chain because i have one ring up front and was gonna run two bashguards and didn't want to drop the chain, but the inner guard rubs the frame, so i put the derailleur back on for now to keep the chain from coming off, but the chain is fine like that.

  17. #17
    Mr. Yeco
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    What comments do you have about the rize?
    Regards

  18. #18
    Mr. Yeco
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    What comments do you have about the rize?
    Regards

  19. #19
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    deleted
    Attached Thumbnails Attached Thumbnails Picked up a '11 RZ120 four-trim.jpg  

    Last edited by kneejerk; 08-12-2015 at 09:54 AM.

  20. #20
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    Quote Originally Posted by Yeco
    Hi Kneejerk, please see the picture, I dont know if I must change the side of the shock.
    Thank you for your reply
    Yes, size small should have the shock turned around the other way.

  21. #21
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    Update for this: Kid is now 14yo and just over 110lbs. I've changed out the suspension to a Fox 140 up front and a Rock Shox out back, the 140 fork is only fractionally taller than the original RST120 (actually the RST120 can easily be converted to 140 internally), the Fox fork switch has cut almost a 1/2lb. off bike weight. kid is about 5'4" now and the bike is fitting good.
    Picked up a '11 RZ120 four-rz.jpg
    Last edited by kneejerk; 02-25-2014 at 06:43 PM.

  22. #22
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    pivot bearing damage

    Well, discovered a pivot bearing come apart on the top of the seat stay on 100lb. rider (kids) RZ120 yesterday. Remember that "kink" in the rear suspension I discovered at my initial assembly of the bike!... kinda makes me suspicious! Looks like I will be looking for some new bearings and some new hardware very very soon... bike out of commission for now.
    Picked up a '11 RZ120 four-4_25_14-002.jpgPicked up a '11 RZ120 four-4_25_14-003.jpg

  23. #23
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    This is a 3 yr old bike, right? That is exceptional sus bearing longevity.

    Mine did not last a year.
    '95 M2 StumpJumper FS
    '11 Cannondale RZ 120-two

  24. #24
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    I've got a 2008 140 with no such problems, yet... but, I am ordering some spare bearings... just incase the day comes sooner rather than later..
    Quote Originally Posted by Stumpjumpy View Post
    This is a 3 yr old bike, right? That is exceptional sus bearing longevity.

    Mine did not last a year.

  25. #25
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    Well, I ordered replacement hardware kits and Enduro bearings to fix this problem. Strangely the Enduro bearings are a few thousandths smaller in the outer diameter which made them slide into place rather than press fit. So, I installed them with medium strength loctite in hopes that would hold them in (time will tell). I used the Enduro bearings because they are of a higher grade with more ball bearings inside. No more "kink" noticed after installing the new bearings. Hoping this holds it for a while! I'll take it apart again as a regular check to see how it's going. I believe Cdale recommends checking the bearings every 25hrs. of use. Something I need to consider in the future and something my 2008 is definitely "due" for!

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