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  1. #1
    mtbr member
    Join Date
    Apr 2013

    Stem Spacers..replace?

    I recently removed my old Control Tech Stem and handlebar. I have replaced them with a Raceface bar and a Truvativ stem. When I went to install the new stem, I don't have enough spacers on the tube. My question is, do I replace all of the spacers with new ones or do I just get enough to make the new stem work? (mix and match with the old). Do I just get aluminum or should I get carbon ones? I searched the forum and found tons of posts on how many but not really anything related to my questions. I posted a few pics for your review....Thanks for your help.
    Looking forward to riding.....

  2. #2
    reuse the old and add new, place them either above or below the new stem, looks like 10mm.

  3. #3
    mtbr member
    Reputation: Gasp4Air's Avatar
    Join Date
    Jun 2009
    Your new stem is apparently a bit shorter than the old one. Just add spacer(s) so the stem or top spacers extend about 3mm above the top of the steerer tube. Aluminum spacers are fine. Your lbs will likely have some, or you can order them in specific sizes or in sets. Standard width is 1 1/8", and heights are in millimeters.

    If the amount you have to make up is not equal to the difference in stem heights, check to make sure your headset bearings and top assembly are arranged correctly. BTW, stem height = the length of the stem section that slips onto the steerer tube.
    Use it, use it, use it while you still have it.

  4. #4
    mtbr member
    Join Date
    Nov 2011
    As for carbon, I got a set that includes 5, 10, 15, & 20mm for about $5 from eBay direct from China. They look like these:

    1 1 8" Carbon Headset Mountain Road Bike Cycling Stem Spacer 3 5 10 15 20 Mm | eBay

    My stock ones were very lightweight aluminum to begin with, so weight savings was minimal. For 30 mm of spacers I went from 22g to 17g. Looks cool tho!

  5. #5
    mtbr member
    Join Date
    Apr 2013
    Great. Thanks for the info. I am going to go to the lbs and see if they can help me out. I think I'll stick with the aluminum spacers.
    Looking forward to riding.....

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