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  1. #1
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    is a Ritchey stem plate compatible with anything else?

    Hi there - I have a Ritchey stem. Looks a lot like this one: http://www.ritcheylogic.com/dyn_prodfamily.php?k=98293

    It's a stock part on my 2007 Jamis Aurora. I believe it's a 1 inch part.

    I want to get a Hope Vision stem plate for it. One of these: http://www.chainreactioncycles.com/M...?ModelID=15564

    They only make them for FSA, Hope, and Thompson stems. Does anybody know if one of these would be compatible with the Ritchey part?

    Thanks!

  2. #2
    Elitist Troglodyte DMF's Avatar
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    You have a choice:

    1) Believe what the manufacturer says.

    2) Get one and find out.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  3. #3
    cab horn
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    Quote Originally Posted by uoficowboy View Post
    Hi there - I have a Ritchey stem. Looks a lot like this one: http://www.ritcheylogic.com/dyn_prodfamily.php?k=98293

    It's a stock part on my 2007 Jamis Aurora. I believe it's a 1 inch part.

    I want to get a Hope Vision stem plate for it. One of these: http://www.chainreactioncycles.com/M...?ModelID=15564

    They only make them for FSA, Hope, and Thompson stems. Does anybody know if one of these would be compatible with the Ritchey part?

    Thanks!
    If i'm not mistaken, the aurora comes with 26.0 bars with the ritchey adjustable stem. That hope stem plate is listed for 31.8. If it does work, you'll at least be needing a 26.0 -> 31.8 shim on the new faceplate side. If you can understand why they make 3 different faceplates for the exact same 3.18 clamp diameter then you'll also know if it would, or would not work with your stock aurora stem. I don't. Maybe someone else on here does.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
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    Quote Originally Posted by operator View Post
    If i'm not mistaken, the aurora comes with 26.0 bars with the ritchey adjustable stem. That hope stem plate is listed for 31.8. If it does work, you'll at least be needing a 26.0 -> 31.8 shim on the new faceplate side. If you can understand why they make 3 different faceplates for the exact same 3.18 clamp diameter then you'll also know if it would, or would not work with your stock aurora stem. I don't. Maybe someone else on here does.
    Hi - on that page they list both 31.8 and 25.4mm bars - so I'm assuming I want the 25.4mm ones...

    I'm assuming the differences between the manufacturers is hole placement? I have no idea though...

  5. #5
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    Quote Originally Posted by DMF View Post
    You have a choice:

    1) Believe what the manufacturer says.

    2) Get one and find out.
    But which would I buy? They have plates for three different manufacturers...

    I'm thinking I might stop buy a local shop and see if I can do a comparison there. Not sure how happy they'll be to help being that they probably don't sell the part...

  6. #6
    headtube. zzyzx_xyzzy's Avatar
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    Hole placement and size. Don't put a 25.4 faceplace on a 26.0 bar, you'll damage the bar.

  7. #7
    cab horn
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    Quote Originally Posted by uoficowboy View Post
    Hi - on that page they list both 31.8 and 25.4mm bars - so I'm assuming I want the 25.4mm ones...

    I'm assuming the differences between the manufacturers is hole placement? I have no idea though...
    No, I specifically said 31.8 because you cannot use the 25.4 on a 26.0 bar.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  8. #8
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    Quote Originally Posted by operator View Post
    No, I specifically said 31.8 because you cannot use the 25.4 on a 26.0 bar.
    Wow - I had assumed the 25.4 vs 26 thing was some rounding thing or something. It's insane that they'd make two sizes so close to each other. Is there a good way to confirm which I have? Do I just measure the diameter at the point that the stem connects to the handlebars?

  9. #9
    cab horn
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    Quote Originally Posted by uoficowboy View Post
    Wow - I had assumed the 25.4 vs 26 thing was some rounding thing or something. It's insane that they'd make two sizes so close to each other. Is there a good way to confirm which I have? Do I just measure the diameter at the point that the stem connects to the handlebars?
    We carry the specific model you're riding - money back gaurantee it's 26.0 unless someone has swapped out the stock parts. Measure the clamp area of the handlebar if you want to make sure yourself - with a set of good calipers.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  10. #10
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    Quote Originally Posted by uoficowboy View Post
    Wow - I had assumed the 25.4 vs 26 thing was some rounding thing or something. It's insane that they'd make two sizes so close to each other. Is there a good way to confirm which I have? Do I just measure the diameter at the point that the stem connects to the handlebars?
    Yes that's how you'd measure it, but you'll need a measuring caliper and know how to use it to get an accurate measurement if your question is really between 25.4 and 26.0 (that's less than 1/32 inch). I don't believe you'd be able to tell the difference by eyeballing it with a ruler.

    But the difference between 26.0 and 31.8 is obvious.

    As for why.... I think it may be that 25.4, being a MTB standard was established in the US because it's exactly 1 inch. I have no idea why the road bike standard was/is 26.0.

    As for 31.8 (which is actually 31.75 and is sometimes called 31.7), that's exactly 1 1/4 inch.

  11. #11
    Senior Member DannoXYZ's Avatar
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    Quote Originally Posted by Camilo View Post
    s for why.... I think it may be that 25.4, being a MTB standard was established in the US because it's exactly 1 inch. I have no idea why the road bike standard was/is 26.0.
    The 26.0+ size was used on European bikes for the longest time. Only low-end road bikes in the U.S. used 25.4mm and typically only low-end bars like SR came in 25.4mm. The nicer bars and stems like Nitto, 3T, Cinelli used 26.0 and some others like Modolo used 26.6.

  12. #12
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    Quote Originally Posted by operator View Post
    We carry the specific model you're riding - money back gaurantee it's 26.0 unless someone has swapped out the stock parts. Measure the clamp area of the handlebar if you want to make sure yourself - with a set of good calipers.
    Hi - I checked today and it measures at 25.95. I then called up Hope (and man was their website hard to find... www.hopetech.com for anybody looking) and they confirmed that they don't make a 26mm stem plate and also they were fairly sure that the Ritchey stem would not be compatible with any of them.

    I then called up Ritchey (who's number was quite well hidden) and they told me that they were positive that none of those stem plates would work. So damn. I think I'm screwed.

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