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  1. #1
    Senior Member
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    replacement fork for 1" headset bikes

    Anybody tried the Dimension replacement forks in general? How about the 700 cross fork for disc brakes with 26" wheels? How is the tire clearance?

    What about suspension forks? Is it worth it to build up an RST 1" from scratch? It looks like there aren't many other 1" options...
    1985 Nishiki Century/198? Miyata 610/19?? Omega 12/198? Univega Alpina Pro/198? Unknown MTB/1991 Koga-Miyata Randonneur Alloy/1996 GT Rage/199? DB "Frankencross"

  2. #2
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    A company called RST sells 1" steerer tube fork/shocks.
    They sell the shock without the tube actually and you chose
    what tube you want for it..they have 1" tubes availiable.

    Also another upgrade is from a company called Dimension.
    They sell a 1" to 1-1/8" quill adapter that fits inside the 1"
    steerer tube but allows for the better 1-1/8" stems to be
    used. Hope this helps.

  3. #3
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    Quote Originally Posted by mega69 View Post
    A company called RST sells 1" steerer tube fork/shocks.
    They sell the shock without the tube actually and you chose
    what tube you want for it..they have 1" tubes availiable.
    I was looking for actual reviews and applications, but thanks for the info. Have you tried building an RST from scratch? Do they perform well? I'll try another forum for reviews of the Dimension cross fork...
    1985 Nishiki Century/198? Miyata 610/19?? Omega 12/198? Univega Alpina Pro/198? Unknown MTB/1991 Koga-Miyata Randonneur Alloy/1996 GT Rage/199? DB "Frankencross"

  4. #4
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    No; i havent used an RST suspension fork. Most everything today are 1-1/8" with forks.
    I just recalled reading elsewhere about RST selling basic suspension forks without
    steerer tubes and the customer having the option to pick out the steerer tube to fit
    ones needs...SR Suntour sells forks still with 1" steerer tubes as well. They arent professional
    grade shocks but they are 100mm of travel and comparable to what comes on most lower
    end bikes today from local hobby shops in the $400-$500.00 range but with a 1" steerer tube
    ; not 1-1/8".

  5. #5
    Bike Junkie roccobike's Avatar
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    I've made the swap from rigid to sus on a MTB with a 1" head tube. It didn't work out that well. You have to determine if the frame you're working with was designed for a sus fork. I made the swap on a 1988 Nishiki Ariel (not the raised chainstay frame). The fork, a Suntour, worked out well but the fork changed some critical dimensions resulting in instability. When riding on asphault, the bike would no longer hold a line, requiring constantly holding on to the bars. I now use this bike only on gravel rails to trails where turning/handling is not an issue.
    Not all frames react this way. I also have a 1992 Nishiki Ariel, with a 1 1/8 head converted from a rigid fork. It steers fine, very predictable. As for finding forks, you can sometimes find a sus fork with a 1" steer tube, used on ebay.
    As for RST, their spring forks are very low entry level, but they are sturdy, just lack any rebound control and can get spongy.
    BTW, be careful with how much travel on the fork you use. I only used a 40mm on the 88 Nishiki. These bikes were not meant for 100mm travel forks.
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