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Thread: 250R rear sprocket

  1. 03-17-2023, 10:28 AM #1
    darkstar1026's Avatar
    darkstar1026
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    250R rear sprocket

    Will an 85 take an 86 rear sprocket?
    Just wanna get this thing right
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  2. 03-17-2023, 12:46 PM #2
    oldskool83
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    NAH BRAH http://www.jtsprockets.com/catalogue/
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  3. 03-17-2023, 01:50 PM #3
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    Red Rider
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    Quote Originally Posted by darkstar1026 View Post
    Will an 85 take an 86 rear sprocket?
    Yes, but you'll need to switch to countersunk style sprocket bolts.
    Red Rider's Sand Machine Updated 07/23/14
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  4. 03-17-2023, 02:24 PM #4
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    Quote Originally Posted by Red Rider View Post
    Yes, but you'll need to switch to countersunk style sprocket bolts.
    Excellent. That's what I needed to know. I could only find Sunstar would make a direct replacement for the 85.
    What about the rear brake rotor? Are they the same between 85 and 86?
    Just wanna get this thing right
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  5. 03-17-2023, 11:08 PM #5
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    Red Rider
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    Quote Originally Posted by darkstar1026 View Post
    Excellent. That's what I needed to know. I could only find Sunstar would make a direct replacement for the 85.
    What about the rear brake rotor? Are they the same between 85 and 86?
    Yes, they are. For the sprocket bolts, get bolts that fit the '85 sprocket hub, but are countersunk. You can't use the '86 countersunk bolts, as they are a larger diameter. The bolt holes in the '86+ style sprockets will be much larger than the '85 bolts, but the countersunk holes will keep everything centered up correctly.
    Red Rider's Sand Machine Updated 07/23/14
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