1991 Schwinn High Plains- Mtbr.com
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  1. #1
    mtbr member
    Join Date
    Nov 2012

    1991 Schwinn High Plains

    Never restored a bike. Considering this. With maybe a 1x advent-x and bring up to date a smidge. Looking for inspiration and advice, and what ill need to overhaul this thing. It was my dads, id like to make it kind of a flat bar gravel bike / easy trails mtb. Any advice and help would be most appreciated. Because I dont know anything about fixing these. Hiw do I determine what bottom bracket and headset I need in order to replace them? What about a 1x ring to replace the current front chainrings, how do you know what is compatible? Thanks in advance, I am looking forward to working on this.


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  2. #2
    mtbr member
    Join Date
    Mar 2018
    I have a 91 High Plains that is my about town bike (mine was built up from a frame and spare parts)

    It seems like the crankset uses a 110bcd. But I would measure to double check. If it is a 110bcd you just need a 110bcd narrow wide chainring.

    The bb is a standard 68mm bb. You can measure the spindle length from the BB you have in there.
    Ragley Big Wig, Sunday Soundwave (BMX), 91 Schwinn High Plain (about town bike), Nashbar CXSS (on trainer)

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