Trek 850 'Antelope' frame and fork designed to use 24 inch MB wheels used but not abused effective top tube 50 cm / 19-3/4 inches center of bottom bracket to top of seat collar is 40 cm / 15-3/4 inches Accepts a 26mm diameter seat post and 1 inch threaded headset 1-1/8 front derailleur clamp diameter eyelets for fenders or racks on both fork and rear drop-outs threaded bottom bracket 68mm wide shell front fork hub spacing 100mm rear hub spacing 130mm We
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