Can't Get Enough
Join Date: Sep 1999
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Re: Flange Size - Years
The change to the 14mm bolt pattern was made DURING the production of the late 1988 Zuks. Some square vent 88.5 models have 12mm, some have 14mm. My 88.5 tintop came with 12mm and my brother's 88.5 came with 14mm bolts. Mine was produced in 03/88 and his was produced a little later. All models before 88.5 had 12mm, all after 88.5 had 14mm.
The 88.5 models all had one brake line regardless of whether they had 12mm or 14mm flanges.