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user81128
V1: 29.8mm seattube v3: 27.2mm
V1: No bottle mounts
V1: First 20 had external headsets and non perforated dropouts
V1: built from gas pipe tubing. V3:True Temper
Geo of v1/3 differ slightly as in the TT of the V3 is slightly longer for each size.
Think that's it..