The shifters were very likely from the factory. This dates to around '89/90 and is of course a Cyclocross bike. It would make an excellent 'all rounder' or Gravel Grinder.
I know Toronto is hot market so while I would try and haggle I think the price seems OK. I womder why the seller has 150 in the title but then ask 230 for it with a free used $40 pump? $150 is good but I would pass if there is any hijinks about it being 230.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk