HI John, Yes we work on Bertin bicycles. In fact, I could have assembled and sold that bike many years ago. RC Hallett's World Champion Bicycles was the distributor for the line back in the mid seventies to the mid eighties, I was employed there from 74-84. Bring your bike in, we can service whatever it needs and make it nice again.
Yes they do I've never seen them turn any make or model away.
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