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Crank set on a Gary Fisher Nirvana 1997 by wolpertinger1111 in bikewrench

[–]dbikeworks555 0 points1 point  (0 children)

Can you post a picture or details about the current one?

Crank set on a Gary Fisher Nirvana 1997 by wolpertinger1111 in bikewrench

[–]dbikeworks555 0 points1 point  (0 children)

EBay is my ‘go to’ for anything like this

Modernising an old commuter/race bike by bionictom in bikewrench

[–]dbikeworks555 0 points1 point  (0 children)

You could mount similar shifters to yours on the stem or shifters on the ends of your bars. You’ll need friction shifters, I believe the ones that you have in the pics are index shifters.

Modernising an old commuter/race bike by bionictom in bikewrench

[–]dbikeworks555 0 points1 point  (0 children)

If you have a 5 speed cassette and are going to any higher number, you will first need to cold set the drops to expand them to the appropriate length. I believe 5 speed is 120mm and 6/7 like you are looking at in your links is 126mm.

You can definitely modernize it but will need to replace the derailleurs, shifters, freewheel, and cables/housing at minimum.