James / Katie,
7speed, you will need a hanger bracket, as from your picture, the Shimano is hangerless, meaning it fits directley too the frame to combate this, you can buy a bracket, but bear in mind, if your using trist grip of non shimano, just google the ration of your current twist, dont worry they are easy to fit, also as a tip, once you have fit the derilleur, to avoid splitting the chain, remove the rear derailleur allen key cog, chase the chianaround the new derailleur, refit the cog, good luck
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answered 1 month, 2 weeks ago
Nope, the pull ratio would be wrong and the chain too wide for the cage.
This is not a recommended fitment, as the 9 speed derailleur is too narrow for the 7speed chain. Ideally, you will need a 7/8 speed derailleur.
answered 2 years, 3 months ago