Chosen Solution
What size chain do I need for a 21 speed hybrid men’s Schwinn bike? I have no chain on bike to compare with. Owners manual doesn’t list. model 700cm discover.
Gina Dean that should be a Schwinn part number SW75248 which is a 1/2” x 3/32” chain and should work for the 7-21 speed bicycles. Of course always confirm with the vendor. Any good bicycle repair shop can of course verify this as well.
