Purchased my first non-Walmart bike for commuting this spring and have been having trouble when using the higher gears. I took it to a bike shop for a tune-up when I bought it and they said it needed nothing.
The chain doesn't seem to fit well in-between gears on the last 3 gears or so and clicks in and out. I measured the chain width with a caliper and it's exactly 9mm. Previous owner said he upgraded parts but I have no clue what. Would my best bet be to just throw on a more narrow chain?
Added what he had for the listing and the cassette is a 26-13, any help is appreciated.
by PublicUrnial