Who's this item for: Any riders after a lightweight 12-speed cassette with excellent shifting performance

consistent feel during cornering

2mm rotors

so you can always be sure your Strava is running

SuperB Derailleur Hanger Alignment Gauge Tool Needs Images Who's this item for: AnyA misaligned hanger is often the main culprit behind poor shifting and a tweaked hanger will make it impossible to get your drivetrain running smoothly in every gear. All it takes is a bit of a knock from a rock or log, putting your bike down the wrong way, or a crash, and suddenly your gears are all over the place. The worst thing is that the hanger often looks fine but can be juuust wonky enough to make your gears skip a little and drive you insane.