Review on Bike Handlebar End Caps - KEYWELL Aluminum Bar End Plugs, Perfect For Cyclists On Road And Mountain Bikes, BMX, MTB, And Fixies - Includes 2 Count by Khalil Hopp

These handlebar ends meet the intended use for capping off the handlebar openings. They are designed to be pushed,(1) into each handlebar opening then secured with the allen wrench included with every order. Don't over tighten. I would use some steelwool in each handlebar opening,or sandpaper, before inserting handlebar caps. Run a clean rag through each cleaned handlebar before inserting new caps.Reason is the caps will set better in each end after tightening. :€)