CRANK PLAY GO AWAY: The Muc-Off preload ring allows you to precisely adjust the preload tension on your bottom brackets - helping to remove side-to-side play in thru-spindle bottom brackets.,PROTECTS YOUR PARTS: Effectively managing the tension on your bottom bracket using the Crank Preload Ring will help to maximise the life of your bearings as it protects against movement and slack that can cause wear over time.,SUPER DURABLE: The Muc-Off Crank Rings are precision-machined from 7075 aluminium to create a seriously tough bit of hardware that will serve you well through even the gnarliest of shreds.,COMPATIBILITY: The Preload Ring fits onto the left crank arm of any mountain, gravel or road bikes that have SRAM, RaceFace or Easton 30mm spindle cranks, or SRAM DUB 28.99mm spindles installed.,VARIETY OF COLOURS: Muc-Off rings are available in twelve different anodised colours so that you can customise your ride to your heart’s content. Keep it strictly stealthy or match your ring with your valves for a truly personalised setup!