these should be a strong contender

so they will fit on to a 10 or Forty series headset too

or 5050's (2010 or present) that wants or needs a service kit

Made from Hardened Alloy Tool Steel

Shimano Deore XT SL-M8130 Linkglide 11 Speed Shift Lever - 22.2mm Bar Clamp - 11 Speed Back in Stock these should be a strongLinkglide is Shimano's latest drivetrain system focussed on strength, durability and shifting smoothness. Currently available in Deore 10 speed and Deore XT 11 speed drivetrain systems, Linkglide will soon encompass a wider range of drivetrain groupsets and provide smoother and improved pedalling performance during shifting leading to less wear and slower degradation, improving performance across a broader usable lifespan of your drivetrain. The Deore