Stan's Tubeless Universal+ Valve Stems - Alloy Tall 35mm Black Pair MFPN=N0AA20120O0100 Separate upper and lower headset

Separate upper and lower headset cup assemblies to mix and match

As part of the Ultegra R8000 series this brake is "pro-proven" offering advanced control in all conditions and is customizable for your racing style

5 Crown Material Aluminum Spring Adjustments Air pressure Bottomless tokens Spring Type DebonAir+ W/ButterCups Wheel Diameter 27

Contains Qty 10 each of black and silver in 60mm

Compatible with the Shimano Di2 junction box

Stan's Tubeless Universal+ Valve Stems - Alloy Tall 35mm Black Pair MFPN=N0AA20120O0100 Separate upper and lower headsetInsert compatible tubeless Presta valves with removable core Tapered elliptical stopper ensures air tight seal on all rims Self locking valve nut has a captured o ring to prevent loosening Tap Cap stays securely fastened and has a twist and pull design TECH SPECS model Universal+ alloy length 53mm color black valve presta insert compatible yes package pair