The RockShox DebonAir+ Upgrade Kit puts the DebonAir+ air spring and ButterCups into a ZEB fork. This kit sets travel at 150 mm.

What it's for

Use it to update an older ZEB to the current air spring, or to change your fork's travel to 150 mm.

How it works

DebonAir+: an aluminum piston and tuned positive and negative air chambers. RockShox says it gives a soft feel on small bumps, more support through the travel, and a higher ride height.

ButterCups: rubber pucks on the spring shaft that block about 20% of high frequency trail chatter and add about 4 mm of vertical compliance.

Compatibility

• Fits: RockShox ZEB A1 and newer (2021 and newer)
• Travel: 150 mm
• How to check yours: the model code is on the fork's serial label

Setup and installation

• Follow RockShox's DebonAir upgrade and travel change service manual
• Suspension service is technical work. OMG's bike shop can do it for you

In the box

• DebonAir+ air spring assembly
• Seal head
• ButterCups

Specs

• Travel: 150 mm
• Model: FS-UPK-DBP-A1
• Part number: 00.4318.066.004