The RockShox 400 hour/2 year Service Kit is essential for maintaining your Reverb B1 (2017) dropper post. This kit includes a new, upgraded IFP, ensuring your ride remains smooth and reliable. Regular servicing with this kit helps keep your bike in top condition. To use the RockShox 400 hour/2 year Service Kit, you'll need a few tools: a post bleed tool, an oil height tool, and an IFP height tool. These tools are necessary for proper installation and maintenance. Key Features: Compatible with Reverb B1 (2017) Includes new, upgraded IFP Requires post bleed tool Needs oil height tool Uses IFP height tool Keep your RockShox Reverb performing at its best with this comprehensive service kit. Regular maintenance ensures longevity and optimal performance on every ride.