WATERPROOF SEAL TOP TUBE META
Sealing foam, which is to be positioned inside the top tube just in front of the rear shock, to prevent water from prematurely damaging the headset bearings.
2015 -2016: META AM V4, META TR V4
2017 - 2019: META AM V4.2, META TR V4.2
2019: META AM 29, META TR 29