Topeak Presta Valve Extender 90mm Black MFPN=HG1305-M It can also intelligently adapt

It can also intelligently adapt to the surrounding ambient light conditions to maintain maximum contrast and visibility

Arms flex for easy bottle insertion and removal

Magnets inset allow quick coupling and decoupling of steel inserts

Suitable for a wide range of mountain bike disciplines

Includes enough housing for full length housing runs on most 1x-equipped bikes

Topeak Presta Valve Extender 90mm Black MFPN=HG1305-M It can also intelligently adaptTopeak Presta Valve Extender 90mm Black. Provides access for Presta valves on deep section rims. Able to loosen and retighten Presta valve for better inflation and keeping valve sealed when done