Not compatible with the Racktime carrier of Stromer ST2 bicycles. Clampit can be quickly mounted on any Racktime carrier without tools and securely holds whatever you want, whether it's a jacket or pants. At the same time, it is compatible with all other accessories. This means that even with the spring flap mounted, you can additionally snap on a Racktime basket or a Racktime bag using the Snapit adapter. This is suitable for all Shine models, Standit, Addit, Tourit, Foldit, and Topit, for example.