Weight: From 750g

Enduro 6806/29 LLB ABEC-3 Radial Bearing (C3 Clearance) - 29 x 42 x 7mm -

an extender

6mm diameter and need to replace your air cartridge then this is what you need

Quadlock iPhone Bike Case - Black - 16 6.1" PLP|Colour Weight: From 750gQuad Lock Cases feature their secure locking mechanism compatible with all twist, lock mounts, impact resistant edge to edge cover, and protective lining. With a tough, polycarbonate core and impact absorbing TPU edge to edge outer shell, you can be confident that your iPhone will be protected every day. The slim profile and soft touch material make it perfect for everyday use. Quad Lock MAG Cases are thinner and flatter with a customisable MAG Ring.