There can be a two week wait for this item. 

Designed to stop bicycles with a weight of 130kgs 

an upgrade to the IM80 Roller Brake from what was the Nexus line. 

- With cable adjustment bolt, spacer and cable nipple
- Rollerbrake Diameter: 150 mm
- Color: silver
- Material: Aluminum
- Diameter nut: 7.2 mm
- Weight: approximately 640 grams