Rohloff Cable box EX – plastic (ExBox)
The Rohloff Cable box EX – plastic (8212PA, ExBox) is the plastic cable box for the external gear mech of the SPEEDHUB 500/14 – the current replacement for the earlier aluminium version, for riders who need to renew a cracked or worn cable box.
Why replace the cable box?
Made for the external gear mech. The cable box takes both shift cables straight from the twist shifter to the hub – all disc brake (DB) versions of the SPEEDHUB 500/14 use this system. 
Cable adjusters on board. Both shift cables are tensioned right at the box, so you can set the recommended free play at the shifter without extra in-line adjusters. 
Quick to swap. The cable box comes off the external transfer box on its own, so you change only the damaged part, not the whole gear mech. 
Current Rohloff version. The plastic ExBox replaces the earlier aluminium cable box.
When do you need it?
A fall on the drive side, a crash in a bike rack or simply years of use can crack or wear the cable box. A fresh ExBox restores clean, precise shifting without replacing the transfer box or the hub cables.
Who is it for?
- SPEEDHUB riders with a damaged cable box. Restore precise shifting after a fall or rack damage.
- Tourers far from a dealer. A small, light spare that gets a disc brake SPEEDHUB shifting again.
- Workshops. The genuine Rohloff replacement for the aluminium cable box.
Compatibility
| Rohloff part number | 8212PA |
|---|---|
| Fits | SPEEDHUB 500/14 with external gear mech (all DB versions) |
| Replaces | Earlier aluminium cable box |
| Does not fit | Hubs with internal gear mech |
Frequently asked questions
Does it fit my SPEEDHUB?
It fits SPEEDHUB 500/14 hubs with the external gear mech, which all disc brake (DB) versions use. Hubs with the internal gear mech use a different cable system. Send us your hub serial number or a photo if you are unsure.
Do I need to readjust the cables after fitting it?
Yes. Set the cable tension so that there is about 2 mm of free play at the twist shifter, then check that all 14 gears can be selected.
Can I replace an aluminium cable box with this one?
Yes. The plastic ExBox is the current replacement for the aluminium version.
About Rohloff
Rohloff AG is a German engineering company based in Fuldatal near Kassel. Its SPEEDHUB 500/14 is a sealed 14-speed gear hub with evenly spaced gears, built for riders who want a drivetrain that keeps working for tens of thousands of kilometres with little more than an annual oil change.
BoodaBike in Budapest is an official Rohloff service centre, trained by Rohloff, and an official European distributor of Rohloff hubs and spare parts. Every part we sell is genuine Rohloff, and we are happy to help you find the right part number for your hub.