Can the E-14 Solo be fitted to my old SPEEDHUB?

Yes: the E-14 Solo fits every SPEEDHUB ever made, whatever its year, for dropout widths from 135 to 197 mm. When retrofitted, the battery goes on the outside of the frame.

Retrofitting an existing SPEEDHUB

The E-14 Solo’s biggest promise is that you do not need a new bike for it. Your existing SPEEDHUB — whether this year’s or twenty years old — can get electronic shifting, and the gearbox, wheel, chain or belt all stay.

Electronic actuator on the SPEEDHUB

What changes on the bike?

Part	When retrofitting
Actuation on the hub	electronic unit instead of the mechanical one
Control on the bar	Rohloff Trigger (flat bar) or TRP Hywire Brifter (drop bar)
Battery	mounted externally on the frame; charged over USB-C
Hub, wheel, chain or belt	stay

What do we check first?

the hub’s version and condition — on a hub that has gone years without a service, the fitting is a good moment for maintenance too;
the dropout width (135–197 mm) and axle type;
where the battery fits, and how the cable can run along the frame;
the handlebar and where the control unit goes.

Frequently asked questions

Can the E-14 Solo be fitted to my old SPEEDHUB?: Yes: the E-14 Solo fits every SPEEDHUB ever made, whatever its year, for dropout widths from 135 to 197 mm. When retrofitted, the battery goes on the outside of the frame.