Brompton G Line Electric Derailleur Chain Tensioner
 
This is the chain tensioner for the following Brompton folding bikes:
4 speed Brompton G Line electric 
This is not compatible with the G Line, or A, C, P or T line Brompton bicycles 
 
This chain tensioner is for the Brompton G Line electric folding bikes with 4 speeds and includes the following parts: 
The GE Derailleur Chain tensioner x 1
 
Fitting instructions:
Firstly remove the chain tensioner as follows: 
Disengage the chain tensioner to loosen the chain.
Remove the rear wheel by undoing the bolts using a 17mm Spanner
Remove the chain tensioner by removing the counter sunk screw using a 5mm Allen (hex) key