Brompton G Line Derailleur Chain Tensioner
 
Chain tensioner for the following Brompton folding bikes:
8 speed Brompton G Line 
 
Fitting instructions:
Firstly remove the chain tensioner as follows: 
Disengage the chain tensioner to loosen the chain. 
Remove the rear wheel by removing the bolts using a 16mm Spanner
Remove the chain tensioner by removing the counter sunk screw using a 5mm Allen (hex) key 
 
Installation instructions: 
Place the chain tensioner into position on the rear frame dropout. 
Insert the counter sunk nut in the hole on the inside of the rear frame dropout. 
Screw the counter sunk screw into the counter sunk nut while holding the chain tensioner.
Then tighten to 5Nm.