Behind the brake lever is a clevis pin above that by a rubber boot you will find the adfuster
Bend you leg you bloody cripple On our gen 2s there is a adjuster,bolt to extend,retract on the back of the peg pivot,,unless that's just on my giles rearsets,Just looked at a picture of easytests bike on "what did you do to your bike today" dated 19th june and it looks like on the rear of the brake pedal is a rising adjuster rod,like the gearshifter ,should be easy,,you may too have to adjust the rear brake light switch to match
How on earth do I get to the bottom nut on the ad(f)uster?
That's the two obvious ones lift the boot up and there's a 8mm from memory