Main Motorcycle: Bonneville T100 SMQ SE
Join Date: Dec 2014
Location: Vancouver, Canada
Other Motorcycle: 1974 Norton Commando 850
Yes the rears are not standard as I just did mine and they are 5mm allen key with the heads sitting flush to the caliper hole. One of mine was seized up and it rounded out while trying to remove. Had to drill it and hammer in an easy-out bit before it would come out. Now I'm stuck waiting for the glacial delivery at a local triumph shop for a new pin.
You might want to hit the rears/fronts with penetrating oil, propane torch heating and tapping the tool bit into the bolts to free them up. An impact driver (the type you whack with a big hammer) is also a good idea. The front cap you're having trouble with is just plastic I believe and will shred if too stuck....it's just a cap to reduce dirt build up on the real pin bolt head beneath. No biggie if you shred the cap.
2013 T100 Steve McQueen; +NH Togas; -SAI; -O2; +Breathe; +TTP#3; +Avon RoadRiders; +Iron&Resin Sidebag; +Kisan Auto-Off Indicators & BrakeLight Flasher; +MatchlessClueless LED Brake & Indicators; +LED 3000 Lumens Headlamp; +DeCosse Keyless system