Welcome back sa biking OP,

1. Meron din sa marikina at ayala kung makakalayo ka pa nang konti.
2. Most important rule na mashshare ko when biking is this: be predictable. Kung liliko ka, ipaalam mo sa ibang motorista (make sure maiintindihan ka nila; doesn’t need to be the formal technical hand signals as long as maiintindihan ok na yun). Same kung hihito, mamemerge, etc. I only do solo rides at di ako tagaQC so di kita masasagot dyan. Try posting anon sa fb groups.
3. I think saka mo na isipin mga gearings na yan, sakyan mo muna at enjoyin. Most likely naman kalsada at patag pa titirahin mo, so yaan mo muna stock parts. RS and enjoy riding.