on the disc caliper loosen the bit where the cable pulls keep the bit it pulls still and pull the cable as tight as possible and then he should have a tight feeling lever and hopefully it shouldnt rub but if it does loosen on the bit that moves just a tiny bit
nahh its fine! this happened to me recently. i had to change my cranks the other week so if you had to change yours it should be the same thing. all i did was without taking the crank off i just put some grease on it and then ride my bike round then put some more on then it was fine after that
hope this helps
yeahh basically i have an onza pro 2010 and i took my cranks off and the freewheel and bashring, bought a new crank and still waiting for it to come but i havent been on my bike for like 1 month because of moving and stuff