Ive been tinkering with this old fuji bike for the last couple weeks. Yesterday it was finally nice enough to go for a test ride. 2 things i noticed immediately were the front and rear wheels felt off. The front quick close on the front doesnt seem to want to close tightly and lock, any idea what could cause this? and second my rear wheel felt off balance, so when i took a closer look i found that on one side there appears to be a chain tensioner? but on the other side there is nothing just a regular drop out. i took the little tensioner thing off got the rear wheel lined up straight and it works fine. Is there supposed to be 1 of these on each side? and also i noticed shifting was slightly off after i took the tensioner off, i guess thats normal?