hey guys I'm having a tough time with my brakes on my tomos sprint. I put some older tomos wheels on the bike and installed new brake shoes from treatland on it and they just aren't big enough to make good contact. I really don't know why as I'm pretty sure i have the biggest option 105mm diameter and 20mm pads. is there something bigger that i just haven't seen? or are the rims i have just so worn that they won't take new brakes anymore? I have the adjusters all the way tight and I tightened the line the best i can. Nothing is working. any help with this would be greatly appreciated.