I checked out putting a 18 x 4.5 3 spoke wheek into a K100 and came to the conclusion that it could not be done. However several guys here said it can be done and did it but the wheel is of center and that can be seen by aligning the center of the wheel and rear fender. They claim it is OK but having quite some experience in building frames for race bikes I know different. Am I right in that they are not center and that you need to use the paralever setup to fix that problem.