Hello guyz. I have a problem with my winter/commuter/cheap bike. It's a Bianchi flash, and it has horrizontal dropouts, also Quick realese. How can i make the wheel not to move in the dropouts when i put power on the pedals? Thank you!
Make sure the QR is a decent Shimano or Campagnolo one with the internal cam. The trick external cam ones are just not up to it. Then do it up TIGHT. If you don't get a dent in your hand when you tighten the QR it's too loose.
You can also try replacing the serrated nuts on the end of the axle, or sharpen up the serrations with a file. They need to "bite" the frame dropouts well.