i want to fix the crank on my raleigh explore it's quite wobbly.

Adam, April 2007

cn some1 send me a vid of how to fix a loose crank for a bmx plz my email is mikey109@googlemail.com

mikey, October 2007

either replace the bearings that are in or obtain a crank cassette that is a one piece unit , as they say fit and forget sealed unit and to have it fitted for you dosn,t cost the earth.

j.d., August 2007

There is a nut on each crank that secures it to the spindle. You should be able to tighten these with a socket spanner.
If these nuts are tight then the problem lies in the bottom bracket, and means either the adjustable cup is loose, or the bearings and/or the cups have worn down.
Either way, for the time and effort involved for a novice, plus the purchase of a crank removal tool and a cup removal tool that you'll probably only ever use the once, it's probably easier to get your local shop to do it.

Big Softy, April 2007