I was recently fitting my friends bottom bracket as he didn’t know how to do it him self, so I thought id put a guide up on here for all those who need help fitting it! (Which I’m sure there are a few) You will need: 8mm Allen key Loads of Grease Splined BB tool Crank puller Large spanner (adjustable) Ok, here it goes… 1. Take crank arms off. Using the 8mm Allen key. Take your crank puller and apply a small amount of grease on the threads, as this will help to not strip the threads inside. Screw in the crank puller and turn clockwise. Slowly the crank will start to come off. You need to do this on both sides. 2. Now to taking out the Bottom Bracket. Start on the Non-Drive side (Which is the left side) you need to but your BB tool into the located positions. Once in make sure you hold the tool in position whilst turning it Anti-clockwise. 3. Now you need to take of the Drive side (Which is the Right side). Do exactly the same before making sure the tool doesn’t slip off. This time it you need to turn it clockwise…. 4. Once removed you need to degrease/Clean the threads make sure there’s no dirt what so ever. This is because the dirt might damage your threads. 5. Now apply LOTS of grease (This may get a little messy). Now comes to fitting your new bottom bracket. Start with the Non-Drive side cup (Left side). Screw it in Clockwise, using your fingers, as it shouldn’t be that hard. 6. Now its time for the Drive side. This needs to be screwed in Anti-Clockwise into the frame. Again using your fingers. 7. Now you need to tighten it all up (Using your BB tool and Spanner). Do each side in turn. So tighten left-side two rotations and the right-side two. As the cups get closer to the frame you will not need to turn it that much. Now check it’s all tight and flush against the frame. 8. Finally attach you crank arms. You can put a light smear of grease on the Bb axle and on the Crank bolts. Then clean it all up. Pack your tools away and enjoy a non-creaking, smooth Bb. If your Bb is creaking on your first ride this maybe because you need to 'face' your Bb shell. Any Good Bike store can do this. Hope it helps.