Remove ISIS from a Mountain Bike

Video Transcript

"I'm going to show you how to remove the splined, ISIS style cranks now. Reasons you'd have to remove your cranks would be if the bearings were worn out in your bottom bracket. You'd know that because they would either be crunchy and not move, or your cranks would rock back and forth and side to side. That's one of the downfalls of the ISIS system is the bearings wear out pretty quickly. I'm going to show you by removing the non-drive side crank arm because the drive side crank arm on this bike has - it's got other issues that we'll get to later. First thing we want to do is we get our 8 millimeter wrench, stick it in, and push down because you're always pushing down with these ISIS cranks. And just going to rotate that until we've got the crank pulled out. You can see it's a fairly small bolt compared to some other ISIS bolts. This ISIS bolt here goes for a lighter-weight bottom bracket, so it's got a much thinner spindle for less aggressive applications. This bike's a beast. This is a 45-pound bike; this is for like a 25-pound bike. No matter what the size is, you want to use the ISIS crank puller, which has the bigger button on it to go up against the spindle. Not this one, this one. And if you go to the bike shop today and buy a crank puller, they'll probably sell you one like this no matter what type of crank you have. These little buttons are removable so you can use them on either side. That one was just a little O-ring that kept it in."