Install ISIS on Mountain Bikes

Video Transcript

"And now I'm going to show you how to reinstall an ISIS crank arm. So your first and biggest ally is, of course, some grease, which is probably most effective. Just take a dab of grease, put it on your finger, and then you just work it into the recesses in the spline. That just makes sure that we're going to have a good, solid connection with minimal creaking. Also going to put a little bit of grease here on the bolt for the same reason and also, so I'm able to get this bolt down a couple months down the road the next time I have to work on the bike. So now, throw it back on. Check to make sure that your crank arms are parallel because if they're not parallel, your friends will make fun of you and you probably won't be as efficient pedaling down the trail as you could be. So make sure you screw it back in the right way on this side. You turn it to the right. As you start to feel more pinching like I did there, you want to move away from the ball end to the flush end so that you don't round anything out. And basically, you tighten these down until they bottom out because there's a taper on the crank arm spline. Tighten it down until you're bottomed. And there's a proper torque specification for this as well, and if you want to spend $200 to buy a torque wrench, you can do that, but basically, just don't overdo it. Got a little bit of grease that's popped out the back of the crank arm. Going to take my friendly rag and get rid of that just to reduce some buildup in the future. That's pulling and reinstalling an ISIS crank arm."