When you're preparing to install a bottom bracket and a crank set you need to take a breath, a step back, and consider every aspect of what you're about to undertake to ensure you're going to get the results you're expecting. In this brief video series, we show you a step-by-step installation from start to finish, beginning with the removal of the old bb, cleaning, and then frame bottom bracket shell fit evaluation.
going to swap out this stock dove bottom bracket and crank system out of this SB130 for this RaceFace one with this absolute black oval ring and of course we're going to be installing this BB92 for 30mm spindles. You're going to get a start to finish install right now no special tools required to remove one of these press-fit bottom brackets I'm going to use this drift right now all right now I'm just walking it out a little bit at a time you can see I'll swing it so you can see the gap is opening right here and I'm walking it out I'm trying to keep it even as much as possible sometimes you're going to have to have somebody come over here and brace it on this side in order to get enough power to knock it out not always but sometimes the BBInfinite module is going to be passing all the way through the bottom bracket - so you don't just want to clean the outsides where it's going to make contact where we need to put the retaining compound. You want to clean the whole thing out because there's going to be a lot of dirt in here let me just show you from the old system see all the dirt in there you don't want to just drag all that through the bottom bracket with this beautiful module you want to clean this very thoroughly you want to take paper towel and denatured alcohol or some white lightning clean street and we want to thoroughly clean these contact surfaces right here to make sure that they are perfectly clean that's not I need to keep going until this thing comes back clean on both sides commend a two-step assessment process right before you're going to install the bottom bracket the first one involves just a regular ruler or straight edge and what I do is I slide it through the bottom bracket shell and I see I'm trying to assess whether or not it's teeter-tottering on a something that's sticking up in the middle like a high spot or something like that because even when it looks like it's clear all the way through there might be a hump or something like some resin from the carbon fiber or whatever that you might need to get in way down inside here and sand it with some sandpaper so that when you're halfway through the module doesn't like crash into it and get stuck so as long as you check all the points all the way around and you can see that the ruler straight edge is touching the contact points where the module is going to make its press fit contact then you're going to be then you're good and you know that it's going to be a consistent diameter all the way through the second step in the assessment process is I use the module itself as a feeler gauge and I stick it I stick it into the frame and I like to see it go in about a good millimeter or two and then start and hang okay and then same thing on the other side it feels pretty good it wants to go in about three millimeters that's a really good sign that's that means that the press fit is probably going to be excellent and i should proceed in our next video we're going to install the bottom bracket see you then
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