![]() WHY DOES MY BIKE CLICK WHEN I PEDAL? ( Don’t Immediately Blame Your Bottom Bracket in other words)Īfter many trouble-free miles you begin to hear a rhythmic click… click…. The tool set along with the correct bottom bracket (each with a 28.99 internal diameter) is a complete SRAM DUB solution. Whilst useful a dedicated lock ring spanner is not necessary, either for removal or installation. Whether bearings are contained in cups against which you tighten the cone, or housed in an external cup which screws in, holding bearings against an internal cone, a screwdriver and hammer may be the only tools you need. Cup and Cone Bottom Bracket Tools & BB Removal ![]() The boys in blue have a tool for most situations you’ll encounter, although you pay a premium price for the brand name. If you’ve got any bike tools at all, particularly a bottom bracket tool, it’ll probably be a Park Tool. (Basic tools for building a bike covered here). THE TOOLS AND HOW TO USE THEMĮach type of BB has a specific tool to fit, often several, which vary by brand. Given the range of press-fit bottom bracket designs, selecting the appropriate bottom bracket tool is most complex in this latest (final) chapter in the bottom bracket’s evolution. The bottom bracket pictured can be installed directly into a 41mm BB shell or 46mm via the adapters which are pressed in first. Press fit designs with a 41mm internal diameter in order to fit a standard 24mm integrated spindle are also available. The cone, an inwards facing curved surface, holds the bearings in place, and rotates with the crank. Loose ball bearings sit in an outward facing concave surface, the cup, which functions as a bearing race-bearings move across the surface of the race the cup is fixed to the bike frame. Cup and ConeĬup and cone bearing assemblages are the original bearing technology, and come in several configurations. You are then able to make an informed decision about which tool is most appropriate.Ī pivotal technical principle to understand is the ball bearing mediation of the the movement of surfaces in relation to each other.Įach BB design has a different approach to the way in which that mediation is managed each design requires a specific tool, further complicated through tool companies creating brand-specific product solutions. You need to know your technology and terminology in relation to the four key bottom bracket types: Cup and Cone, Cartridge, External, and Press Fit. HOW DO I KNOW WHAT BOTTOM BRACKET I HAVE? Mid- to high-end bike brands mainly use press-fit botttom brackets for which tool-designers have produced a wider variety of solutions, some which you should completely avoid using-details belowįirst up, though, if you want to know which tool you’ll need for your bike, you’ll need to know what type of bottom bracket is on your bike. There is a wide variety of tools to choose from due to the variety of threaded bottom brackets, complicated further by the various solutions that tool designers have come up with to fit each BB profile. Low-end, mass-market through to mid-end bikes use threaded bottom brackets which install into threaded bottom bracket shells. How Many Miles Does a Bottom Bracket Last? WHAT IS A BOTTOM BRACKET TOOL?Ī tool you use to remove a bottom bracket from, and/or install into, a bike’s bottom bracket shell.Īnd/or is an important distinction because bottom bracket tools normally do one or the other when it comes to press-fit bottom brackets, for example. How Do You Remove a Bottom Bracket Without a Tool? How Do I Know What Bottom Bracket I Have? ![]() Find out all you need to know to fix or maintain your bottom bracket right here, in one place.
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