Cult Mid BMX Bottom BracketEUR 24,95 EUR 19,95
Odyssey Euro Bottom BracketEUR 39,95
Mission Bottom bracket SpacersEUR 4,95
BMXFIX American US Bike Crank BearingEUR 4,95
Fiction Savage Mid Sealed Bottom BracketEUR 17,95
Salt Spanish BMX Bottom BracketEUR 22,95
Salt Rookie Mid Bottom BracketEUR 23,95
Stolen Revolver Mid BMX Bottom BracketEUR 21,95
Salt Plus Echo Mid BMX Bottom BracketEUR 29,95
Mission Mid BMX Bottom Bracket KitEUR 24,95 EUR 18,95
Rant Spanish Bottom BracketEUR 22,95
Stolen Mid Precision BMX Bottom BracketEUR 3,95
Fiction Savage Amer/Mid Sealed Bottom Bracket and 8 SpindleEUR 29,95
Fiend Mid BMX Bottom BracketEUR 29,95
Colony Mid Bottom BracketEUR 21,95 EUR 20,95
Eclat Mid CNC BMX Bottom BracketEUR 35,95 EUR 26,95
Stolen Minimalist Mid Sealed BMX Bottom BracketEUR 29,95
Mission Euro BMX Bottom Bracket KitEUR 44,95 EUR 40,95
Fiction American to Mid BMX Bottom bracket Conversion CupsEUR 7,95
Fiction Savage American Mid Sealed BMX Bottom BracketEUR 22,95
Kink Mid BMX Bottom BracketEUR 34,95
Federal V2 Mid Bottom BracketEUR 26,95 EUR 21,95
Stolen Revolver Spanish Sealed BMX Bottom BracketEUR 21,95
Salt Plus Echo US BMX Bottom BracketEUR 29,95
Demolition MID BMX Bottom BracketEUR 34,95 EUR 30,95
Shadow Stacked Mid Bottom BracketEUR 34,95
Merritt Mid BMX Bottom BracketEUR 34,95
Salt Plus Echo Euro BMX Bottom BracketEUR 36,95
Mission American BMX Bottom Bracket KitEUR 35,95
Mankind Epoch MID BMX Bottom BracketEUR 30,95 EUR 29,95
BMX Bottom Brackets Are the Core of Your BMX
On a BMX bike, you will find the bottom bracket installed in the frame where the crank arms meet each other. This part of the bike frame is called the bottom bracket shell. The main components are 2 bearings and spacers, and their purpose is to allow the rider to spin the pedals freely to get speed. The parts are extra strong and sturdy as they need to withstand a lot of pressure that is created by aggressive pedaling.
The Different Types of BMX Bottom Brackets
The four main types are - American bottom bracket (51 mm), mid bottom bracket (41 mm), Spanish bottom bracket (37 mm) and euro bottom bracket (35 mm threaded). They all have different sizes, and the measurements here are referring to the outer diameter of the bearing required to fit your frame.
American bottom brackets are the oldest type and have the largest diameter. They come with sealed bearings or open bearings that sit in cups. Mid bottom brackets are found on most BMX bikes these days, as they are simple to install and sit plushly in the frame. Spanish bottom brackets are small and lightweight, giving them a clean look. They are also pressed into the frame rather than threaded. Euro bottom brackets are commonly found on race BMX bikes. They are threaded into the frame with the bearings sitting in cups.
What Size Bottom Bracket Do I Need BMX?
Along with the type of bottom bracket, it’s important to have the right size bottom bracket so that it fits your crank axle. The different inner diameters of bottom brackets are 19 mm, 22 mm and 24 mm. These measurements refer to the size of the spindle that goes through the bearing. 19 mm axles are the most common, and nearly all brands have models of this size. 22 mm and 24 mm axles are thicker and stronger than the 19 mm and, in most cases, have no additional weight.
So, if you’re still unsure what bottom bracket you need, then the bottom line is to make sure that both the style and spindle size are compatible with your existing setup. For example, if your frame supports a euro bottom bracket and your cranks have a 22 mm axle, then you will need a euro 22 mm bottom bracket.
If you are also looking for a crankset to go with your new bottom bracket, then check out BMX Cranksets.