What kind of spindle for BMX bike?

pickle

Member
Hello,

I'm looking into buying some new cranks for my bike but I'm a little confused with how the spindle sizes work. Does it matter if I get a 19mm, 20mm, or 22mm spindle? The bike is a GT Bump that uses an American type bottom bracket if that makes a difference. Also will any American type bottom bracket kit work with any spindle of the corresponding size (any 22mm BB kit with any 22mm spindle for example)? Thanks in advance!
Hello,

I'm looking into buying some new cranks for my bike but I'm a little confused with how the spindle sizes work. Does it matter if I get a 19mm, 20mm, or 22mm spindle? Any recommendations?

The bike is a GT Bump that uses an American type bottom bracket if that makes a difference.

Also will any American type bottom bracket kit work with any spindle of the corresponding size (any 22mm BB kit with any 22mm spindle for example)? Thanks in advance!
 
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