Junior 5/16" Bottom Bracket Set
Small Shell
Complete with both frame cups & set of 5/16" caged bearings
1 fixed cone, 1 adjustable cone, washers & lock nut
7 bearings per cage
Standard size for Junior bikes that use a solid 1 piece crank
Frame cup shell size 43mm
Approx outside diameter of bearing cages 37.5mm
If in any doubt please ask
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