BOTTOM BRACKET BEARING SET - KIDS JUNIOR ADULT BMX Mountain Bike (1 PIECE CRANK)

* KIDS BOTTOM BRACKET SET
* SUITABLE FOR 1 PIECE CRANKS
* Bearing ring (outside diameter) 37mm
* Outside Cup - (where it fits into the frame) 43mm
* NOT SUITABLE FOR ADULT BMX BIKES
* CUPS, WASHER, LOCKNUT AND BEARINGS ALL INCLUDED

* JUNIOR BOTTOM BRACKET SET
* SUITABLE FOR 1 PIECE CRANKS
* Bearing ring (outside diameter) 45mm
* Outside Cup - (where it fits into the frame) 51.5mm
* SUITABLE FOR ADULT BMX BIKES
* CUPS, WASHER, LOCKNUT AND BEARINGS ALL INCLUDED