BMX Chainwheel Top Hat Spacer Washer for Alloy Sprockets to 19mm BB Axle 5mm

25/28 Tooth Chain Wheel Adaptor for Alloy Chainrings 5mm
To fit 15/16" Centre Hole BMX Chainrings to 19mm Bottom Bracket Axles

5mm wide suitable for alloy chainrings
 
This spacer enables 25/28 tooth alloy front chain rings 
with a centre hole measurement of 23.8mm (15/16") 
to be fitted to 19mm bottom bracket axles

Chain wheel adaptor measurements (23.75x19x5mm)
Black steel