Martin Roller Chain Sprocket, Reboreable, Type C Hub, Single Strand, 40 Chain Size, 0.5" Pitch, 18 Teeth, 0.625" Bore Dia., 3.136" OD, 2.3125" Hub Dia., 0.284" Sprocket Width, 1&1/2" total width

 These are $125+ ea. at amazon.

See Amazon.com:/Martin-Roller-Sprocket-Reboreable-Single/dp/B0045JJPAS

***Please Inquire for Custom bore and Available Keying*** price increase of $15-$20

Availble:

3/4" bore



See drop down box next to "buy now"


*Buyer is responsible for custom charges from their country*
20% restocking fee on returns
All sales ship to address registered with Ebay at the time of the sale.