Rennen Decimal Chainring Sprocket 4 Bolt

Rennen Decimal Chainring
This is the Rennen Decimal Chainring in 4-bolt 104bcd or 5bolt 110bcd. 104-bolt pattern chainrings are 5-millimeters thick, available in the decimal sizes shown in the options. Theyre compatible with 3/32 and 1/8 chains. Chainring bolt holes are threaded so you do not need the rear part of your chainring bolts. These are only made in color Black.