This Chainring Spider is specifically designed to be used in conjunction with the Pegals. Chainring Spider comes with (5) Chainring bolts and (4) mounting screws. The Chainring bolt circle diameter is 130 mm. Select this Chainring spider if your Chainring has this bolt pattern. Please email email@example.com if you have a question as to whether or not your bike requires a Chainring Spider or for other Chainring Spider options.