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 110 mm. Select this Chainring spider for most Ariel Rider models. Please email firstname.lastname@example.org if you have a question as to whether or not your bike requires a Chainring Spider or for other Chainring Spider options.