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This Schwinn bottom bracket is a square shaft replacement part for the crank arms of Schwinn Airdyne Evolution Pro/Comp bike models with a manufacturer date of 1999-current.
It fits a frame with a 1.328" (33.73mm) diameter hole, making it a precise option for the specified compatible bikes and frame opening.
Explore more drivetrain parts in the Cycling > Parts & Components > Drivetrain category, or compare it with Bottom Bracket | Square Tapered Shaft.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.