Description
The ISIS Left Crank Arm (2004-present) is a direct replacement schwinn ic pro parts component designed to restore smooth, secure pedaling on compatible Schwinn indoor cycles. Built for IC Pro bikes using the ISIS bottom bracket interface, this left-side arm matches items #29a and #31a on applicable parts diagrams.
- Fits Schwinn IC Pro bikes, 2004-present, including black-frame and silver-frame production revisions.
- Matches the Left Crank Arm, ISIS shown in Schwinn IC Pro quick-reference and exploded-view parts diagrams.
- Associated with replacement part references including 80035; commonly identified as the ic pro isis left crank arm ic pro for 2004-and-later models.
- Designed to work with the corresponding hardware and related crank components referenced as items 29a and 31a.
This schwinn isis left crank arm ic pro replacement is made for bikes that use an ISIS splined spindle, helping correct wear, stripped pedal threads, impact damage, or a loose-fitting original arm. It is intended for the left/non-drive side only and should be installed with the proper crank puller and fastening hardware for best results. This is a high-quality replacement part for select Schwinn indoor cycles, offering dependable fit and function comparable to the original equipment design. Installation is usually straightforward for experienced DIY users or commercial fitness technicians.
Get your bike back in service fast with an OEM-quality replacement that installs easily and ships same day from our warehouse.



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