Spline dimension

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Quick Learner from Wisconsin

Jul 27, 2025 9:14 pm

Is the spline for crank 11/32 or 5/16?

4 Replies

Tom from SWISCO

Jul 31, 2025 2:27 pm

I'm sorry, I'm not sure what it is you might be referring to. Are you talking about a particular SWISCO product? If so, can you give me the product code?

Quick Learner from Wisconsin

Aug 4, 2025 9:38 pm

Hi Tom - Product Code: 39-187, window dyad crank

Tom from SWISCO

Aug 5, 2025 8:00 am

Thanks for verifying! The 39-187 uses an 11/32" spline. This is a genuine Truth part, and Truth only uses 11/32".