How do I know if my frame uses PF41?

Measure the inner diameter of your bottom bracket shell. PF41 has a 41 mm inner diameter and is typically 86.5 mm wide. Common on cyclocross frames and some Trek road bikes.

Can I use a threaded adaptor with PF41?

Yes — products like the Wheels Manufacturing PF41 threaded adaptor allow you to run a standard BSA threaded BB in a PF41 shell, which can eliminate creaking issues entirely.

Shimano

Shimano SM-BB71-41A Pressfit Bottom Bracket

Name: Shimano SM-BB71-41A Pressfit Bottom Bracket
Brand: Shimano
SKU: ISMBB7141A
Price: 1660.00 INR
Availability: InStock
Author: InstaSport Editorial

₹1660.00

Description

SAINT Press-Fit Bottom Bracket 89.5/92 mm shell width Compatible with SAINT cranks, the SAINT bottom bracket is offered in 89.5/92 and 104.5/107mm widths. SPECIFICATION MODEL NO SM-BB71-41A SERIES SAINT M820 Series Average weight 71 g Press-Fit bottom bracket shell width (mm)_89.5 ✔ Press-Fit bottom