16mm 5-hole Fat Boys [2.2] Piston Set Bearings 1up white rear 10521

1up white rear 10521

In our testing

Professionally assembled in a clean environment

each Driver is now Black Oxide coated instead of Nickle Plated improving its lifespan and protecting it from scratches

16mm 5-hole Fat Boys [2.2] Piston Set Bearings 1up white rear 10521Part Number: 1505 **July 2026: This RC8B4. 1 package includes 4 pistons, the rear bevel pistons are pre drilled (3x1. 5, 2x1. 6), Fronts flats are drilled (5x1. 4) unless otherwise requested.** The Schelle Fat Boys piston lineup is built around the concept that a thicker piston will limit flow around the outside forcing oil through the valving holes. For cold weather conditions, the 2. 2mm versions are thick on the outer profile, but 2. 2 on the