R&R Cycles In-house Big-incher
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The connecting rods are purchased with undersized bores. Then R&R sizes each set of connecting rod bores to each crankpin with the bearing as a set. The rods are then installed into the pin-boring machine where the piston pin end of the rod is bored. This also reduces side-loads on the flywheel thrust washer and the sides of the cylinder liner. View Related Article
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