DID 520ERT3 G-120 RB MX Race Drive Chain - Gold Category_Hard Parts 57 percent combed ring spun

57 percent combed ring spun cotton 38 percent polyester 5 percent spandex

There are optional headers for improved torque and power in mid and high rev range

When combined with either Slip-On Line exhaust

which enable the mounting of additional bags using Trekker Straps

DID 520ERT3 G-120 RB MX Race Drive Chain - Gold Category_Hard Parts 57 percent combed ring spunDID 520ERT3 G 120 RB MX Race Drive Chain High performance, lightweight, low friction chains designed exclusively for racing Pins for ER chains are put through a special patented heat treatment process that produces a 1. 5 times harder than conventional carbon heat treating Provides the highest wear resistance, tensile strength and impact resistance available ER chain used by top motocross Supercross OEM works teams