The BDX a-arms have small holes in the a-arm tabs of about 3/8"
Engine 1: Stock GY6 170cc Engine
Fits both passenger and driver sides
allowing the rider to manually adjust the fuel mixture for easier cold starts and improved engine performance in varying conditions
and designed for a 12-inch rim
Trailmaster Blazer Go-Kart GY6 Engine, 150XRX, 150XRS, 150TBM 150cc, 175cc, 232cc Size:Engine 3: 175cc GY6 Engine with Internal Reverse and stock transmission The BDX a-arms have smallGUARANTEED FIT FOR TRAILMASTER BLAZER 150XRX, 150XRS, 150TBM GO KART. Engine comes with a one year warranty see details. This is a new GY6 150cc, 170cc, 175cc, 184cc or 232cc Internal Reverse Buggy Go Kart Engine. The 150cc, 170cc, 175cc engines are a guaranteed direct fit for your vehicle and everything bolts up identical to your original stock engine including the shifting controls. See below for the 184cc and 232cc engines. GET A MORE POWERFUL GY6