STI MX and Off-Road Heavy Duty Tubes, 110-120/90-19 (4.50/5.00-19) Royal Days INCLUDE enhancing grip and durability

enhancing grip and durability

this rear windshield comes with our FS Pro sliding window to maximize your comfort

Can be stacked with a performance ECU reflash tune to continue fine tuning your throttle feel

Roto-molded for even wall thickness

Universal strap mounting system designed for easy attachment to trunk or separately mounted luggage racks

STI MX and Off-Road Heavy Duty Tubes, 110-120/90-19 (4.50/5.00-19) Royal Days INCLUDE enhancing grip and durabilityAt 2mm thick, the Heavy Duty model is 50 percent thicker than most standard tubes on the market today. The Extreme Duty butyl rubber uses a 3mm spec, making it 30 percent beefier than most heavy duty tubes now available. The Ultra Duty tubes utilize a nearly bombproof 4mm thickness.