Regina Chain 520 DR Extra Series Chain

Regina Chain 520 DR Extra Series Chain

When every millisecond counts and you are looking to shave rotating mass off your drag machine, stepping down to a lightweight 520 setup is one of the most effective moves you can make. The Regina 520 DR Extra Series Chain is engineered specifically for competitive drag racing applications where low friction and immediate power delivery are crucial. By skipping internal O-rings, this non-sealed chain eliminates parasitic drivetrain drag so every ounce of horsepower transfers directly to the rear tire when you drop the clutch.

Do not let the narrower 520 pitch fool you—the DR Extra is purpose-built to survive the violent launches and brutal shock loads of the drag strip. Regina utilizes high-strength alloy steel plates, oversized pins and solid bushings to resist chain stretch under sudden torque spikes. Every pin, roller and plate is shot-peened to maximize fatigue resistance, giving racers the confidence to stage hard and chase personal bests pass after pass.

Features:

• Engineered specifically to withstand the severe shock loads and rapid acceleration of competitive drag racing
• Features an ultra-efficient non-sealed roller design to eliminate parasitic drag and maximize horsepower output
• Constructed with high-strength alloy steel plates and pins to combat chain elongation
• Shot-peened plates, pins and rollers deliver exceptional fatigue resistance under aggressive launches
• Average tensile strength of 8,542 lbs
• 520 chain pitch
• Gold finish
• Clip and rivet-type master links included