Renthal 5240-520-49GPRD Twinring 520 49-Tooth Rear Sprocket Red

The Renthal 5240-520-49GPRD Twinring Rear Sprocket is a premium 49-tooth, 520-pitch chainwheel engineered for off-road and enduro riders who demand maximum durability without sacrificing weight. Developed over five years with input from Renthal's factory race teams, the Twinring redefines what a rear sprocket can endure.

Dual-Material Twinring Construction:

• Inner Ring: Ultralight 7075 T6 aluminum — the same high-strength alloy used in Renthal's standard Ultralight chainwheels — keeps overall weight to a minimum
• Outer Ring: Electroless nickel-coated hardened steel provides extreme wear resistance where the chain makes contact
• The steel outer ring is heated to 200°C and interference-fitted over the aluminum inner, creating a permanent bond for the life of the sprocket
• Flat socket head screws add additional strength during side impacts and eliminate contact with the chain guide

Key Features:

• Precision CNC machined in the UK to extremely tight tolerances for accurate fit, concentricity, and reliable power transfer
• Unique flat-face design keeps the Twinring as narrow as a standard chainwheel
• Self-cleaning mud grooves between every tooth on both sides prevent dirt buildup and reduce wear
• 15-step anodizing process provides a durable, corrosion-resistant red finish
• Outlasts a standard all-aluminum sprocket by up to 3 times, yet significantly lighter than an all-steel sprocket
• Chain Pitch: 520
• Tooth Count: 49T
• Color: Red
• Position: Rear
• Country of Origin: United Kingdom

The Renthal Twinring is the choice of factory off-road and enduro race teams worldwide — built to handle the harshest conditions while delivering consistent, efficient power transfer ride after ride.