Renthal 2021 KTM 300 EXC CKD BR UltraLight Rear Sprocket Orange 520-53T, Part REN224U-520-53GPOR

Renthal UltraLight Rear Chainwheels are CNC machined from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer. A combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal's light weight all aluminum rear sprockets can be found on the rear wheels of many factory race team machines.

The Renthal UltraLight Rear Chainwheel is designed for the 2021 KTM 300 EXC CKD BR and is engineered for riders who want dependable power transfer with reduced rotating weight. This orange 520-pitch rear sprocket features 53 teeth and a grooved profile tailored for precise chain engagement and consistent drivetrain performance.

CNC machined from high-strength 7075-T6 aluminum, the Renthal UltraLight sprocket is substantially lighter than a comparable steel sprocket while maintaining the strength required for demanding powersports use. Computer-aided engineering and testing help ensure accurate fitment, concentricity, and balanced load dispersion across the chain and sprocket assembly.

Renthal uses carefully developed tooth profiling to promote efficient power transfer and smooth chain operation. A hardwearing surface treatment helps protect the sprocket against wear, while the bright orange finish adds a distinctive factory-inspired appearance. The lightweight aluminum construction makes this chainwheel a practical choice for motocross, off-road, and enduro applications where drivetrain response and component durability matter.

Designed for direct application on the specified KTM model, this Renthal rear sprocket is manufactured to tight tolerances for reliable installation and long-term performance. Verify the motorcycle model, year, chain pitch, tooth count, and mounting pattern before ordering.

What's Included

• One Renthal UltraLight orange aluminum rear sprocket

Features:

• Lightweight aluminum construction: CNC machined from 7075-T6 aluminum to reduce rotating mass compared with steel sprockets.
• Precision CNC machining: Computer-engineered manufacturing supports accurate fitment, concentricity, and consistent load dispersion.
• Optimized tooth profile: Engineered tooth geometry promotes efficient power transfer and smooth chain engagement.
• Hardwearing orange finish: Surface treatment helps resist wear while providing a distinctive, race-inspired appearance.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1