Renthal 2025 KTM/Husq/GasGas 85 Rear CW Grvd Sprkt - Black - 428-46P Teeth

Renthal UltraLight Rear Chainwheels are CNC machined in Manchester, UK from 7075 T6 aluminum to extremely tight tolerance, 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. With Renthal's 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 more factory race team machines than all other competing brands combined.

Upgrade your motorcycle’s final-drive performance with the Renthal UltraLight Rear Sprocket, part number 441U-428-46GPBK. Designed for select 2025 KTM, Husqvarna, and GasGas 85cc models, this black rear sprocket combines lightweight construction with the strength and precision required for motocross and off-road riding. Its 46-tooth configuration is engineered for compatibility with a 428 chain and helps deliver reliable power transfer under demanding conditions.
Renthal manufactures UltraLight rear sprockets from high-strength 7075-T6 aluminum using CNC machining and tight production tolerances. The result is a sprocket that weighs significantly less than a comparable steel alternative while maintaining the durability needed for repeated racing use. Computer-aided engineering and testing help ensure accurate fitment, concentricity, and balanced load distribution across the drivetrain.
Feature: CNC-machined 7075-T6 aluminum construction for a strong, lightweight design. Feature: 46-tooth configuration for use with compatible 428 chain systems. Feature: Precision tooth profiling promotes efficient power transfer and smooth chain engagement. Feature: Hardwearing surface treatment helps resist wear during motocross and off-road riding. Feature: Black finish provides a clean, race-ready appearance. Feature: Engineered for precise fitment and consistent drivetrain performance.
This Renthal rear sprocket fits the 2025 GasGas MC 85 17/14, GasGas MC 85 19/16, Husqvarna TC85 17/14, Husqvarna TC85 19/16, KTM 85 SX 17/14, and KTM 85 SX 19/16. Verify your motorcycle model, wheel configuration, chain size, and required tooth count before installation. Renthal’s combination of advanced manufacturing, durable materials, and race-proven design makes the 441U-428-46GPBK a dependable replacement or performance upgrade for compatible powersports applications.

Features:

• CNC-machined 7075-T6 aluminum construction for a strong, lightweight design

• 46-tooth configuration for compatible 428 chain systems

• Precision tooth profiling promotes efficient power transfer and smooth chain engagement

• Hardwearing surface treatment helps resist wear during motocross and off-road riding

• Black finish provides a clean, race-ready appearance

• Engineered for precise fitment, concentricity, and balanced load distribution

• Fits select 2025 KTM 85 SX, Husqvarna TC85, and GasGas MC 85 models

Fitment:
Gas Gas MC 85 17/14 Base 2025
Gas Gas MC 85 19/16 Base 2025
Husqvarna TC85 17/14 Base 2025
Husqvarna TC85 19/16 Base 2025
KTM 85 SX (17/14) Base 2025
KTM 85 SX (19/16) Base 2025