Renthal 441U-428-46GPBK 85 Rear Sprocket, 46-Tooth, Black

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.

The Renthal UltraLight Rear Chainwheel is a CNC-machined aluminum rear sprocket designed for precise fitment and efficient power transfer on select 2025 85cc motocross applications. It is manufactured from 7075 T6 aluminum in Manchester, UK and features tooth profiling intended to support maximum power transfer.

Computer engineering and testing help provide accurate fitment, concentricity and load dispersion. Renthal states that this lightweight all-aluminum rear sprocket is 66% lighter than steel, while its high-strength base material and hardwearing surface treatments are designed for demanding powersports use. This version has a black finish, a 428 chain pitch and 46 teeth.

Manufacturer part number: 441U-428-46GPBK. Vendor part number: 441U-428-46GPBK. Fits 2025 Gas Gas MC 85 17/14, 2025 Gas Gas MC 85 19/16, 2025 Husqvarna TC85 17/14, 2025 Husqvarna TC85 19/16, 2025 KTM 85 SX (17/14) and 2025 KTM 85 SX (19/16).

Features:

• Brand: Renthal
• Model: UltraLight Rear Chainwheel
• Manufacturer part number: 441U-428-46GPBK
• Vendor part number: 441U-428-46GPBK
• Material: CNC-machined 7075 T6 aluminum
• Chain pitch: 428
• Tooth count: 46
• Finish: Black
• Weight advantage: 66% lighter than steel, according to Renthal
• Fitment: 2025 Gas Gas MC 85 17/14 and 19/16
• Fitment: 2025 Husqvarna TC85 17/14 and 19/16
• Fitment: 2025 KTM 85 SX 17/14 and 19/16

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1
Fitment:
2025 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