Krona Renthal aluminium anti - boue 441U - 428 49 tänderRef.: RT00466A / 1075646017

Aluminium mud-resistant sprocket 441U - 428 49 teeth by Renthal

Ultralight mud-resistant sprocket designed for off-road use, machined from 7075 T6 aluminum for an excellent balance of lightness and strength. Anodization and strategic cutouts reduce weight without sacrificing durability. Optimized tooth profile for mud evacuation and reduced friction, maintaining transmission performance in muddy conditions.

Design and materials

• Precision-machined 7075 T6 aluminum for lightweight and useful strength in off-road applications.
• Surface anodization that hardens the material and limits wear while maintaining a neat finish.
• Cutouts made at strategic points to lighten the part without diminishing its mechanical strength.
• OEM reference 441U-428-49GPBK

Practicality and features

• Tooth profile designed to facilitate mud evacuation, reducing accumulation on the sprocket.
• Shaped teeth reducing friction between chain and sprocket to limit power loss in extreme conditions.

Usage and performance

• Designed for MX, SX, and enduro to provide reliable grip on muddy and technical terrains.
• Ultralight design offering weight savings, as well as improved strength and longevity in intensive use.

Examples of compatible motorcycles

• KTM 85 SX STD WHEELS 17/14 (2027 - 85 cm3)
• HUSQVARNA TC 85 STD WHEELS 17/14 (2027 - 85 cm3)
• GAS-GAS MC 85 19/16 (2027 - 85 cm3)

Complete list of compatible motorcycles available in the dedicated section below