SuperProx 13 teeth Output sprocketRef : SUP00495A / PP20213

13-Tooth Output Sprocket by SuperProx

Output sprocket made from cemented steel designed for 428 pitch transmission, suitable for both off-road and road use. Reinforced design for increased longevity and tooth durability under wear conditions. Grooves and lightening holes engineered for off-road applications without compromising strength.

Design and Materials

• SCM-435 cemented steel providing high wear resistance to extend the sprocket's lifespan
• Reinforced core structure to maintain tooth strength even under intensive use
• Optimised grooves and lightening holes for off-road use to limit mud accumulation and facilitate maintenance

Fit and Cut

• 428 pitch for precise compatibility with 428 chain systems
• 13 teeth defining the gear ratio and final engine behaviour
• Standard version allowing direct replacement on compatible transmissions

Benefits

• OEM Reference CST-277:13.2
• Manufactured by SUPERSPROX, expertise in sprocket production since 1959

Examples of Compatible Motorcycles

• HONDA CRF 125 F BIG WHEELS 16/19 125 (2026)
• FB MONDIAL SMX 125 MOTARD CBS E5+ 125 (2025)
• APRILIA TUONO 125 4T ABS E5+ 125 (2025)

Complete list of compatible motorcycles available in the dedicated section below