The Michelin StarCross 6 Medium Soft front tire is designed for motocross and off-road motorcycles operating on medium-soft terrain. This 90/100-21 tire features a 57M rating and is engineered to deliver predictable handling, confident cornering, and dependable traction across changing track conditions. Michelin manufactures this tire for riders who require responsive front-end performance and consistent control during aggressive riding.
Michelin Silica Technology helps maintain tread block integrity, supporting strong traction and durability as the tire wears. Compared with the previous generation, this technology provides up to 19% more traction when worn and up to 11% more durability, based on Michelin internal testing. The adaptive tread design provides up to 16% more traction when new, helping the tire perform effectively from the first ride through extended use.
Fitment: The Michelin StarCross 6 Medium Soft is intended for compatible motocross and off-road motorcycles that require a 90/100-21 front tire. Confirm the motorcycle manufacturer’s recommended tire size, load rating, speed rating, wheel specifications, and terrain application before installation. Part Number 86686 identifies this Michelin tire for ordering and application verification.
Performance results may vary based on motorcycle setup, rider technique, terrain, weather, tire pressure, and maintenance. Michelin’s traction comparison is based on internal testing conducted in 2021 in Jonquières, France, on a hard track using a 2019 KTM 450 EXC fitted with a worn 110/90-19 Michelin StarCross 6 Medium Soft compared with a worn Michelin StarCross 5 Soft rear tire.
Features:
- Size: 90/100-21 front tire
- Model: StarCross 6 Medium Soft
- Brand: Michelin
- Manufacturer: Michelin
- Vendor Part Number: 86686
- Service Description: 57M rating for compatible motocross and off-road applications
- Terrain Application: Designed for medium-soft terrain
- Technology: Michelin Silica Technology helps preserve tread block integrity and traction as the tire wears
- Traction: Adaptive tread design provides up to 16% more traction when new based on Michelin testing
- Durability: Michelin Silica Technology provides up to 11% more durability based on Michelin testing