More than just a chainguide, the SRS Chain Retention System set the new standard for downhill racers when it was introduced in 2002. Now legendary for its performance, durability, and low maintenance, the SRS is the #1 choice of top pro mechanics, pro racers, and amateur racers alike.

More than just a chainguide, the SRS Chain Retention System set the new standard for downhill racers when it was introduced in 2002.
Model Single-Ring-Security Wide recommended for 9+" travel frames or dropped chainstays

The STS was developed to provide high strength impact capability for street and trail riders who frequently and intentionally smash into immovable objects. With its 36T capacity, the STS has become the favorite of aggressive riders everywhere.