e*thirteen Optimus Tyre - 27.5" - Black Compound:Endurance Skratch Labs Electrolyte Booster delivers

Skratch Labs Electrolyte Booster delivers customizable electrolyte support without any added sweeteners

Fluid compatibility: Designed for use with Maxima Mineral Oil only

Disc: 6-hole (P

Rims: Cannondale

e*thirteen Optimus Tyre - 27.5" - Black Compound:Endurance Skratch Labs Electrolyte Booster deliversThe Optimus 2. 4" is designed to deliver confidence inspiring trail traction with lower roll resistance at XC Down Country weights. The 2. 4'' high volume design promises the comfort of burlier trail tires and the same ability to run lower air pressures, but a tread and casing configuration that targets maximum rolling efficiency. The Optimus features e*thirteen's Endurance compound, with a firm base layer and center knobs, and softer medium tack