e*thirteen Optimus Tyre - 29" - Black Casing:XC Head height: 5 mm

Head height: 5 mm

The 4th edition of the Big Blue Book of Bicycle Repair is up-to-date with the latest information

Bottom Bracket Shell Width: 73mm

Replaceable pin (part # CTP)

2mm and 31

e*thirteen Optimus Tyre - 29" - Black Casing:XC Head height: 5 mmThe 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