ethirteen Optimus Tire

ethirteen Optimus Tire Info

e*thirteen Optimus Tire is engineered to deliver fast-rolling efficiency with confidence-inspiring trail traction, making it an ideal choice for XC and downcountry riders who want more capability without added weight. The 2.4” high-volume profile provides the comfort and low-pressure benefits of burlier trail tires, paired with a tread and casing design focused on speed, efficiency, and all-day performance.

At the core of the Optimus is e*thirteen’s Endurance compound, which combines a firm base layer and center knobs with slightly softer, medium-tack side knobs. This blend minimizes rolling resistance while delivering 30% longer tread life and dependable bite through corners and off-camber sections. It’s a tire designed to go farther, faster, and with less energy loss.

The tread pattern features short, tightly spaced center knobs that create an efficient rolling contact patch, improving acceleration and climbing efficiency. Alternating siping orientations enhance braking and cornering control, while more widely spaced transition knobs ensure predictable traction as you move through lean angles and help the tire shed debris. Sculpted side knobs with advanced siping and cutaways dig into loose terrain, maintaining stability and grip at higher lean angles.

Two casing options allow riders to tailor the Optimus to their terrain and riding style. The XC casing uses a supple 120 TPI single-ply construction with a tubeless insert for maximum compliance and reliable air retention. The Trail casing features a more robust 72 TPI single-ply construction with a tubeless insert and an added nylon breaker under the tread for increased puncture protection and support in rougher conditions.

Optimus Tire Specs at a Glance

• Size: 2.4”
• Compound: Endurance compound with firm center and tackier side knobs
• Rolling Focus: Low rolling resistance with trail-capable traction
• Durability: 30% longer tread wear
• Casing Options: XC (120 TPI) or Trail (72 TPI with nylon breaker)
• Tubeless Ready: Yes

Design Benefits

1. Fast & Efficient: Optimized center tread improves rolling speed and climbing.
2. Confident Cornering: Advanced side knob shaping delivers grip on loose and off-camber terrain.
3. Extended Wear Life: Endurance compound increases durability without sacrificing performance.
4. Terrain Versatility: XC and Trail casings adapt the tire to a wide range of riding styles.

Final Take

The e*thirteen Optimus Tire is built for riders who want XC-level efficiency with the confidence to push harder on real trails. With its high-volume design, fast-rolling tread, and durable Endurance compound, it’s a tire that helps you ride longer, climb easier, and finish every ride faster.