Discover the advantages of a gravel with Mahle Motor

3T BOOST e bike - 13 KG

Experience the perfect blend of speed, control, and comfort with our cutting-edge Ultra bike. Designed for both urban and off-road adventures, it adapts seamlessly to your riding style.

Aerodynamic Design

Engineered for speed, our bike’s aerodynamic frame cuts through the wind effortlessly.

Versatile Performance

Whether on city streets or rugged trails, enjoy unmatched performance and agility.

Advanced Comfort

Ride longer with our ergonomic design that reduces fatigue and enhances comfort.

Innovative Features of the Ultra Bike

Precision Engineering

Our bike features a 75mm downtube base for optimal aerodynamics and water bottle shielding.

Enhanced Control

With a carbon flatbar option, achieve superior control and a relaxed riding position.

Unmatched Clearance

Accommodates up to 61mm tires, setting a new standard for tire clearance.

Ultra Bike Geometry Specifications

Frame Size 48

Rider Height: 145-160 cm

Stack: 520 mm

Reach: 351 mm

Road Headtube: 122 mm

Seattube Length: 436 mm

Frame Size 51

Rider Height: 157-171 cm

Stack: 542 mm

Reach: 362 mm

Road Headtube: 142 mm

Seattube Length: 463 mm

Frame Size 54

Rider Height: 168-180 cm

Stack: 564 mm

Reach: 373 mm

Road Headtube: 158 mm

Seattube Length: 490 mm

Frame Size 56

Rider Height: 176-186 cm

Stack: 584 mm

Reach: 381 mm

Road Headtube: 175 mm

Seattube Length: 518 mm

Frame Size 58

Rider Height: 183-195 cm

Stack: 604 mm

Reach: 388 mm

Road Headtube: 196 mm

Seattube Length: 549 mm

Frame Size 61

Rider Height: 192 & up cm

Stack: 632 mm

Reach: 399 mm

Road Headtube: 225 mm

Seattube Length: 576 mm

Additional Measurements

Headtube Angle: 68.5° to 72.5°

Fork Axle-Crown: 375 mm

Front Center: 597 mm to 636 mm

Rear Center: 419 mm

BB Drop: 75 mm to 79 mm

Design Highlights

Downtube Neck: 60mm for optimal airflow

Aero Cutout: Shields rear wheel for speed

Minimalist Crown: Enhanced aerodynamics

Double-Drop Chainstays: Improved clearance and stiffness

Direct-Mount Brakes: Integrated for efficiency

Innovative Design for Peak Performance

Our Ultra mountain bike is engineered with cutting-edge design elements that elevate your riding experience. The 75mm downtube base fully shields the water bottle, enhancing aerodynamics, while the 60mm downtube neck optimizes airflow from the front tire. The size-specific downtube ensures compliance and space for bottles across all sizes. Our aero cutout closely fits the rear wheel, maximizing speed, and the minimalist crown reduces weight and improves aerodynamics. With a pure-road fork length, enjoy better stiffness and steering geometry, making the Ultra feel like a road bike even on rugged terrains.

“The Ultra mountain bike has transformed my rides. Its road bike feel and superior aerodynamics make every journey exhilarating.”

Alex Johnson

Professional Cyclist

“I love the Ultra’s innovative design. The handling is precise, and the comfort is unmatched, even on the toughest trails.”

Samantha Lee

Adventure Enthusiast

“Switching to the Ultra was the best decision. Its performance on both urban and rugged paths is exceptional.”

Michael Chen

Commuter

“The Ultra’s engineering is remarkable. It feels like a road bike but handles like a pro on mountain trails.”

Emily Davis

Mountain Biker

Experience the Ultra Difference

Ready to elevate your cycling adventures? Explore our Ultra mountain bike options today. Whether you’re seeking speed on the road or control on rugged trails, the Ultra delivers unmatched performance. Visit GRAVEL BIKES.cc and join the community of riders who trust our innovative designs. Don’t miss out on the opportunity to own a bike that redefines versatility and performance. GRAVEL BIKES shipped worldwide.

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