SURGE Big Dog 26-Inch Fat Bike 17″ Frame

Conquer challenging terrain with the SURGE Big Dog Hydraulic Fat Bike, engineered for riders who demand exceptional traction, stability and performance. Whether you’re riding sandy beaches, muddy trails, rocky paths or gravel roads, this rugged fat bike is designed to handle it all with confidence.

Built around a durable yet lightweight 26-inch T6 alloy disc frame, the Big Dog offers outstanding strength while maintaining responsive handling. The Surge rigid steel fork enhances durability and precise steering, making it ideal for demanding off-road adventures.

The Shimano 24-speed drivetrain provides a wide gear range for effortless climbing, fast cruising and confident riding across varied terrain. Featuring Shimano SL-M315 Rapidfire shifters, Shimano FD-TY500 front derailleur, Shimano RD-M310 rear derailleur, and an 8-speed Shimano 12-32T cassette, gear changes remain smooth and reliable wherever your ride takes you.

Stopping power comes from Shimano BR-MT200 hydraulic disc brakes, delivering responsive braking performance and excellent control in both wet and dry conditions.

Its oversized 26″ x 4.0 fat tyres, mounted on durable Surge Race Tech 26″ x 3.0 alloy rims, provide outstanding grip, flotation and shock absorption over loose, uneven and technical terrain. Premium Surge Race Tech alloy components, including the handlebar, stem and seatpost, complete this capable and stylish fat bike.

Finished in an aggressive Black, Red and Silver colour scheme, the SURGE Big Dog is built for riders who refuse to be limited by the trail ahead.

Key Features

• Lightweight and durable 26″ T6 alloy disc frame
• Shimano 24-speed drivetrain
• Shimano BR-MT200 hydraulic disc brakes
• Massive 26″ × 4.0 fat tyres for maximum grip and stability
• Surge rigid steel fork for strength and precise handling
• Shimano Rapidfire SL-M315 shifters
• Shimano FD-TY500 front derailleur
• Shimano RD-M310 rear derailleur
• Surge Race Tech alloy cockpit and wheelset
• Perfect for sand, mud, snow, gravel and technical trails

Specifications

Ideal For

• Beach riding
• Sand and dune trails
• Forest and mountain trails
• Gravel roads
• Mud and loose terrain
• Adventure cycling
• Weekend trail riding
• Outdoor enthusiasts

Why Choose the SURGE Big Dog Hydraulic Fat Bike?

The SURGE Big Dog Hydraulic Fat Bike is designed for riders who want to explore beyond traditional trails. Combining a lightweight T6 alloy frame, dependable Shimano 24-speed drivetrain and powerful Shimano hydraulic disc brakes with oversized 26″ × 4.0 fat tyres, it delivers exceptional grip, comfort and confidence on virtually any surface. Whether you’re riding across sand, mud, gravel or rugged trails, the Big Dog offers the durability, control and performance needed for every adventure.