NS Bikes Zircus 26-Inch 2025 Bike

The zircus is the perfect tool for mastering pumptrack skills, learning bunnyhops, manuals, 180’s and other moves that are all in the abc of mountain bike riding! The zircus has the same lightweight and strong aluminum frame that is used in the movement range and is built using affordable but high-quality parts making this bike perfect for playing in the city, off-road or on pump tracks. The bike has a compact drivetrain that saves weight and gives it that ‘pro’ look. An optional derailleur hanger is available so you can convert this bike from single speed to gears if needed.

Features

Powerful Brakes

Tektro MD-M300 Ariesa rear disc brake

Tough and Light Alloy Frame

"Pro Dirt" geometry.

NS Bikes Components

NS Bikes and Octane One aftermarket components in unique finishes.

Specifications

Frame and Fork

• Frame: NS Bikes 6061-T6 custom formed and butted tubes
• Sizes: One Size
• Fork: RST Dirt T, 100 mm travel, 9 mm axle, 1 1/8" steerer tube

Drivetrain

• Crankset: Samox 170 mm, 26 Tooth chainring
• Bottom Bracket: FSA, square taper
• Chain: PYC-510H, Single Speed

Brakes

• Front Brake: Alhonga V-Brake
• Rear Brake: Tektro MD-M300 Aries, 160 mm rotor
• Brake Levers: Tektro

Wheels

• Rims: Jalco DBX 26" / NS Fundamental 26", 32h
• Spokes: Spokes with 14 mm nipples
• Front Hub: NS 100 x 9 mm bolt-on
• Rear Hub: NS 135 x 10 mm single speed, 10 Tooth driver
• Tires: Kenda Small Block 8, 26 x 2.1"

Cockpit

• Headset: GW integrated tapered IS42/IS52, sealed bearings
• Handlebar: NS 31.8 mm, 740 mm wide, 30 mm rise
• Stem: NS Drop 31.8, 50 mm, +10° angle
• Grips: NS Hold Fast Unlocked

Seat and Pedals

• Seatpost: Octane One fat seat-post combo
• Saddle: Octane One fat seat-post combo
• Pedals: NS Nylon