SE Bikes Gaudium 20" BMX - Red Fox - 2025

Built to Blast. Born for Big Air.

The SE Gaudium 20" is the ultimate street-and-park weapon designed for riders who go bigger, faster, and higher—and need a bike that can keep up. Whether you're ripping transition, stacking clips downtown, or launching to the moon at your local park, the Gaudium was born to fly and built to survive the aftermath.

Developed with input from the top BMX minds, this rig is loaded with pro-level features like a 100% double-butted Cr-Mo frame, Alienation rims, female-axle sealed hubs, and ultra-grippy 2.4” tires. Every detail screams performance, from the Pivotal setup to the 25-9 microdrive gearing.

🔥 Why It Hits Different

• 💪 Full Cr-Mo Construction – Strength where it counts. Lightweight where it matters.

• 🚀 Built for Boost – The double-butted frame and Alienation rims are made to handle harsh landings and hard hits

• 🧲 Sealed Female Axle Hubs – Clean looks, smoother grinds, max durability

• 🔥 25-9 Gearing – Microdrive setup for max clearance and modern style

• 🛞 2.4” Tires Front & Rear – Big-volume rubber for big tricks and even bigger grip

🛠️ Component Breakdown

Frame:
100% Cr-Mo w/ double-butted main tubes, integrated seat clamp & headtube, machined mid-BB, removable brake mounts & cable guides

Fork:
Full Cr-Mo tapered legs w/ peg clearance, 3/8" dropouts, 32mm offset

Crankset:

• SE V-Ridge 3-piece Cr-Mo cranks, 175mm

• 25T 6061 Alloy SE Sprocket

• Mid BB, sealed bearings, 19mm spindle

Pedals:
SE Nylon Fiber Platform

Drivetrain:

• Chain: KMC S1

• Rear Driver: 9T

• Gearing: 25-9 microdrive setup

Wheels & Tires:

• Front Rim: Alienation Deviant, double-wall

• Rear Rim: Alienation 440, double-wall

• Front Hub: Sealed 3/8" female axle

• Rear Hub: Sealed 14mm 4-bearing female axle

• Front Tire: Innova Mimosa 20 x 2.4"

• Rear Tire: Innova Big Slick 20 x 2.4"

Brakes:

• Caliper: Z-Star RX-935D

• Lever: Promax FS-339 hinged alloy

Cockpit:

• Bars: Cr-Mo SE Powerwing, 30" x 9"

• Stem: SE Top-Load Alloy, 50mm reach

• Grips: SE DSP w/ rubber end plugs

• Headset: FSA Orbit CE sealed integrated

Seating:

• Seat: SE Pivotal w/ padding

• Post: Lightweight nylon/fiberglass Pivotal, 25.4mm

Weight:
24.9 lbs / 11.29 kg

🎯 Best For

✅ Riders hitting serious street lines or sending big at the park
✅ BMXers looking for max strength with minimal weight
✅ Anyone who wants the cleanest, most dialed setup on the block

💬 Bottom Line:

The Gaudium isn’t just a BMX bike—it’s a launch pad. Purpose-built to send, it’s got the tech, the durability, and the style to back it all up. So line up that handrail, boost that hip, and know your setup won’t flinch.

🛹 If you’re ready to push boundaries, the 2025 SE Gaudium is ready to take you there.