Lightweight Performance. Precision Shifting. Exceptional Ride Quality.

Built in-house by the team at Thame Cycles, this stunning Argon 18 Gallium Disc combines a high-performance full carbon frameset with Shimano's latest 105 12-speed mechanical groupset, creating a fantastic road bike for riders looking for speed, comfort and reliability.

The Argon 18 Gallium Disc is designed to deliver an excellent balance of stiffness, responsiveness and all-day riding comfort. Its lightweight carbon frame provides efficient power transfer when climbing or accelerating, while the refined geometry and carbon construction help deliver a smooth, confidence-inspiring ride.

Equipped with the Shimano 105 12-speed groupset, this bike offers precise, dependable gear changes and a wide range of gearing to tackle everything from fast flat roads to challenging climbs. The compact 50/34T chainset paired with an 11–34T cassette provides excellent versatility for riders exploring the rolling hills of Oxfordshire and beyond.

A dependable alloy wheelset paired with quality Continental tyres delivers a great combination of durability, grip and everyday performance. Alloy handlebars and stem complete this practical, performance-focused build.

Whether you're taking on your first sportive, joining a club ride or simply looking to upgrade your road cycling experience, this custom-built Gallium Disc delivers exceptional capability and performance.

Bike Specification

• Brand: Argon 18

• Model: Gallium Disc

• Frame: Full Carbon

• Frame Size: Small

• Groupset: Shimano 105 12-Speed Mechanical

• Chainset: Shimano 105 Compact 50/34T

• Cassette: 11–34T

• Brakes: Hydraulic Disc

• Wheelset: Alloy

• Tyres: Continental

• Handlebars: Alloy

• Stem: Alloy

• Build: Custom assembled by Thame Cycles

Why Choose This Bike?

This is not simply an off-the-shelf road bike. It has been carefully assembled by our experienced workshop team at Thame Cycles, combining a premium carbon frameset with proven Shimano components to create a capable, versatile road bike.

A fantastic opportunity to own a custom-built Argon 18 carbon road bike with the latest Shimano 105 12-speed mechanical shifting.