The Spécialités TA ONE X110 GRX single chainring embodies French excellence in the service of gravel and cyclocross. Machined 100% CNC from aerospace-grade 7075 T6 aluminum, this single chainring combines light weight, exceptional rigidity and optimal longevity to transform your drivetrain into a simplified and ultra-reliable 1x configuration. Specifically designed for Shimano GRX cranksets, it exploits the exclusive ONE concept (narrow tooth / wide tooth) guaranteeing perfect chain retention without a chain guide, even in the most extreme conditions.

Technical Highlights

• Total GRX compatibility: Specifically developed for Shimano FC-RX810 and FC-RX600 cranksets (1x and 2x versions), 110 mm BCD / 4-bolt
• Exclusive ONE technology: Narrow tooth / wide tooth alternation offering perfect chain retention without a chain keeper, even on rough terrain
• French CNC manufacturing: Design and machining 100% made in France, guaranteeing dimensional precision and premium finishing
• Aerospace 7075 T6 aluminum: High-strength alloy ensuring maximum rigidity, optimal power transfer and low weight (93 to 98 g depending on tooth count)
• 10/11/12-speed versatility: Compatible with all modern Shimano drivetrains, guaranteed longevity for your future upgrades
• Wide range of tooth counts: Available from 36 to 46 teeth to adapt your gearing to your riding style (gravel, cyclocross, bikepacking, cycle touring)

French Design and Craftsmanship

Entirely designed and manufactured in France by Spécialités TA, this chainring embodies 75 years of expertise in machining premium cycling components. The use of 7075 T6 aluminum, commonly used in aerospace, guarantees an exceptional strength-to-weight ratio. 100% CNC machining ensures micrometric precision of tooth profiles, essential for smooth chain movement and even wear.

Versatility and 2x to 1x Conversion

Beyond its native use as a single chainring, the ONE X110 GRX allows you to easily convert a double chainring drivetrain to a 1x configuration, simplifying your groupset and improving off-road reliability. This upgrade is done without changing the crankset, with immediate benefits in reduced maintenance and optimized obstacle clearance.

Finish and Aesthetics

The matte black finish offers perfect aesthetic integration with GRX cranksets and emphasizes the performance character of this component. The clean and functional design reflects the technical DNA of Spécialités TA, without superfluous embellishments.

Available Variants

• 36 teeth: EAN 3662458017817 / Ref. PL481103C9-36 — Ideal for hilly routes and technical gravel, favoring frequent accelerations
• 38 teeth: EAN 3662458017855 / Ref. PL481103C9-38 — Versatile gravel/cyclocross compromise, perfect balance between speed and climbing ability
• 40 teeth: EAN 3662458017961 / Ref. PL481103C9-40 — Intermediate configuration for rolling gravel and mixed cycle touring
• 42 teeth: EAN 3662458017978 / Ref. PL481103C9-42 — Fast-paced orientation and bikepacking on less demanding terrain
• 44 teeth: Ref. PL481103C9-44 — High speed for fast gravel and mixed road/gravel use
• 46 teeth: Ref. PL481103C9-46 — Maximum gearing for sport gravel and fast sections on asphalt