Disc brake rotor for road, hybrid and gravel use, designed for consistent stopping and lower noise, Clarks Cycle Systems A1 Centrelock Disc Brake Rotor. Confident braking on long descents and mixed-surface rides brings clear peace of mind. Does the fitment and robustness meet the expectations of serious riders?
⚡ At a Glance
- • Braking Performance: Reduced heat transfer, lower noise and consistent braking
- • Best for: Road, hybrid and gravel riders who need dependable stopping power
- • Not ideal for: Wheelsets and hubs that are not centrelock compatible
High-grade stainless-steel rotor with aluminium splined centre lock fitting. Supplied Thru-axle lockring and 1.8mm thickness for robust, reliable braking.
Consistent stopping power - with a high-grade stainless-steel rotor
A stainless-steel braking surface pairs with an aluminium splined centre lock fitting to manage braking forces and contact stability. The construction reduces unwanted flex under load, helping the braking surface remain true during repeated stops.
Reliable modulation and predictable bite on descents and in traffic, useful when precise speed control matters. Strong braking response helps riders feel more confident on technical sections.
Durability for demanding rides - with an optimal 1.8mm thickness
The 1.8mm thickness increases structural robustness compared with thinner rotors, resisting warping during heavy or prolonged braking. Thicker material maintains braking geometry under heat and mechanical stress.
Longer service life under repeated hard use, reducing the risk of rotor deformation on long descents. Ideal for riders who tackle steep, technical or loaded routes regularly.
Quick, secure fitment - with centrelock mounting and supplied Thru-axle lockring
A splined centre lock interface matches centrelock-compatible hubs for precise axial alignment. Inclusion of a Thru-axle lockring allows secure installation on wheelsets that require that accessory.
Faster installation and a secure fit without hunting for extra parts, helpful for workshop maintenance or roadside swaps. Clean alignment reduces rotor wobble and simplifies setup.
✨ The 4 Key Reasons for Clarks Cycle Systems A1 Centrelock Disc Brake Rotor
- High-grade stainless-steel surface – Durable contact patch resists wear over long miles
- Aluminium splined centre – Improves alignment, reducing lateral runout and wobble
- 1.8mm thickness – Adds rigidity for sustained braking on steep descents
- Thru-axle lockring included – Speeds installation on centrelock wheels without extra purchases
📋 Technical Details at a Glance
- Category: Disc brake rotor
- Material: High-grade stainless steel braking surface, aluminium centre
- Thickness: 1.8mm
- Mounting: Centrelock splined fitting
- Included accessories: Thru-axle lockring
❓ Frequently Asked Questions
Q: Is the rotor compatible with centrelock hubs?
A: Yes, the centrelock splined fitting is designed for centrelock-compatible wheelsets and includes a Thru-axle lockring for secure fitment.
Q: Will the 1.8mm thickness hold up on long descents?
A: The 1.8mm thickness offers enhanced robustness and helps resist deformation during prolonged or heavy braking, making it suitable for demanding rides.
Q: Is the 140mm size suited to gravel and hybrid bikes?
A: Yes, the 140mm diameter is described as lightweight and specifically designed for road, hybrid and gravel bikes.
🏆 Our Verdict
The Clarks Cycle Systems A1 Centrelock Disc Brake Rotor suits riders who demand reliable, repeatable braking on road, hybrid and gravel bikes. The combination of a high-grade stainless-steel braking surface, 1.8mm thickness and centrelock fitment with a supplied Thru-axle lockring delivers durable stopping power and straightforward installation. Although not the cheapest option, long-term value comes from robust construction and dependable performance on demanding rides.
