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RollingStone Manta Integrated Carbon Handlebar
The RollingStone Manta is a one-piece integrated carbon cockpit with fully internal cable routing. Inspired by the manta ray’s streamlined, flat physique, it uses a biomimetic concave shape to sharpen aerodynamics. Made from Toray T800 carbon in a single-piece mould, it publishes 75 mm reach, 125 mm drop, and a 10° stem angle, with the drops set 20 mm wider than the tops for extra knee clearance. The Manta fits OD1/OD2 (28.6 / 31.8 mm) steerers via 3D-printed adapters for multiple bike brands, reserves both Di2 and mechanical routing, and includes a Garmin/GoPro speedmeter bracket plus stem spacers. Claimed weight is about 320 g (400/100, ±15 g).
Spec Snapshot:
One-piece Toray T800 carbon • Reach 75 mm • Drop 125 mm • 10° angle •
~320 g (400/100, ±15 g) • OD1/OD2 (28.6 / 31.8 mm) fit • Di2 + mechanical reserved •
Drops 20 mm wider than tops • Speedmeter bracket + spacers included
RollingStone Manta Integrated Carbon Handlebar — Features & Benefits
- Integrated one-piece cockpit: Clean bar-and-stem unit with fully internal cable routing.
- Biomimetic aero shape: Concave manta-ray profile shaped to improve aerodynamics.
- Toray T800 carbon: Produced in a single-piece mould for a light, stiff front end.
- Published fit geometry: 75 mm reach, 125 mm drop, and a 10° stem angle.
- Knee clearance: Drops are 20 mm wider than the tops for more knee space and control.
- Broad compatibility: Fits OD1/OD2 (28.6 / 31.8 mm) steerers via 3D-printed adapters for multiple brands.
- Electronic + mechanical: Di2 and mechanical routing both reserved.
- Accessories included: Garmin/GoPro speedmeter bracket plus stem spacers (10 mm ×3, 5 mm ×1).
RollingStone Manta Integrated Carbon Handlebar — Specifications
Dimensions & Fit
- Reach: 75 mm
- Drop: 125 mm
- Stem angle: 10°
- Top width (A): 340 – 400 mm
- Drop width (B): 360 – 420 mm (20 mm wider than tops)
- Stem length (C): 80 – 120 mm
Construction & Weight
- Material: Toray T800 carbon fiber
- Construction: One-piece mould
- Claimed weight: ~320 g (400/100, ±15 g)
- Steerer fit: OD1/OD2 (28.6 / 31.8 mm)
- Shifting: Di2 and mechanical reserved
Included & Notes
- Included: Speedmeter bracket (Garmin + GoPro), stem spacers 10 mm×3 + 5 mm×1
- Adapters: 3D-printed adapters available for multiple brand bikes
- Use carbon assembly paste and torque to the manufacturer specification.
