PRO Vibe Carbon Road Stem 100mm 31.8mm +/-8 Degree Black
SKU code: SHM-PRSS0504
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The PRO Vibe Carbon stem brings race-proven stiffness and a clean aerodynamic profile to your road cockpit. Built from full unidirectional carbon, it delivers direct, confidence-inspiring steering response while keeping weight impressively low — ideal for performance road riders who want to sharpen their front end without compromise.
Highlights
- Full UD carbon construction: maximises stiffness-to-weight ratio for confident steering under hard efforts.
- Reversible +/-8 degree angle: flip the stem to fine-tune your riding position without needing a different part.
- Shimano Di2 compatible: internal routing provisions keep your cockpit free of exposed wiring for a tidy finish.
- Aerodynamically optimised profile: the slim form tidies the front of the bike and suits a race-focused build.
- Puzzle-style handlebar clamp: two alloy clamp pieces distribute clamping load evenly across the bar for secure, damage-free grip.
- Weight from 120g: one of the lightest stems in PRO's road range.
Built for performance road riding
The Vibe Carbon is PRO's benchmark road stem — the same platform trusted by Shimano-sponsored WorldTour professionals. The unidirectional carbon layup provides a notably stiff feel underfoot when sprinting or climbing out of the saddle, while the clean silhouette suits both classic and modern road builds. The carbon construction is complemented by a carbon top cap, which should be installed carefully at the recommended torque.
Reversible angle for fit flexibility
With a reversible design offering +8 or -8 degrees of rise, the Vibe Carbon gives you genuine fit versatility from a single stem. Run it positive for a more upright position, or flip it negative for a lower, more aggressive front-end drop. Installation is straightforward, and no additional hardware is needed to switch between angles.
Compatibility & Fit
Handlebar clamp diameter: 31.8mm. Steerer / fork interface: 1-1/8 inch (28.6mm). Stem length: 100mm. Angle: +/-8 degrees (reversible). Available in lengths from 80mm to 130mm (in 10mm increments) across the range. Suitable for Shimano Di2 cockpits where internal stem-routing is preferred. Confirm your handlebar uses a 31.8mm clamp section and your fork has a 1-1/8 inch steerer before fitting. Follow PRO's torque specifications and treat the carbon top cap with care during installation.
- Full unidirectional (UD) carbon body for maximum stiffness with minimal weight
- Weight from 120g — among the lightest stems in the PRO road range
- Reversible design provides +8 or -8 degree angle from a single stem
- Shimano Di2 compatible with internal wiring routing provisions
- Aerodynamically optimised profile for a clean, race-ready cockpit
- Puzzle-style alloy faceplate distributes clamp load evenly across the handlebar
- Available in 80–130mm lengths (in 10mm steps) across the Vibe Carbon range
| Brand | PRO (Shimano) |
| Model | Vibe Carbon |
| Part Number | PRSS0504 |
| Length | 100mm |
| Handlebar Clamp Diameter | 31.8mm |
| Steerer Diameter | 1-1/8 inch (28.6mm) |
| Angle | +/-8 degrees (reversible) |
| Material | Full unidirectional (UD) carbon |
| Weight | From 120g (top cap excluded) |
| Colour | Black |
| Di2 Compatible | Yes (internal routing) |
| SKU | SHM-PRSS0504 |
| Barcode # | 8717009402477 |
| Brand | PRO |