Built for long days on rough roads, the PRO Discover Alloy 20 gives you a wide, stable platform to control your gravel bike with confidence. The 20-degree flared drops widen your grip exactly where you need it on loose, technical terrain, while the ergonomic tops keep your hands comfortable hour after hour.

Highlights

  • 20-degree flared drops for extra control and stability off-road
  • Compact bend makes moving between the tops and drops quick and natural
  • Tough, lightweight 6066 alloy construction
  • Semi-internal cable routing for a clean, snag-free cockpit
  • Designed to complement Shimano GRX gravel components

Control where it counts

The flared drops put your hands wider apart for more leverage and steadier steering when the surface gets rough. A compact, shallow bend means the drops stay within easy reach, so you can change hand positions on the move without unsettling the bike.

Comfort for the long haul

Ergonomically shaped top sections give your palms a more natural resting place on flat and rolling sections, reducing fatigue on big gravel days and bikepacking trips. A 3-degree outsweep adds to the relaxed, hands-on-the-tops feel.

A tidy, capable cockpit

Semi-internal cable routing keeps housing and Di2 wiring close to the bar for a clean look and fewer snags. The optimised mid-section leaves room for lights, a GPS mount or GRX sub-brake levers.

Compatibility & fit

This is the 42cm (420mm) width with a 31.8mm clamp diameter, suiting any standard 31.8mm gravel or road stem. The semi-internal routing is set up for Shimano Di2 cabling and a bar-end junction, and the bar is designed around the Shimano GRX gravel groupset. Drop is 100mm and reach is 75mm. Measure your current bar before ordering to confirm the width and reach suit your riding position.

PRO components are covered by a manufacturer's warranty against defects in materials and workmanship. The warranty does not cover normal wear and tear, crash damage, improper installation, or damage from use beyond the product's intended purpose. Carbon and alloy handlebars are safety-critical parts; install to the specified torque and inspect regularly.

For warranty support, return the item to Tune Cycles and we'll manage the claim for you.

This warranty is in addition to, and does not limit, your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.

  • 20-degree flared drops for control and stability on gravel
  • Compact drop bend for easy transitions between tops and drops
  • Ergonomically shaped top sections for all-day comfort
  • 3-degree outsweep on the tops
  • Lightweight, robust 6066 alloy construction
  • Semi-internal cable routing optimised for Shimano Di2
  • Mid-section sized for lights, GPS mounts or GRX sub-brake levers
  • Designed to complement Shimano GRX gravel components
  • Black finish
BrandPRO
ModelDiscover Alloy 20
Part numberPRHA0674
TypeGravel drop handlebar
Material6066 alloy
Width420mm (42cm)
Clamp diameter31.8mm
Flare20 degrees
Drop100mm
Reach75mm
Outsweep3 degrees
WeightFrom 265g
Cable routingSemi-internal (Di2 compatible)
ColourBlack
SKU SHM-PRHA0674
Barcode # 8717009898904
Brand PRO

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