What we test.

Different shells behave very differently with your head angle and shoulder shape. We A/B yours against alternatives.

• Time-trial helmets
  Long-tail, short-tail and stubby shapes
• Aero road helmets
  When a TT lid isn't allowed or practical
• Visor vs glasses
  Airflow around the face

The biggest free watts on the bike. We isolate each adjustment so you see exactly what moves the needle.

• Hand position
  Praying mantis, shrugged, narrow vs wide grip
• Elbow width
  Pad spacing in 1–2 cm increments
• Arm-pad height
  Stack changes and shoulder drop
• Reach
  Extension length and cockpit angle
• Torso angle
  Hip rotation and back flatness
• Head position
  Turtle vs neutral vs high

Fabric, seam placement and fit can be worth more than a wheel upgrade.

• Tri-suit vs skinsuit
  Sleeve length and fabric zones
• Number placement
  Belt vs pinned, front vs rear

Lower-leg drag is real. Small textile choices add up over 180 km.

• Calf sleeves / aero socks
  Height, fabric and texture

Bottles change airflow around the frame and rider. We find the cleanest carry for your race distance.

• Bottle between the arms
  Front hydration systems
• Bottle behind the saddle
  Single or twin cage mounts at different heights
• Frame bottles
  Down-tube and seat-tube cages

Rim depth interacts with your frame, tyres and yaw exposure — deeper isn't always faster.

• Wheel depth
  20 / 40 / 60 / 80 mm comparisons
• Rear disc vs deep section

Rolling resistance and aero are tested together — the fastest tyre is the one that wins both.

• Tyre model & width
  25 / 28 / 30 mm across leading brands
• Tyre pressure
  Sweep to find your Crr + aero optimum