Group Riding Efficiency: Drafting, Positioning, Teamwork

How do I ride efficiently in a group?

Group riding is a skill that trades wind for watts. Done well, you save 20–40% of your power at speed, ride safer, and finish fresher. The keys are drafting, smart positioning, smooth pacing, and clear communication.

Drafting and positioning 101

Drafting reduces aerodynamic drag. The faster the group, the bigger the benefit. Your goal is steady speed with minimal braking or surging.

  • Follow distance: aim for 30–60 cm from the wheel ahead. In gusty wind or if you’re new, give yourself a bit more space.
  • Offset slightly: sit 10–20 cm to the sheltered side of the wheel ahead, not directly behind the tire.
  • Look past the rider: keep your head up and scan 3–5 riders ahead. Use peripheral vision for the wheel in front.
  • Stay relaxed: bent elbows and a light grip absorb speed changes and road buzz.
  • No overlapping: avoid overlapping your front wheel with the rear wheel ahead. If they move sideways, you have nowhere to go.
  • Use the wind: if the wind hits from the left, shelter to the right of the rider ahead (and vice versa). In strong crosswinds, form an echelon across the lane where safe and legal.
Position Approx. power saving at 35–40 km/h Notes
On the front 0% Set steady pace; watch the road
Second wheel 25–35% Biggest single draft gain
3rd–6th wheel 35–45% Strong shelter, smoothest ride
Deep in bunch 40–50%+ Varies with density and wind

Coach tip: efficiency shows up in the file. In a well-run group, normalized power (NP) drops and variability index (VI) stays low (<1.10) compared with riding the same speed solo.

Pacelines and rotation: smooth speed, short pulls

Pacelines share the workload and keep speed steady. Choose the style that fits the group and road conditions.

Single paceline (steady)

  1. Hold the group’s speed at the front. No accelerations.
  2. When your pull is done (10–30 seconds, shorter in wind or uphill), flick an elbow to signal you’re pulling off.
  3. Ease the power slightly, check it’s clear, drift into the windward side, and let the line roll through.
  4. Slot back onto the last wheel without braking hard. Add a few soft pedal strokes if the gap opens.

Rotating paceline (through-and-off)

  1. Two lines: faster line moves up in the sheltered lane; slower line drifts back into the wind.
  2. Each rider does micro-pulls of a few seconds. The aim is zero surging and constant speed.
  3. Pull off into the wind as soon as you clear the front wheel, then gently drift back.
  • Pull length: match fitness and conditions. If you’re stronger, pull a little longer, not harder.
  • Steady speed, not ego watts: keep the same speed as the group, even if your FTP says you can do more.
  • Keep gaps tiny: 20–50 cm. Every bike-length you let open costs a surge to close.

Save energy through smoothness and teamwork

Most wasted energy comes from unnecessary spikes above threshold. Aim for a low-variability file and good positioning.

  • Avoid accordion effects: brake early and lightly before corners, then roll the speed. Don’t sprint out unless you must.
  • Gearing and cadence: use small gear changes to match speed. Keep a relaxed cadence (85–100 rpm) to absorb minor speed shifts.
  • Climbs: start near the front and ride your own steady power. Try a gentle “sag climb”: begin in the front third, hold ~95–100% of FTP while others surge, and let yourself drift back slightly over the top.
  • When others stand: teammates often slow a touch when standing. Anticipate with a small micro-acceleration to keep the wheel.
  • Descents: ride in the drops for stability, look through the turns, and keep light pressure on the pedals to hold contact.
  • Fuel and fluids: for rides over 90 minutes, aim for 60–90 g carbs per hour and 500–750 ml fluid per hour, adjusting for heat. Eat during steady sections, not mid-corner or during rotations.

Quick benchmark: in a 2-hour fast group, a strong 75 kg rider might see 210–230 W NP in the wheels vs 260–280 W solo at the same speed. That’s the power of drafting.

Communication, etiquette, and safety

  • Predictability beats bravery: hold a steady line, no sudden brakes or swerves.
  • Standard calls: slowing, stopping, car back, car up, hole, gravel. Point out hazards and pass the call along.
  • No half-wheeling: when side-by-side, keep your front wheels even. Don’t creep the pace up.
  • Aero bars stay off: never use clip-ons in a bunch. Hands on hoods or drops for control.
  • Pull off into the wind: this preserves shelter for the line coming through.
  • Mind the back: the last rider (“sweeper”) watches for splits and calls for easy if someone is gapped after corners.

Practice drills you can use this week

  • Wheel follow on a quiet road: two riders, the follower holds 30–60 cm at a steady 30 km/h (19 mph). Swap every 2 minutes.
  • Short-pull single paceline: 6–10 riders, 10–20 second pulls, strict no-surging rule. Aim for VI < 1.05 over 20 minutes.
  • Through-and-off: practice rotating with 4–6 riders in light wind, then add crosswind to learn echelons.
  • Cornering string: roll a gentle circuit and focus on braking before the turn and zero gaps on exit.

Ride within your limits, choose the right line for the wind, and keep the speed smooth. The fitness you save in the wheels is the speed you can spend when it counts.