Badge Kids › Road Badge › Section 4 › Lesson 4.1

Ages 11-16 · Road Badge · Section 4

Why looking back makes you swerve

Say why a rider drifts when they look behind, and hold your line through a full look using the stiff-arm method on both sides.

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Step 1 of 10

1Watch

The look and the drift

Film

The look and the drift

A rider goes down a chalk line, turns their head to look over the right shoulder, and the machine drifts about a foot and a half to the right; the frame freezes with the front wheel off the line and the rider still looking back.

15 seconds

That rider did exactly what they were asked to do. The drift was not carelessness. It was the machine doing what their shoulders told it to.

2The idea

The gate that every programme puts right here

The UK national cycle training scheme has two criteria at the end of its traffic-free level: look behind over each shoulder while pedalling in a straight line, and pedal one handed in a straight line. Then it writes the gate in plain words — demonstrating that whole level is a prerequisite for going out on roads at all.

It looks like the smallest skill in this course and it is the one everything on a road is built on. You cannot join traffic until you can take your eyes off where you are going, and a hand off the bars, and still be exactly where you were.

3The idea

The mechanism, and it is not about balance

The training article says it in one line: a bicycle is steered as much by the hips and shoulders as by the hands. Twist right, and you drift right. Your arms connect you to the handlebar, so a torso that rotates takes the bar with it by a few degrees, and a few degrees is all it takes.

One American source offers a second explanation about the balance organs inside your head and the fluid in them moving when you turn. We could not find research behind that one, so we are flagging it rather than teaching it. The shoulder explanation is the mechanical one, and it is the one the fixes actually work on.

4The idea

Three fixes, and the middle one is the one to learn

An American cycling school teaches three of them.
Relaxed: arms loose and slightly bent, turn only your head. Fine for a very quick look.
Stiff arm: lock out the elbow on the side you are looking and tuck your chin down to that shoulder. The locked arm physically stops the shoulder rotation reaching the handlebar.
Full rotation: sit up, take one hand off, turn the shoulders.

Learn the stiff arm first. It is the one that works for a real look rather than a flick, it does not need a hand off the bars, and it is the one that turns a foot of drift into none.

5Decide

You look over your right shoulder and the machine goes right with you.

Yes, and it fixes the cause instead of the symptom. The drift comes from your shoulder turning the bar, so a locked elbow puts a rigid straight thing between the two and the rotation stops at your neck. Your head still gets all the way round, which is the part that was the point.

Both of those make the look worse without making the line better. A smaller turn of the head means you see less, which is the entire reason you were looking. And gripping harder does not stop your shoulders rotating — it couples you to the bar more firmly, so the bar gets more of the twist rather than less.

Pick one to carry on.

6Look

Where the twist stops

Two photographs taken from the front: one rider looking back with both elbows bent and the handlebar visibly turned a few degrees, one looking back with the right elbow locked straight and the handlebar square. — Two riders looking back

Same head position in both pictures. The only difference is one straight arm, and it is the whole difference between a foot of drift and none of it.

7Your turn

Turn the shoulders

Interactive

Where the twist goes

A rider seen from above on a straight line. A slider turns their head and shoulders round. Toggle between loose arms, a locked elbow and a hand off the bar, and watch how much of the shoulder rotation reaches the handlebar and how far the line bends.

Push the slider all the way with loose arms first, so you can see how little rotation it takes to move a front wheel.

8Find them

Which of these help you hold the line through a look?

Tap the ones that count.

Find all 4.

9Say it

Two things before every look

Say it out loud on the practice runs

“Lock it. Chin down.”

Say it out loud on the first twenty looks and the arm starts doing it before your head turns. After that it stops being a technique and becomes just how you look behind.

10Do it

Before you leave this page

In your practice space, ride a chalk line and look over your right shoulder with that elbow locked and your chin to your shoulder. Then the same over the left. Ten each way, with somebody watching the front wheel and telling you honestly whether the line moved.

Tick it when you have done it.

Lesson done.

The machine follows your shoulders. Lock the elbow, chin to that shoulder, and the line stays where it was.

Next lesson: The drill that proves you actually looked

Section 4 · Look Behind, Ride Straight

4.1Why looking back makes you swerve 4.2The drill that proves you actually looked 4.3Riding one-handed without going anywhere 4.4The glance, the check and the stare 4.5Look, signal, see them respond, then move ★Section check

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