What Drivers Should Leave When Passing Cyclists (1.5 Metres) and Horses (2 Metres)

• The Highway Code asks for at least 1.5 metres when passing a cyclist at up to 30mph, and more space above that speed.
• A horse rider or a pedestrian walking in the road gets at least 2 metres, with the car under 10mph for a horse and at a low speed for a walker.
• The Code uses “should” for these gaps, so a driver who cannot leave them waits behind, and a court can still use the Code as evidence.

Leave 1.5 Metres for a Bike, 2 Metres for a Horse, and Wait Behind When the Road Offers Neither

The gap for a cyclist is at least 1.5 metres (about 4 feet 11 inches) at speeds up to 30mph, and the Code asks for more space at higher speeds. A horse rider or a horse drawn vehicle gets at least 2 metres (about 6 feet 7 inches), and the car passes at under 10mph. A pedestrian walking in the road, on a lane with no pavement for example, also gets at least 2 metres, with the car kept to a low speed. Rule 163 of the Highway Code sets all three figures, and the Department for Transport last updated the Code on 22 October 2025.

Rule 163 adds a fourth instruction that settles most real situations. When the road cannot give you those clearances, or the pass is unsafe, you hold back and do not overtake. On a narrow lane with a car coming the other way, that means sitting behind the rider until the road opens up.

The Code introduces these numbers with the words “As a guide”, and the wording around them is “should”, not MUST. The legal effect of that wording is in the last section. The detail for each road user comes first, as the Code asks for different things depending on who is ahead.

Cyclists: 1.5 Metres, a Lane Centre Position and Junction Rules

Rule 163 asks drivers to give cyclists at least as much room as they would give another car, and the 1.5 metre figure puts a number on it. The speed band sets the figure: it holds for passes at up to 30mph, and above 30mph the Code asks for more space without naming a distance. A driver on a 40mph or 50mph road has no printed target, which makes the sensible reading a gap wider than 1.5 metres.

The Code also sets the order of the pass. Rule 162 comes first: a clear road ahead, nobody starting to overtake you and a suitable gap in front of the cyclist. Then Rule 163 asks for mirrors, a signal at a safe moment and a quick look into the blind spot before moving out. Alongside, you pass quickly with room to spare and return to the left without cutting in.

A cyclist in the middle of the lane has a reason, and Rule 213 gives it. Cyclists sometimes take the centre of the lane on narrow stretches, quiet streets, at junctions and in slower traffic, and the Code asks drivers to let them, so the rider can see and be seen. Groups can ride two abreast in the same situations, which the Code says can be safer. The Code also advises riders to stay a door’s width, or 1 metre, away from parked cars. Add that to the passing gap and a rider 1 metre out from a row of parked cars, with 1.5 metres beside them, puts your car 2.5 metres from the parked line, if the gap is measured from the rider. The Code does not say where the measuring starts.

Rule 212 says a rider who looks over their shoulder could be about to pull out, turn right or change direction, and the driver should give time and space. Rule 213 adds that riders sometimes have to dodge uneven surfaces, drain covers and oily, wet or icy patches, so the Code asks for plenty of room and attention to any sudden change of direction. Cambridgeshire County Council has run a campaign on Rule 163 from April 2026, and Cambridgeshire’s close pass crackdown shows how an authority pushes the 1.5 metre message.

Junctions create the other half of the problem. Rule 211 notes that cyclists are hard to spot when they wait alongside you, come up from behind, move off from junctions or filter through traffic, and that they can approach faster than you expect. The Code tells drivers not to turn at a junction if doing so would make a cyclist going straight ahead stop or swerve. Turning right across a line of slow moving or stationary traffic, you give way to cyclists on the inside of that line. Rule 167 applies the same logic to left turns: behind a cyclist approaching a junction or roundabout, with a left turn planned, you stay behind and do not cut across a cyclist going ahead, in a cycle lane or not. Rule 170 asks you to remain behind cyclists at junctions even when they wait to turn close to the kerb.

Horse Riders: Under 10mph, 2 Metres and a Quiet Engine

Rule 215 covers horses in its own wording. On seeing a horse on a road, you slow to a maximum of 10mph, stay patient and keep off the horn and the throttle. When it is safe to pass, you go wide and slow with at least 2 metres of space. Rule 163 repeats the 10mph and 2 metre figures, so two parts of the Code agree.

Rule 215 explains the ban on the horn and the engine note in two lines: “Remember there are three brains at work when you pass a horse; the rider’s, the driver’s and the horse’s.” and “Do not forget horses are flight animals and can move incredibly quickly if startled.” Rule 214 applies the same logic to animals in general: no horn, no revving and no hard acceleration once you have passed them. If a herd blocks the road, stop and switch off your engine until the animals have left.

Rule 215 asks drivers to look out for the signals of horse riders and horse drivers and to comply when one asks you to slow or stop. Horse riders are often children, so the Code asks for extra care, and a pair riding in double file can be an escort for a young or inexperienced horse or rider. On narrow sections riders can also take the centre of the lane under Rule 213, so they can see and be seen.

Drivers in the New Forest, Exmoor or Dartmoor get a further instruction. Rule 215 says feral or semi feral ponies in areas such as those need the same consideration as ridden horses.

Pedestrians in the Road, Bad Weather and Darkness Add Space

The same Rule 163 gives pedestrians walking in the road at least 2 metres and a low speed. Pedestrians can use any part of the road unless signs prohibit it, so a country lane with no footway is lawful ground for them. Rule 206 asks drivers on narrow rural roads without a footway to slow down, be ready to stop and give people plenty of room. Rule 207 gives the speed stakes: a car at 40 mph will probably kill a pedestrian it hits, and at 20 mph the chance of a death is 1 in 20.

Bad weather and night change the sums. Both Rule 163 and Rule 212 tell drivers to allow extra room and take more care whenever the weather is bad, which the Code says includes high winds, and after dark, and the instruction covers all the road users above. Judging speed and distance gets harder at night and in poor visibility, a difficulty Rule 163 names directly. The Code leaves the extra amount to the driver and names no figure, so the 1.5 metre and 2 metre distances are the minimum starting point. The same habit of leaving a bigger gap in poor grip is covered in driving on ice and snow.

When Waiting Behind Is the Only Answer, and What “Should” Means in Court

Some places rule out the pass altogether, whatever the gap. Rule 165 is written as MUST NOT, which makes it law. The ban applies where the manoeuvre would take you over double white lines with a solid line on your side, or into a bus, tram or cycle lane while its restriction runs. It also applies past a No Overtaking sign until a sign cancels it, and to the vehicle nearest a pedestrian crossing. Rule 166 adds that any doubt means no pass, with corners, bends, hump bridges and hill brows as its examples. Rule 167 adds junctions, narrowing roads and any pass that leaves another road user braking or steering away. On those stretches the 1.5 metre gap is unavailable, and the move is to drop back.

Waiting is slower, and Rule 169 asks drivers not to hold up a long queue of traffic. If a queue forms behind you, check the mirrors and pull in where it is safe to let it pass.

The wording of the Code decides the legal question. The 1.5 metre, 2 metre and 10mph figures sit under the phrase “As a guide”, and the instructions use “should”. The Introduction to the Code is clear on how the two kinds of rule differ. Rules marked MUST or MUST NOT are legal requirements, and breaking one is a criminal offence that can bring a fine, penalty points, disqualification and, in the most serious cases, prison. The same paragraph of the Code continues: “Although failure to comply with the other rules of the Code will not, in itself, cause a person to be prosecuted, The Highway Code may be used in evidence in any court proceedings under the Traffic Acts (see The road user and the law) to establish liability. This includes rules which use advisory wording such as ‘should/should not’ or ‘do/do not’.”

That leaves a driver with no fine for the gap itself, as the Code attaches none to it. A close pass can still be judged as driving without due care and attention, which the DVLA endorsement list scores at 3 to 9 penalty points, and the Code can be put in front of the court when that happens. The hierarchy of road users points the same way. Rule 204 and Rule H1 put the heaviest duty of care on whoever could do the most damage in a collision. For the pedestrian, the cyclist and the horse rider, that makes the car driver the person who should adjust.

The working rule: pass a cyclist with 1.5 metres at up to 30mph and more at speed, pass a horse at under 10mph with 2 metres, pass a walker with 2 metres at a low speed, add space in bad weather and darkness, and wait behind when the road will not give you the room. A road safety organisation pushes the same two figures in GEM’s advice on horse riders and pedestrians.

Want more car content? Add us as a preferred source on Google to your favourites list for the best automotive news and analysis on the internet.

If you enjoyed this article, be sure to follow us on Microsoft Start.

Sources

• GOV.UK: The Highway Code, Using the road (159 to 203)
• GOV.UK: The Highway Code, Road users requiring extra care (204 to 225)
• GOV.UK: The Highway Code, Introduction

Reviewed by Preetam Gadekar