This has been reprinted from the British cycling club’s guide to riding in a group.
If you’re not used to riding in a group, rolling away from the start line of a sportive surrounded by other riders can be intimidating and by not being comfortable in a group and being able to shelter from the wind, you’ll be making any ride significantly more difficult.
Communicate and Calling out
The most important factor to successful group riding is communication. Make sure you know the meaning of and always pass any verbal signals through the group. As well as obvious shouts such as “slowing” and “stopping”, others to be aware of are “car down”, meaning there is a car ahead coming towards the group to be aware of, “car up”, meaning there is a car behind waiting to come through and “single file”, meaning to adopt single file. Be aware there are local variations of these shouts, so use your eyes too. There are a number of hand signals on top of the normal left and right hand signals you should also be aware of (see illustrations below).
Stay relaxed in the group but constantly look around and don’t mindlessly follow the wheels. Look past the riders in front to get a heads up of the road ahead. Always look first and let the riders around you know before moving within the group.
Obey the rules of the road
Most Sportives take place on roads that are open to traffic and, even with those on closed roads, there’s no guarantee that there won’t be some traffic on the course, so ride accordingly. Respect junctions and always stay on the correct side of the road.
Ride consistently and predictably
Your movements will affect everyone in the group. Hold a straight line, don’t weave and always overtake around the right hand side of the group. Don’t grab your brakes and, if you stand out of the saddle, don’t let your back wheel drop back. Also, when you come to a feed station, no matter how relieved you are to see it, don’t veer across the road.
Don’t overlap wheels
In case the rider ahead needs to brake, don’t follow their rear wheel directly. It’s perfectly acceptable and you’ll get the same drafting benefit from riding six inches either side of it. However it’s essential that you don’t overlap their rear wheel as any sudden movements by them will be likely to bring both of your down.
Make sure both you and you’re bike are prepared
Ensure your bike is well maintained as misfiring gears or poor brakes can make you a liability in a bunch. Carry suitable spares, clothing and some of your own food and drink so that you are self reliant.
Avoid half wheeling
If road conditions and traffic allows you’ll often be riding two abreast. Maintain an even pace and stay level with the person next to you. Do not constantly up the pace whenever a rider draws level to you. Known as “half-wheeling” this is definitely frowned on.
Don’t always sit amongst the wheels and shirk your stint on the front. Even if you just put in a few turns of the pedals it’ll be appreciated. However, even if you’re finding the pace easy, don’t get on the front and accelerate, try to maintain the pace of the group.
Don’t ride in the gutter
If you’re on the front of the group, don’t sit in the gutter as you’ll be forcing everyone else to follow you increasing the likelihood of hitting obstructions such as drain covers and of picking up punctures. Where possible, ride 1 m out from the curb.
Expect the group to change
Groups will change, fragment and reform as the ride progresses. Expect larger groups on flat sections but, on longer climbs, they’ll break up. Similarly, on descents, riders will tend to string out to give more time to react at higher speeds.
In addition to the standard directional signal of the left or right hand extended out to the side, which should be used whenever you are cycling on the public highway, see below some of the other common hand signals used when riding in a group situation.
Make yourself aware of these prior to going out on a group ride and also check with a group member which hand signals and verbal shouts they regularly use, as they can vary locally.
One hand as if “gently patting an invisible dog”: This shows that the group is slowing down or just to ease the pace back a bit.
“Pothole or hazard in road”
Pointing down at the road sometimes with a circling motion: Indicates an obstruction or hazard on the road such as a pothole or drain cover that needs to be avoided. Be sensible with this one and only point out major obstacles that should be avoided. This signal is often accompanied with a call of ‘below’.
“Move out due to obstruction”
Waving/pointing behind back: Indicates that there is an obstruction such as a parked car or pedestrian and that the whole group needs to move in the direction indicated to avoid it.
GCN’s How to Ride in a Group
GCN’s video of group ride is also worth a watch:
The complete British Cycling article is here