Nice you want to join tomorrow. Mudguards are not obligatory but are appreciated for the people behind you. But I must admit a lot of people don't have them, so no guarantee your face is mud free at the end of the ride.
The B group is normally around 15 mph. However first time riding in a group takes up energy (concentration on new signs etc), so I would normally advice new people to join a group "lower" the first time, to get used to the group riding, without being already on your physical limit. However this is up to you to judge.
@Martine
Hey @samtravels,
Nice you want to join tomorrow. Mudguards are not obligatory but are appreciated for the people behind you. But I must admit a lot of people don't have them, so no guarantee your face is mud free at the end of the ride.
The B group is normally around 15 mph. However first time riding in a group takes up energy (concentration on new signs etc), so I would normally advice new people to join a group "lower" the first time, to get used to the group riding, without being already on your physical limit. However this is up to you to judge.