Bespoke is an observational, prospective, cohort study. The aim of this study is to explore injury patterns of patients who require admission to the Royal London Hospital (RLH) Emergency Department (ED)or outpatient clinics as a result of any collision involving a bicycle. Secondary objectives are to determine the circumstances around cycling injury and to explore the effect of cycling collisions on the return to work, activities of daily living and cycling. All patients that attend the Emergency Department of the Royal London Hospital following an injury sustained while cycling, will be invited to take part in the study. Participants will be asked to answer a questionnaire about their cycling routines as well as provide information about the location, conditions and events surrounding their collision. Patients' recovery will be followed by the study team using the electronic health record and by reviewing the patients' notes. Morbidity and mortality data will be completed at death, discharge or 28 days from admission (whichever comes first). The patients will be followed up in person, email, or via telephone at 6 weeks following their initial admission. The research team hosted a Patient and Public Involvement (PPI) event, to determine which outcome measures were important for the public to investigate. It was found that the majority of the group felt it was important to follow up return to work, return to cycling and return to activities of daily living in any patients who have had a cycling collision. These outcomes will be measured at the 6 week follow up.

Inclusion Criteria:

• All patients who are 16 years and older attending the Royal London Hospital Emergency department who have been injured while riding a bicycle (pedal cycle)
• All patients who are 16 years and older who are transferred to the Royal London Hospital, either for inpatient or outpatient care, who were injured whilst riding a bicycle

Exclusion Criteria:

• Patients who have been injured while involved in activities other than cycling
• Patients that decline to take part in the study
• Patients who are 15 years or younger
• Off road cyclists
• motorbike riders

Patients who attend the Royal London HOSPT