Background: Low back pain (LBP) commonly occurs among motor vehicle users. There are differences in posture, whole body vibration, and lumbar support between car drivers and motor vehicle riders that may influence Oswestry Disability Index (ODI). In addition, Body Mass Index (BMI) could be risk factor contributing to mechanical stress on lumbar vertebrae.

Objective: This study aims to compare Oswestry Disability Index (ODI) scores between motorcycle riders and car drivers and to evaluate the relation between BMI with disability severity.

Methods: A cross-sectional study was performed using Oswestry Disability Index Questionnaire. Data collection uses randomized sampling with primary data from interview and questionnaires using 10 score of Oswestry Disability Index (ODI) to random person. Inclusion criteria were adults aged 20- 60 years old who used their vehicle regularly for at least 1 year. BMI was calculated using weight in kilogram divided by height in meter squares and categorized based on WHO classification.

Results: From December 2025, we collected 120 total samples: 60 motorcycle riders; 60 car drivers. The result showed significant differences (p<0,005) in Oswestry Disability Index. BMI as the risk factors also higher in motorcycle group compared to car group though the difference was not statistically significant.

Conclusion: Motorcycle riders show significantly greater LBP-related disability compared to car drivers. Higher BMI independently related to increased ODI scores, suggesting ergonomic factors and body weight contributed to functional impairment. Weight management and ergonomic intervention may reduce disability among moto vehicle users.