Bike Size Guide for Riders with Back Problems

Riders with back problems need geometry that minimizes spinal stress through a more upright riding posture. This typically means handlebars positioned 2-4 inches above saddle height, a shorter reach of 10-20mm less than standard recommendations to avoid hunching, and careful attention to saddle tilt — a slight nose-down angle of 1-2 degrees can relieve pressure on the lower back. A more upright position distributes weight more evenly between hands, sit bones, and feet, reducing lower back strain. Avoid aggressive, hunched positions that compress the lumbar vertebrae. Consider bikes with taller head tubes, adjustable stems with positive rise (10-17 degrees), and suspension seatposts that absorb road vibration before it reaches your spine. Stack height should be prioritized over reach when choosing frame size.