RecoveryAnswer

WHY DOES CYCLING CAUSE LOWER BACK PAIN AND HOW DO YOU FIX IT?

By Anthony WalshRoadman CyclingUpdated 9 July 2026

ANSWER

Lower back pain in cycling most commonly results from poor bike fit (particularly excessive reach or saddle-to-handlebar drop), weak core stabiliser muscles, and sustained flexion loading over long rides. The fix involves three parallel actions: a professional bike fit to optimise position, targeted core stability work twice per week, and gradual progression of ride duration rather than sudden increases. Most cycling-related back pain resolves within 4-8 weeks when all three factors are addressed simultaneously.

KEY TAKEAWAYS

Excessive reach or handlebar drop forces the lumbar spine into sustained flexion, which loads the posterior disc and facet joints — the most common mechanical cause of cycling back pain.
Core weakness allows the pelvis to rock excessively during pedalling, creating shear forces in the lower spine that accumulate over long rides.
A professional bike fit that shortens reach by 10-20mm or raises handlebars by 10-20mm resolves most position-related back pain within 2-4 weeks.
Stretching the hip flexors and hamstrings reduces the pelvic tilt that contributes to lumbar spine loading in the cycling position.

WHO THIS IS FOR

IS THIS YOU?

Cyclists with persistent lower back pain during or after rides

Your back aches during long rides, stiffens after riding, or has become a chronic issue that limits how far and how often you can ride.

Riders who are about to invest in a bike fit

You want to understand the relationship between bike position and back pain so you can have an informed conversation with your fitter.

THE ROADMAN VIEW

Lower back pain is the single most common complaint Anthony hears from the Roadman audience, and the frustrating thing is that it is almost always fixable. The problem is usually a combination of factors rather than a single cause, which is why people struggle to solve it on their own. They raise their handlebars and it helps a bit, but the pain does not go away entirely. Or they start doing planks but keep riding a bike that is 20mm too long in the reach. You have to address fit, strength, and flexibility together.

The most common pattern Anthony sees is a rider who bought a bike based on the manufacturer's size chart, has never had a professional fit, has a desk job that leaves their hip flexors tight and their core dormant, and then rides for 3-4 hours at the weekend. That combination produces back pain almost inevitably. A 60-90 minute bike fit and 15 minutes of core work four times a week usually resolves it. It is not complicated, but it does require doing all three things, not just one.

EXPERT EVIDENCE

WHAT THE EXPERTS SAY

Phil BurtFormer head of physiotherapy at British Cycling, bike fit specialist
Lower back pain accounts for roughly 60% of the overuse complaints I see in bike fit clinics. The most common cause is excessive saddle-to-handlebar drop combined with a reach that forces the rider to extend through the lumbar spine rather than the thoracic spine. Shortening the stem by 10-20mm and adding 10-15mm of spacers under the stem resolves the majority of cases. The remaining cases almost always involve core instability that allows pelvic rocking during pedalling.

PRACTICAL APPLICATION

DO THIS WEEK

Get a professional bike fit focused on back position
Tell the fitter that back pain is your primary concern. They should assess saddle height, saddle fore-aft, reach (stem length), handlebar drop, and saddle tilt. A modest reduction in reach (shorter stem) and increase in handlebar height (spacers or a higher-rise stem) is the most common fix. Expect the fit to take 60-90 minutes and cost 100-200 GBP.
Build a core stability routine of 15 minutes four times per week
Focus on anti-extension and anti-rotation exercises: planks (front and side, 3x30-60 seconds), dead bugs (3x10 each side), bird dogs (3x10 each side), and pallof press holds (3x20 seconds each side). These build the deep stabilisers that prevent pelvic rocking on the bike. Consistency matters more than intensity.
Stretch hip flexors and hamstrings daily
Tight hip flexors pull the pelvis into anterior tilt, increasing lumbar extension loading on the bike. Tight hamstrings do the opposite, pulling the pelvis into posterior tilt and rounding the lower back. A 5-minute daily routine of half-kneeling hip flexor stretches and standing hamstring stretches (30 seconds each side, twice) addresses both.

COMMON MISTAKES

WHAT CYCLISTS GET WRONG

MISTAKETrying to fix back pain by only adjusting the bike without addressing core strength.
FIXBike fit addresses the external load, but weak core muscles mean the spine absorbs forces it should not. Both must be addressed simultaneously for lasting relief. A perfect fit on a weak core still produces pain.
MISTAKECopying a professional rider's aggressive position.
FIXProfessional cyclists have years of progressive adaptation, exceptional core strength, and professional physiotherapy support. An amateur copying a pro position is likely to develop back pain within weeks. Your position should be based on your flexibility, strength, and riding goals — not someone else's.
MISTAKERiding through persistent back pain assuming it will toughen up.
FIXCycling back pain that does not improve within 2-3 weeks with position adjustments warrants professional assessment. Persistent pain can indicate disc irritation, facet joint dysfunction, or other conditions that require specific treatment. Early intervention prevents chronic issues.

FAQ

FREQUENTLY ASKED QUESTIONS

Should I raise my handlebars if my back hurts?

Raising handlebars is often part of the solution but rarely the complete fix. A 10-20mm increase in handlebar height reduces lumbar flexion and can provide immediate relief. However, if reach is also excessive or core stability is poor, raising the bars alone may not resolve the problem. A professional fit assessment considers all variables together.

Does saddle position affect lower back pain?

Yes, significantly. A saddle that is too high forces the pelvis to rock side-to-side, creating shear forces in the lower spine. A saddle tilted nose-down slides you forward, forcing you to support more weight on your hands and load the lower back. A level saddle at the correct height is the foundation of a back-friendly position.

Are recumbent bikes better for back pain?

Recumbent bikes eliminate the spinal flexion loading that causes most cycling back pain, making them an option for riders with chronic conditions. However, most cycling-related back pain can be resolved with proper fit and core work on a conventional bike. Recumbent bikes involve significant trade-offs in handling, visibility, and social riding compatibility.