Who gets itEmerging evidence
Numb feet or toes were 11.5% of the complaints of 1,505 riders at bike-fit services, and reviews of cycling's leg and foot injuries list foot numbness and pain under the ball of the foot (metatarsalgia). On a 6-day tour of 1,638 riders, foot blisters were among the commonest problems.
Burning feet on the bike is typical of long rides, hot days, hard efforts and long climbs, by riders' and fitters' accounts. We found no study of how often it happens, and none that followed riders with it.
Sources 1, 2, 3
Why feet go numb or burn on the bikeEmerging evidence
Pedalling loads the inner forefoot, the first metatarsal (the long bone behind the big toe) and the big toe most, a pattern set by the foot, shoe and pedal. The harder you push, the higher the pressure: in professional riders, the highest pressure under the foot was about 85% higher at 200 watts than at 100 watts, and changing cadence changed how the load was spread.
The small nerves to the toes run between the metatarsal heads under the ball of the foot, which is where the cleat usually sits. Pressure there, a shoe that squeezes the forefoot, and feet swelling on long or hot rides are the usual explanations for hot foot, but that is expert opinion: no study has measured the nerves in riders.
Stiff carbon soles raised peak forefoot pressure by 18% against plastic soles in one lab study, while carbon insoles didn't raise pressure in another. Clipless pedals produced higher, more spread-out pressures than toe clips in a small pilot study. We found no study of shoe width or strap tightness.
Sources 4, 5, 6, 7, 8
Cold feet: a problem with the blood supplyStrong evidence
In Raynaud's, blood stops flowing properly to the fingers and toes in the cold or with stress, so they change colour (white, then blue, then red as blood returns), with pain, numbness or pins and needles, for minutes to hours. The NHS advises keeping warm, avoiding sudden changes of temperature, regular exercise and not smoking.
For riders, Scleroderma & Raynaud's UK suggests warmer winter shoes, overshoes or oversocks, one warm pair of socks that doesn't make the shoe tight, keeping your core warm, getting inside quickly afterwards and not jumping straight into a hot shower. Chilblains are itchy, burning red or purple patches that appear a few hours after cold and usually clear up on their own, and the NHS says not to warm your feet on a radiator or under hot water. Frostbite needs 999 or A&E.
Sources 9, 10, 11, 12
When numb feet aren't the bikeStrong evidence
Peripheral neuropathy is damage to the nerves of the hands and feet, with numbness and tingling, burning, stabbing or shooting pain, poor balance or weakness that are usually there all the time, though they may come and go. Almost 1 in 10 people aged 55 or over in the UK have it, and diabetes is the most common cause. With diabetes, any new foot problem matters more, and the National Institute for Health and Care Excellence (NICE) asks for an ulcer, infection or a hot, swollen foot to reach a specialist foot service within 1 working day.
Leg pain on exercise that eases after a few minutes' rest can be peripheral arterial disease, and constant pain in the toes or forefoot at rest, ulcers or gangrene need prompt assessment by a vascular specialist. Numbness down the back of the leg into the foot with back or buttock pain points to sciatica. Pins and needles from pressure, by contrast, lasts a few minutes and stops once the weight is off.
Sources 13, 14, 15, 16, 17, 18, 19
When tests helpStrong evidence
Hot foot and Morton's neuroma are diagnosed by examination; our Morton's neuroma guide explains why scan findings can mislead. For numbness that lasts or is in both feet, a GP checks feeling, strength and reflexes and may arrange blood tests (for diabetes and vitamin B12), with nerve conduction tests and electromyography, which measure how well the nerves and muscles work, if needed. For circulation, the ankle brachial pressure index compares the blood pressure at the ankle and the arm.
Sources 20, 16
How it usually goesEmerging evidence
Pins and needles from pressure fades within minutes once the pressure is off, and in one case series of 21 riders, foot pain had eased after a cleat change within five rides. Morton's neuroma often gets worse over time, chilblains usually clear up on their own, and neuropathy depends on its cause: some cases improve, and in some people the damage is permanent. No one can promise a date.
Sources 19, 21, 22, 11, 13