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It usually starts quietly. If you are looking for a professional bike fit Brisbane cyclists trust, that niggle at the front of the knee an hour into the Saturday bunch ride is where it begins. A dull ache across the lower back that shows up on every long climb and hangs around until Monday. You stretch, you take a few days off, and the moment you build the kays back up, it returns. Here is the part most riders miss: cycling is one of the few sports where your position is fixed to a machine, so if the machine does not fit you, your body pays the bill on every single pedal stroke. At a cadence of 90, that bill arrives around 5,400 times an hour.
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Published Oct 30, 2026
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Cycling injuries are rarely dramatic, but riding without a proper bike fit Brisbane setup often leads to recurring issues. Instead of a single bad moment, they are almost always overuse injuries: small, repeated loads applied thousands of times in exactly the same position. Research on professional road cyclists by Clarsen and colleagues found that 58 percent had experienced lower back pain in the previous 12 months and 36 percent had experienced anterior knee pain, making these comfortably the two most common overuse problems on the bike. Lower back complaints made up 45 percent of all registered overuse injuries, and knee complaints 23 percent.
Recreational riders are not spared. If anything, we see it more often in everyday cyclists, because they combine long hours in the saddle with desk jobs, less recovery, and bikes that were set up in five minutes in a shop years ago (or never set up at all).
The knee is the classic victim of a poor fit. A saddle that sits too low forces the knee into deeper bend at the top of the stroke, which drives up compressive load behind the kneecap and irritates the patellofemoral joint and quadriceps tendon. A saddle that is too high or too far back does the opposite, overstretching the hamstrings and loading the back of the knee, and often makes the pelvis rock side to side, which the lower back then has to control. Reach and handlebar drop matter too: a cockpit that is too long or too low locks the lumbar spine into sustained flexion for hours at a time, and tired trunk muscles eventually stop protecting it.
In the riders we assess, cycling knee pain and back pain almost always trace back to a combination of these factors:
Sophie Dyer, physiotherapist at PEAK and a keen triathlete, spends plenty of her own week in the saddle, and plenty of her clinic hours undoing the damage of poor positions.
“The pattern I see over and over is a rider who has done everything right except look at the bike,” Sophie says. “They have rested, stretched, foam rolled, sometimes even bought new shoes, and the pain keeps coming back the moment they ride. When we finally put them on their own bike and watch them pedal, the cause is right there: a saddle two centimetres too low, or a reach so long their pelvis tips forward and their back does all the work. The best part of a bike fit is that the fix is often immediate. You change the position, the load changes on the very next pedal stroke. Then we build the strength so the body can hold that better position for four hours, not just four minutes.”
Bike-related pain is a perfect example of why we structure care around Pain, Prevention and Performance. First, we settle the pain: identifying the irritated structure, adjusting the position or training load that is aggravating it, and using hands-on treatment and targeted exercise to calm things down so you can keep riding wherever possible. Rest alone rarely fixes a position problem; the pain simply waits for your next ride.
Then we work on prevention. A full cycling setup assessment looks at you before it looks at the bike: hip and knee control, trunk strength, hamstring and hip flexor length, and any old injuries that shape how you sit in the saddle. Only then do we adjust the bike to match your body, rather than forcing your body to match the bike.
Finally, performance. A well-fitted position is not just safer, it is faster: better power transfer, less energy wasted on rocking and compensating, and more comfort deep into a long ride or race. Whether your goal is a gran fondo, a triathlon, or simply keeping up with the Saturday bunch, the position that protects you is the same one that helps you perform.
If your knee or back is complaining on the bike right now, here is where to start:
Cut ride length or intensity to a level that does not flare the pain rather than stopping completely. Most cycling overuse injuries tolerate modified riding well.
You can book directly with our team, no GP referral required. Our professional bike fitting and cycling setup assessment combines a physical assessment of how your body moves with a detailed look at your position on your own bike, so the changes we make address the cause of your pain rather than just the symptoms. From there, our physiotherapists build the strength, mobility and load plan that keeps you riding.
Knee pain and back pain have ended more riding seasons than any crash, and most of it is preventable. If your body is protesting every time you clip in, do not wait for it to become the reason you stop riding. Book a cycling setup assessment at PEAK and let us help you experience what you never felt possible on the bike.
A cockpit that is too long or too low locks your lumbar spine into sustained flexion for hours. When fatigue sets in, your trunk muscles stop protecting your spine, forcing your lower back to overwork on every climb.
Yes. A saddle set too low forces a deep bend at the top of the stroke, driving up compressive load behind the kneecap and irritating the patellofemoral joint and quadriceps tendon.
No. Complete rest is rarely necessary. Cutting back ride length or intensity to a non-painful level allows you to keep riding while addressing the root cause with a professional setup assessment.
At PEAK, it combines a physical screening of your mobility, core strength, and movement patterns with a detailed analysis of your position directly on your own bicycle.
From Prevention to Performance. Start Today!