Hip Pain While Mountain Biking: What's Actually Happening and How to Test Yourself

By Chris Ricard, DPT · Explore Physical Therapy · North Kingstown, RI

Mountain biking runs your hip through the same arc thousands of times per ride. Pedal stroke after pedal stroke, the hip moves from deep flexion at the top down through extension at the bottom, repeated across hours of trail and climb. Most riders never think about it until something in the front or side of the hip starts complaining.

When it does, the instinct is usually to blame the bike. Saddle too high, saddle too far back, wrong crank length. Bike fit matters, but it's not what this article is about. What's more interesting, and more often the actual problem, is what the body is doing on the bike. Specifically, what's happening at the pelvis and hip that makes some riders develop pain and others don't, regardless of how the bike is set up.

The Pedal Stroke Asks More of Your Hip Than You Might Think

Here's something most riders don't consider: the pedal stroke isn't just your hip bending and straightening. As the hip moves toward full flexion at the top of the stroke, the thigh bone also needs to rotate, a combination of bending and rotating, to navigate that range without the ball of the hip joint compressing against the socket.

When that rotation is available, the hip moves through the top of the stroke cleanly. When it isn't, the joint hits a wall at the top of every pedal revolution. Multiply that by thousands of strokes per ride and the structures around the hip, the tendons, the joint capsule, the soft tissue at the front of the hip, accumulate load they may not be prepared to handle repetitively.

This is the story behind a significant portion of hip pain in mountain bikers. Not saddle height. A hip that doesn't have the rotation available to move through its own range comfortably.

The Pelvis Matters Just as Much as the Hip

The hip doesn't work in isolation. It connects directly to the pelvis, and how the pelvis is positioned during the pedal stroke determines how much room the hip has to work with.

What I often see is that riders who have hip pain, don't have access to a full arc of motion at the pelvis. Often they run out of hip flexion room at around 90 degrees, rather than the expected 120 degrees. The rider who has full pelvic and femoral (hip) range of motion will often be far more comfortable with long rides.

Research on mountain biking confirms that loss of lumbopelvic control during sustained climbing is a consistent driver of both hip and lower back loading. It's not a flexibility problem in isolation. It can also be a motor control problem that flexibility work alone won't fully solve.

Two Self-Tests to See Where Your Restriction Is

Before diving into treatment, here are two screens you can do at home that map directly to what I check in clinic. They don't require any equipment and they'll tell you a lot about what's driving your pain on the bike.

Test 1: Deep squat

Great depth from Myles

Stand with feet roughly shoulder-width apart, toes turned out slightly. Squat down as deep as you comfortably can and hold for a few seconds. The goal is to break parallel, thighs below horizontal, without your heels lifting, your lower back rounding aggressively, or sharp discomfort in the front of either hip.

If you can't get below parallel, or if one hip feels significantly more restricted or painful than the other in the deep position, that's a meaningful signal. The deep squat challenges hip flexion, rotation, and ankle mobility simultaneously in a position that shares a lot with the top of the pedal stroke. Anterior hip pain or a hard end-range feeling at the front of the hip during this test is a particularly useful finding. It suggests the hip is running out of room in flexion, which is exactly what happens at the top of every pedal revolution on the bike.

Test 2: 90-90 shinbox hip rotation

Sit on the floor and position both legs at roughly 90 degree angles, one leg in front of you

Limited Left hip IR in shinbox position

with the shin parallel to your body, the other out to the side with the shin perpendicular. This is sometimes called the 90-90 or shinbox position.

From here, try to keep your trunk upright. You may notice that it's difficult to stay tall and that you want to fall to one side, usually away from the back leg. Notice whether one direction feels significantly more restricted or uncomfortable than the other.

What you're assessing is hip rotation, specifically the combination of internal and external rotation that the hip needs to navigate the pedal stroke cleanly. A restriction in the back hip usually indicates a loss of internal rotation at that hip, which is a common finding in mountain bikers with anterior hip pain. That's the direction of rotation the hip needs most at the top of the stroke, and when it's limited, the joint compensates in ways that irritate the surrounding structures.

If the deep squat flags anterior hip tightness and the shinbox test shows limited internal rotation on the same side as your symptoms, that's a consistent picture that explains a lot about what's happening on the bike.

What to Do About It

The goal is to restore the hip's ability to flex and rotate comfortably through the range the pedal stroke requires, and to give the pelvis the control to create space for that movement to happen.

Restore hip rotation. This can be tricky. Some limitations in internal rotation are due to the pelvis tipping too far forwards and stealing the rotational range of motion and some limitations are from a lack of flexibility at the backside of the hip (posterior hip capsule and rotators).

Try hinging exercises.  Hinging exercises like deadlifts or kickstand RDL's can be a great way to lengthen the posterior hip and allow for better internal rotation of the femur.l

Pelvic control under load. Dead bug exercises, while often mis-prescribed in my opinion can be helpful for developing pelvic control while dissociating a limb (moving one segment but not the other). Hip hinge patterns, and single-leg work that specifically challenges your ability to control pelvic position while the hip is working hard are the bridge between having mobility and being able to use it on the bike. The goal isn't to brace into a fixed position. It's building the ability to dynamically control and tip the pelvis as the hip moves through its range, which is what actually changes how you ride.

Reduce ride volume temporarily. A reactive hip that's irritated from thousands of repetitions daily won't respond well to loading work if the total dose stays too high. Pulling back ride volume in the early weeks, not stopping entirely, just reducing, lets the hip settle enough to actually adapt to the targeted work you're doing off the bike.

When to Get It Properly Evaluated

Hip pain in cyclists that doesn't improve meaningfully with a few weeks of targeted mobility and load management warrants a closer look. A few presentations worth getting evaluated promptly:

• Pain with a sharp, pinching, or catching quality at the top of the pedal stroke, which can indicate labral involvement or femoroacetabular impingement that won't respond to soft tissue work alone

• Clicking, clunking, or snapping in or around the hip during the stroke

• Buttock pain that travels down the leg

• Pain that worsens with rides rather than staying consistent or gradually improving

• Symptoms present for more than 6-8 weeks without clear progress

The hip has a meaningful differential in cyclists. Getting the right diagnosis before committing to a loading program saves a lot of wasted months.

If you're a mountain biker in North Kingstown or South County and hip pain is getting between you and the trail, you can book a free discovery call here.

Frequently Asked Questions

Why does my hip hurt specifically at the top of the pedal stroke? The top of the stroke is where your hip is at maximum flexion and where the demand for rotation through that flexion is highest. If your hip doesn't have comfortable rotation available in the deep flexion position, which the 90-90 shinbox test checks, the joint runs into its own wall at this point in every pedal revolution. The surrounding soft tissues absorb that repeated compression and eventually become painful.

Is hip pain on the bike always a fitting problem? Not usually. Bike geometry influences how much flexion the pedal stroke demands, but the more common issue is that the hip and pelvis lack the mobility and control to manage that range comfortably. Two riders on identical bikes will have very different hip experiences depending on their available rotation and pelvic control. Adjusting the bike without addressing those underlying factors typically provides limited and temporary relief.

What does the deep squat test tell me about my hip pain? The deep squat puts the hip into a range of flexion and rotation similar to the top of the pedal stroke in a load-bearing position. Pain or a hard restriction at the front of the hip during a deep squat is a reliable indicator that the hip is running out of room in that direction, which is exactly what happens on the bike. It's a simple screen that often maps closely to what I find in a clinical assessment.

Why does hip pain get worse on long climbs? Sustained climbing demands continuous, high-force hip flexion under fatigue. As the ride progresses and pelvic control degrades, the hip loses the dynamic anterior tilt that creates room for clean movement. The combination of reduced pelvic control and thousands of repetitions in a compressed range is why long climbs tend to be the most provocative part of a ride for this type of pain.

Can I keep riding while dealing with hip pain? Usually with modification. Reducing total volume, shortening climb intervals, and doing targeted hip rotation and pelvic control work between rides often allows you to stay on the bike while the underlying mechanics are addressed. Whether to continue and at what intensity depends on how reactive the hip is and whether symptoms are progressing.

Chris Ricard is a DPT and owner of Explore Physical Therapy in North Kingstown, RI. He works with mountain bikers, trail runners, climbers, surfers, and outdoor athletes across South County and Rhode Island. If hip pain is getting between you and the trail, book a free discovery call.