AI quick summary
- Start saddle height with the heel method, then refine by how your knees and hips feel over several rides.
- Put cleat fore/aft under the ball of the foot; chase knee pain with float and tiny angle changes, not big ones.
- A fit is right when it stops feeling like anything — give each change a few rides before adjusting again.
/ 01
Why fit beats every upgrade
A bike that fits lets you ride longer, harder, and more often. No wheelset or groupset does that. Most 'I just don't enjoy cycling' problems are fit problems wearing a costume.
/ 02
What you need before you start
A way to hold the bike upright and level (a trainer is ideal; a doorway works), a spirit level, a plumb-line app or a string with a small weight, Allen keys, and patience. [INSERT: photo of your setup]
/ 03
Saddle height: start with the heel method
In cycling shoes, place your heel on the pedal at the bottom of the stroke with the crank in line with the seat tube. Your leg should be straight but not locked. Clip in and pedal — at the right height your hips stay quiet. If your hips rock to reach the bottom, drop the saddle a few millimetres.
/ 04
The knee-over-pedal-spindle check
With the cranks horizontal, hang a plumb line from the front of your forward kneecap. It should pass near the pedal axle. Move the saddle fore or aft to get close — small moves, 2–3 mm at a time.
/ 05
Signs your saddle height is wrong
Too high: rocking hips, hamstring or lower-back strain, reaching for the bottom of the stroke. Too low: front-of-knee pain, feeling cramped, knees pointing outward. [INSERT: your own experience and what you fixed]
/ 06
Saddle fore/aft and tilt
Fore/aft sets your knee load (see the KOPS check above). For tilt, start level — tip the nose down a few degrees only if numbness persists, not as a default.
/ 07
Cleat position: fore/aft
The cleat's pivot should sit under the ball of your foot — the head of the first metatarsal. A common error is mounting it too far forward, which strains the calf and achilles. [INSERT: measurement photo from your own shoe]
/ 08
Cleat angle and float
Set the angle so your foot's natural stance is respected — most riders need a little heel-in or heel-out, not dead straight. Use a few degrees of float if your knees are sensitive, and change angles in tiny increments. Knee pain that tracks the kneecap outward usually points to too much internal rotation.
/ 09
When is the fit right?
When nothing hurts and you stop thinking about it. Give each change a few rides before adjusting again; chasing perfection in a single session usually leaves you worse off.
/ 10
When to pay for a pro fit
Persistent pain that doesn't resolve after two or three weeks of small changes, a new bike you can't get comfortable on, or a recurring injury. A good fitter measures things that guessing can't.