Overview Bikes Compare Pricing How it works About

BikeViewer is
the geometry chart
you can sit on.

See your own body on any bike before you buy or change it.

Open BikeViewer How it works

Runs in the browser · Nothing to install

Built for riders, fitters and shops.

Used at

Click the bike or the rider, then drag a handle. Every angle updates as you move it.

Hundreds of frames from the makers' own charts.

No install, no account to see your fit.

One link for the whole fit, open to anyone.

Compare bikes, frames and fits,
one rider on all of them.

Up to four bikes on one rider, every number measured against the bike you pick.

Compare

Click a column in the table to put the rider on that bike.

Fit, scored on the rider,
not read off a chart.

Six joints scored against a fitter's range, updating as you move the saddle, stem or bars.

Check a fit

Power and forces,
from the body on the bike.

Watts to hold a speed from the rider's frontal area, with drag and wheel loads drawn on the model.Sea level and still air, so best for comparing setups.

Ride the numbers

Change the hand position or wheels and the watts update.

The wind tunnel,
a wheel to follow, and the wind.

Sit on a second rider's wheel and see what it saves, then turn the wind.

Try the wind tunnel

Less drag

–

Saved at 40km/h

–

Drag area –

Wind tunnel

Gap–Wind–

Drafting at 40km/h, pressure painted on both riders

Keep scrolling to close the gap, then turn the wind

Muscle map,
seated or sprinting, watch the muscles.

Every muscle that pedals, lit as it works, from a low saddle to a sprint.

Try the muscle map

Saddle, from a fitted height

–

Knee at the bottom

–

Muscle map

Quads–

Hamstrings–

Glutes–

Calves–

Share of work in each turn, from a model, not EMG

Saddle–

Rider

Keep scrolling to raise the saddle, then sprint

Keep what you work out

Saved views

Every bike, the rider and the camera, exactly as you left them. Views →

Profiles and libraries

Riders and frames you reuse on any bike, synced on Pro. Plans →

Exports

Free share links, PDF and CSV on Pro, DXF drawings on Max and Team. Files →

Riders, fitters and shops

See your body on a frame before you order the size, and on your own bike before anyone cuts a steerer.

Open BikeViewer

For riders

A rider built from your height

Any frame in the library

Six joints against a fitter's range

Your height and a frame. That is all it asks.

See where your body ends up before you order the size, change the stem or cut the steerer.

Open BikeViewer See plans

Runs in the browser · Nothing to install

How the numbers are worked out →

Try any bike, any size, any stem, on a rider built from your measurements.

Product

Open BikeViewer Overview Bikes Compare Pricing How it works

Company

About Contact

Legal

Overview Bikes Compare Pricing How it works About

Open BikeViewer

BikeViewer is
the geometry chart
you can sit on.

See your own body on any bike before you buy or change it.

Open BikeViewer How it works

Runs in the browser · Nothing to install

Built for riders, fitters and shops.

Used at

Click the bike or the rider, then drag a handle. Every angle updates as you move it.

Hundreds of frames from the makers' own charts.

No install, no account to see your fit.

One link for the whole fit, open to anyone.

Compare bikes, frames and fits,
one rider on all of them.

Up to four bikes on one rider, every number measured against the bike you pick.

Compare

Click a column in the table to put the rider on that bike.

Fit, scored on the rider,
not read off a chart.

Six joints scored against a fitter's range, updating as you move the saddle, stem or bars.

Check a fit

Power and forces,
from the body on the bike.

Watts to hold a speed from the rider's frontal area, with drag and wheel loads drawn on the model.Sea level and still air, so best for comparing setups.

Ride the numbers

Change the hand position or wheels and the watts update.

The wind tunnel,
a wheel to follow, and the wind.

Sit on a second rider's wheel and see what it saves, then turn the wind.

Try the wind tunnel

Less drag

–

Saved at 40km/h

–

Drag area –

Wind tunnel

Gap–Wind–

Drafting at 40km/h, pressure painted on both riders

Keep scrolling to close the gap, then turn the wind

Muscle map,
seated or sprinting, watch the muscles.

Every muscle that pedals, lit as it works, from a low saddle to a sprint.

Try the muscle map

Saddle, from a fitted height

–

Knee at the bottom

–

Muscle map

Quads–

Hamstrings–

Glutes–

Calves–

Share of work in each turn, from a model, not EMG

Saddle–

Rider

Keep scrolling to raise the saddle, then sprint

Keep what you work out

Saved views

Every bike, the rider and the camera, exactly as you left them. Views →

Profiles and libraries

Riders and frames you reuse on any bike, synced on Pro. Plans →

Exports

Free share links, PDF and CSV on Pro, DXF drawings on Max and Team. Files →

Riders, fitters and shops

See your body on a frame before you order the size, and on your own bike before anyone cuts a steerer.

Open BikeViewer

For riders

A rider built from your height

Any frame in the library

Six joints against a fitter's range

Your height and a frame. That is all it asks.

See where your body ends up before you order the size, change the stem or cut the steerer.

Open BikeViewer See plans

Runs in the browser · Nothing to install

How the numbers are worked out →

Try any bike, any size, any stem, on a rider built from your measurements.

Product

Open BikeViewer Overview Bikes Compare Pricing How it works

Company

About Contact

Legal

BikeViewer isthe geometry chartyou can sit on.

Compare bikes, frames and fits,one rider on all of them.

Fit, scored on the rider,not read off a chart.

Power and forces,from the body on the bike.

The wind tunnel,a wheel to follow, and the wind.

Muscle map,seated or sprinting, watch the muscles.

Keep what you work out

Riders, fitters and shops

Your height and a frame. That is all it asks.

BikeViewer isthe geometry chartyou can sit on.

Compare bikes, frames and fits,one rider on all of them.

Fit, scored on the rider,not read off a chart.

Power and forces,from the body on the bike.

The wind tunnel,a wheel to follow, and the wind.

Muscle map,seated or sprinting, watch the muscles.

Keep what you work out

Riders, fitters and shops

Your height and a frame. That is all it asks.

BikeViewer is
the geometry chart
you can sit on.

Compare bikes, frames and fits,
one rider on all of them.

Fit, scored on the rider,
not read off a chart.

Power and forces,
from the body on the bike.

The wind tunnel,
a wheel to follow, and the wind.

Muscle map,
seated or sprinting, watch the muscles.

BikeViewer is
the geometry chart
you can sit on.

Compare bikes, frames and fits,
one rider on all of them.

Fit, scored on the rider,
not read off a chart.

Power and forces,
from the body on the bike.

The wind tunnel,
a wheel to follow, and the wind.

Muscle map,
seated or sprinting, watch the muscles.