What is CdA?
CdA describes how much aerodynamic drag the rider and bike create. A lower value generally means a more aerodynamic position.
ARVENTO · Ride Intelligence / Tool 01
GPX Route
Power Analysis
A GPX route power analysis estimates how much cycling power may be required across different parts of a route. ARVENTO reads distance, elevation and gradient from the GPX, combines them with rider and bike inputs, and produces a segment-by-segment power and pace estimate.
See the effort before the road.
Your route plan starts here
Upload a GPX, confirm your setup, then ARVENTO will translate the route into a practical power and pace plan.
Route summary
路線摘要
Distance—
FTP—
Main climb—
Max average grade—
Elevation gain—Estimated ride time—Average planned power—Route difficulty—Reference speed—
Measured GPX data
Route elevation profile
Elevation is smoothed with a five-point moving median; small vertical changes under 1 m are ignored when accumulating ascent.
Ride pacing overview
路線配瓦策略 Power Pacing Plan
根據你的 FTP 與路線地形，告訴你每一段該踩多少瓦。
展開詳細分析資料 Advanced Details
| Segment | Distance | Grade | Ascent | Target power | %FTP | Estimated speed | Segment time | Cumulative | Note |
|---|
Model limits
Why your real ride may differ
This is a route model, not a guarantee. The prediction estimates the physical demand of the GPX under the assumptions shown above.
- Wind
- Road surface
- Corners and braking
- Traffic and intersections
- Stops
- Drafting / group riding
- Tire pressure
- Temperature
- Rider fatigue
- Position changes
Descending speed is model-limited. Real speed depends on corners, road surface, traffic, braking, weather and rider judgment. Wind is not included in this estimate.
Assumptions, explained
The physics behind the presets
What is Crr?
Crr describes rolling resistance between the tires and road surface. Tire choice, pressure and pavement quality can affect it.
Most riders do not know measured CdA or Crr values. ARVENTO therefore starts with practical riding and road presets.
Estimate my FTP · Coming later
Quick answers
GPX power analysis FAQ
What is GPX route power analysis?
It estimates cycling effort across a route by combining GPX distance, elevation and gradient with rider, bike and power inputs.
Can a GPX file predict cycling power?
A GPX can support a model estimate when it contains usable elevation, but it cannot measure actual power or account for every road condition.
How does gradient affect cycling power?
Climbing adds gravitational resistance, while descending reduces it. Steeper gradients change the speed possible at a given power.
How do I estimate speed from cycling power?
A physics model balances wheel power against aerodynamic drag, rolling resistance and gravity to estimate speed.
Do I need to know my CdA?
No. A practical riding-position preset is sufficient for planning; measured personal CdA would improve accuracy.
What is Crr in cycling?
Crr is the rolling-resistance coefficient between the tires and road. Tires, pressure and pavement all affect it.
Why does predicted speed differ from my real ride?
Wind, corners, braking, traffic, stops, drafting, fatigue, weather and position changes are not fully represented by a route model.
Does wind affect GPX power prediction?
Yes. Wind can materially change aerodynamic demand, but this MVP assumes zero wind.
Is FTP important for route pacing?
FTP provides a useful reference for sustainable pacing, but it is not a target to hold for an entire route.
Can I use a GPX route to plan climbing power?
Yes, when the GPX has usable elevation. Treat the result as a planning range rather than a guarantee.
Can I estimate ride time from a GPX file?
Yes. Distance, elevation, rider inputs and model assumptions can produce a useful range, but stops and weather can change the result.
Is my GPX uploaded to a server?
No. This tool reads the GPX locally in your browser and does not upload it.