"Pacer: what a ride will take, before you ride it"

A route tells you how far and how much climbing. It does not tell you how long you will be out, how hard to ride the third climb so the fifth is still there, or how much to carry. Pacer works that out before you leave.

It takes a saved route, your FTP, your weight and your bike, and rides the route in a physics model: the power you put out against gravity, rolling resistance and air, every 30 m of the way, on heights read from the ground along the whole line. What comes back is a riding time, a power target for every climb, the energy, the food and water, and, for a ride with a card, when you reach each control.

The route here is a 104 km loop from Freiburg over the Schauinsland and the Feldberg, ridden by a rider with an FTP of 250 W who weighs 75 kg.

1. Start with a route

The TourKit Planner with a 104 km loop from Freiburg over the Schauinsland and the Feldberg: the route on the map, and under it 104.0 km, 4 h 37 m of riding at FTP 250 W and 75 kg, 1,923 m of climbing, and the profile with its climbs marked
The loop in the Planner, its climbs marked on the profile

Plan it in the Planner, or import a GPX, and save it. An imported route takes its heights from the ground too, not from the file, so a climb drawn by a barometer on someone else's ride does not end up in your plan.

New to the Planner? Your first route in the Planner takes under two minutes.

2. Open it in Pacer

The Routes page with the Black Forest loop listed (Loop, 104 km, 1,922 m, 4:37, Load 234) and its menu open on Open in Pacer
Routes, with the loop's menu open

In Routes, open the route's menu and choose Open in Pacer. You can also open Pacer and choose a route there.

3. Read the plan

Pacer for the Black Forest loop: an estimated riding time of 4 h 15 m to 4 h 59 m, the climbing effort at 83% of FTP with the note that it opened there for about 5 hours of riding, the rider and bike (road bike, FTP 250, 75 kg), and tiles for energy (2,399 kJ), Load 234, Norm Power 178 W, Intensity 0.71, 22.5 km/h and variability 1.23, with resupply and fuelling beside them
The top of the plan: riding time, effort, rider and bike, and what the ride costs

At the top is the riding time, as a band: 4 h 15 m to 4 h 59 m. It is a band because wind and your own riding position can move your time by more than its width, and a single number would claim more than the model knows.

Pacer opens at an effort for a ride this long. Effort here is how hard you ride the climbs, as a share of your FTP, and everything else scales with it. For about five hours that is 83%, which is 208 W on every climb. The longer the ride, the lower Pacer starts, because the lower the effort you can hold. Move the slider to your own.

Beside it is what the ride costs:

Under Rider & bike, change the bike, your FTP or your weight, and the plan follows. Altitude adjusts your power for a ride high enough to cost you some, acclimatised or not.

4. Choose how you set the effort

By finish time, set to 4 h 30 m: Pacer reads "needs 87% of FTP", with the energy (2,423 kJ), Load 246, Norm Power 185 W and Intensity 0.74 that riding time asks for
By finish time: 4 h 30 m needs 87% of FTP

Three tabs ask the same question three ways:

Every figure in this post is at Even effort, the switch under the tabs: every climb at your effort, easing off between them.

5. Ride every climb to its number

The plan on the map, coloured by the power the plan asks for, beside the climbs table: twelve climbs with where each starts, its length, gradient, gain, target power (about 208 W), time and VAM; the first is 5.8 km at 9.6%, ridden in 39 min 54 s
The plan on the map, and the climbs table beside it

The map colours the route by the power the plan asks for. Beside it, the climbs table gives each climb where it starts, its length, gradient and gain, the power to ride it at, the time it takes and the VAM. This loop has twelve. The first, 14.4 km in, is 5.8 km at 9.6% and gains 554 m: 39 min 54 s at 208 W. Between the climbs the plan eases toward 149 W, and on a descent steeper than 2% you coast.

A climb here is at least 3% for 400 m and gains at least 25 m. Change those and the table follows.

That number on each climb is the point of the plan. Ride the long one at 208 W and you have the legs the rest of the day assumes you have.

6. See where the time goes

Where the time goes on the Black Forest loop: distance, share of the route, time, share of the day and average power for each kind of terrain, from descents steeper than 6% to climbs over 12%; the 5.9 km of climbing at 9 to 12% take 44 minutes, 16% of the day
Where the time goes, by gradient

Where the time goes sorts the route by gradient, from steep descents to climbs over 12%, and sets the share of the distance beside the share of the day. On this loop, 5.9 km at 9 to 12% is under 6% of the distance and takes 44 minutes, 16% of the riding time. That is where a gear you do not have costs you.

What it asks of you then sets the hardest minute, five, ten and twenty minutes and the hardest hour of the plan beside your best power over the last 42 days, with your all-time best next to it, so you can see whether the plan is one you have ridden lately or one you are planning to grow into.

7. Pace it by the clock

Pacer's clock for a 615 km brevet starting Saturday 06:00: each control's distance, arrival time and early-to-late range, elapsed time, stop (45 minutes, and 4 hours at Fougères), departure, closing time from the card and time in hand, finishing Sunday 15:24 with between 2 h 31 m and 5 h 06 m in hand
By the clock, on the 615 km brevet from the second tutorial

When a ride has a start time and points you have to reach, By the clock turns the plan into a timetable. Mark your controls on the route, set a start, give each stop its length, and type each control's closing time from your card. Pacer gives you when you arrive, how long you stop, when you leave, and how much time you have in hand, counted from the slow end of the band, so it is what you keep on a bad day.

On a long ride, Effort falls lowers your effort for every 10 hours of riding, so the later controls come later. On ten riders' Paris-Brest-Paris it fell about 6% for every 10 hours they rode.

This one is a 615 km brevet with a sleep at Fougères, from Plan a 600 km brevet and pace it to its controls. The same clock works for a sportive's cut-offs, a ferry or the last train home.

8. Save it and take it with you

Pace Plans with the saved plan for the Black Forest loop: road bike, 83% effort, 4 h 37 m, Load 234, made at 250 W and 75 kg
Pace Plans keeps every plan with the rider and bike it was made for

Save this plan keeps it with the rider, bike, effort and altitude it was made for, so a plan made at last spring's FTP still says so. Pace Plans lists them, and opening one puts you back where you left it.

The export choices for a saved plan: FIT course plus pace plan (the route with your climb targets, fuelling and water stops as course points), FIT course, GPX or TCX
Export: the course with the plan on it, or the route on its own

Export takes it to your bike computer. FIT course plus pace plan puts your climb targets, fuelling and water stops on the course as course points. A plain FIT course, GPX or TCX carries the route on its own.

When the ride is weeks away, Build a training plan turns its date and efforts into a training plan for it.

What Pacer does not know yet

Pacer does not model wind. On a windy day your time moves, and the band says so rather than hiding it.

Your own aerodynamics start from the defaults for your bike, a CdA of 0.32 and a Crr of 0.005 on a road bike, until you choose Fit from my rides under Your aerodynamics. That measures them from steady solo stretches of your own rides. A wheel you were sitting on reads as less drag, so it uses the stretches where you were alone.

If you have ridden the route before, What it has cost you before puts your real times on it beside the plan's: elapsed time, stops included, with the weather you had in them. It is a check you can make, not a target to chase.

Try it free at tourk.it


Captured in TourKit on a demo account with an FTP of 250 W and a weight of 75 kg. Pacer's times are a model of your riding, not a promise. Map data © OpenStreetMap contributors. Heights in Baden-Württemberg: LGL, www.lgl-bw.de, dl-de/by-2-0, modified. Heights in France: IGN, RGE ALTI, Licence Ouverte 2.0, last updated 26 November 2024.