Cyclist at Arena Pruszków velodrome during an aerofitting session
Alone in Drag

Aerofitting

Aerodynamic testing at the Arena Pruszków velodrome. Real CdA data, measurable watt savings, a competitive edge from the start line.

480+ aerofitting sessions
2 Olympic medals
Top 10 Ironman World Championships
7% mean CdA reduction across 400+ reported sessions

Four steps to a faster ride

01

Sign up

Send the form; it does not commit you. Track dates open roughly once a month, 3–4 weeks ahead. Give us your race date and we schedule before it.

02

Preparation

After confirmation, send photos of your bike and information about your race schedule. We'll prepare the right equipment and define the session goal.

03

Track or wind-tunnel session

A session at the Arena Pruszków velodrome or in a wind tunnel, depending on the goal. Timing and protocol depend on the chosen format. We measure every change as we go. We can adjust the bike on site and check the effect immediately.

04

Report

A detailed report with results for every configuration tested, CdA values, and recommendations tailored to your race distance.

Data that changes results

-13%
CdA reduction

2025 season, PZTri national team: measured on the Arena Pruszków track.

Maciej Bruździak — World Triathlon #46

Work on position, helmet and wheels ahead of the 2025 season lowered CdA by 13%. In Korea Bruzdziak rode less power than in Bahrain and took 3rd at the World Cup.

Everything you need

Arena Pruszków velodrome

The track to ourselves: no wind, no other riders on the boards.

Real-time analysis

CdA and watts saved after every run. You see the effect of each change immediately.

On-site mechanic

A mechanic makes the changes on site: swaps wheels, adjusts the position, fits extensions and risers.

Test equipment

Aero helmets (37 models), SaBRe VI.V, VIII and Disc wheels, extensions, risers.

Results report

A detailed post-session report with results for every configuration tested, CdA values, and recommendations.

480+ sessions of experience

Since 2021: the PZTri national team, the Long Distance Team, two Olympic medallists and amateurs before their first Ironman.

Try before you buy

37
aero helmets
Specialized · Kask · Met · POC · Giro · Oakley · ABUS · SCOTT · HJC...
Specialized: Evade III (S, M), TT 5 (S)
Kask: Bambino Pro Evo Light (M), Mistral (M, L), Bambino (M), Beluga (M), Utopia (L)
Endura: D2Z Aeroswitch (M/L)
Met: Drone (M, L), Drone II, Codatronca (M, L)
POC: Procen (L), Tempor (L/XL)
Giro: Aerohead (M), Aerohead Ultimate (M), Aerohead II (M)
Lazer: Volante (M)
SweetProtection: Tucker (L), Redeemer V2i (L)
Ekoi: Veloce (M), PURE AERO (M)
Uvex: Race 8 (L)
HJC: AddWatt 1.5 (S)
Van Rysel: Xcr (L)
Rudy Project: Wing Dream (L)
Giant: Rivet TT (L)
ABUS: TimeShifter TT (L), GameChanger 2.0 MIPS (M)
SCOTT: Split MIPS (S/M)
Oakley: Velo TT (S/M), Velo Mach MIPS (M), Velo Stelvio Pro (M)
3
SaBRe wheel models
SaBRe VI.V — 60/50mm wheelset
SaBRe VIII — 88mm front
SaBRe Disc — full disc rear
Light SaBRe Disc — 910g rear
SaBRe VI.V SaBRe VIII SaBRe Disc
SaBRe VI.V: 60mm/50mm, 1386g, TRiPEAK G5 Ceramic, Soul Kozak SP 2.0
SaBRe VIII: 88mm, 790g, TRiPEAK G5 Ceramic, Pillar Wing 20
SaBRe Disc: Full disc, 1050g, Toray T700+T800 carbon
Light SaBRe Disc: Full disc, 910g, TRiPEAK G5 Ceramic
SaBRe Wheels →
30+
aero accessories
FastTT · TriRig · Wove · Rule28 · Fusion · Huub · Nopinz...
Aero bars: FastTT 2.0 Triathlon (S/M/L), FastTT TT3 Time Trial, FastTT Adapters, FastTT Angle Riser / Extended, FastTT Tilt Adapter for Speedmax
Saddles: Wove M8, Wove V8, Wove Mags
Arm cups: TriRig Open Back, TriRig Closed Back, TriRig Open Back Ultimate Evo, TriRig Closed Back Ultimate Evo
BTA & Bottles: FastTT BTA Towers, FastTT Adjustable BTA Adapter, FastTT Tri BTA Bottle Aero Cone, TriRig BTA Elevator, TriRig Hydra Carbon Aero Bottle, TriRig Kappa Carbon Cage, TriRig Multi-bottle BTA Rail, TriRig Beta Bottle Carrier One, TriRig Polymount, TriRig Super-X Adaptor Plate
Visors: Kask Visor Aero 1.0 (M), Kask Visor Aero 2.0 (M)
Clothing & aero: Rule28 Aero Base Layer (M), Huub 3:sixteen Calf Guards (L), Fusion Calf Guards (L), Fusion Aero Socks, Fusion Aero Arms Covers, Aero Silca Socks, Huub Short Over Shoes Covers, Huub Aero Socks, Nopinz Hypersonic Overshoes Long

Athletes who trust us

Long Distance Team

Racing on SaBRe VIII + Disc

Marta Łagownik
Marta Łagownik
Triathlon — long distance
1st ETU Middle Distance 2024 & 2025. 2nd Worlds Long Distance 2024 & 2025. 1st Challenge Gran Canaria 2024 & 2025.
Robert Wilkowiecki
Robert Wilkowiecki
Triathlon — long distance
9th IM World Championships Nice 2023. 2nd IM Americas Championship Texas. 1st IM 70.3 Warsaw. 1st IM 70.3 Poznań.
Kacper Stępniak
Kacper Stępniak
Triathlon — long distance
2nd IM Florida. 14th IM World Championships Kona 2024 (debut). Polish record at IM & IM 70.3. 1st IM 70.3 Warsaw. 1st IM 70.3 Cracow.

Olympic Team

Racing on SaBRe VI.V

Paulina Klimas
Paulina Klimas
Triathlon — Olympic distance
1st Military World Championships 2022. 4th European Championships 2021 & 2024. Polish national team PZTri.
Maciej Bruździak
Maciej Bruździak
Triathlon — Olympic distance
3rd World Cup Korea 2025. 3rd Supertri E World Championship London 2025. Polish national team PZTri. Polish champion across 4 distances.
Jakub Gajda
Jakub Gajda
Triathlon — Olympic distance
3rd World Triathlon Cup Huatulco 2025. 1st European Cup Olsztyn (junior). 2nd Polish Championships 2025 (standard distance).

Olympic medalists

Daria Pikulik
Daria Pikulik
Silver, Track Cycling Omnium, Paris 2024
Władimir Semirunnij
Władimir Semirunnij
Silver, Speed Skating 10,000m, Milan 2026
AeroSensor Wove Soul Kozak Quintana Roo FastTT TriRig

This is what aerofitting looks like

Choose your format

Solo 2h
2 750 zł
net
+ 8% VAT

~9–10 test changes

An individual test plan: position, helmet and key equipment.

Book
Pair 3h
2 750 zł
/ person net
+ 8% VAT

~11–12 changes per person

Two riders, 3 h on the track. Same price as Solo 2h with two more changes per person. Good for couples and clubs.

Book

Cancellation later than 14 days before the session: 25% fee.

Frequently asked questions

Arrive with your own bike in full race configuration (shoes, race suit, helmet). Make sure the bike is in good working order. We'll send you a preparation checklist by email beforehand.
Yes. We test time-trial, road and gravel bikes. Our road work includes sessions with the PZTri Olympic squad.
From three sensors on the bike: a power meter, a speed sensor and an AeroSensor. You get a result after every run and compare it with the baseline run from the same session.
No. We bring dual-sided Garmin power meters for Shimano and Look cleats. If you have a good dual-sided meter of your own, we run the session on it.
Arena Pruszków, an indoor velodrome 15 km from central Warsaw, by car or suburban rail. Indoors, so weather is irrelevant.
Yes. A coach or someone accompanying you can stay for the whole session and see the result after every run.
Aero helmets from multiple brands, SaBRe wheels (VI.V, VIII, Disc), extensions, risers and different cockpit configurations. We will send the full equipment list before your session.
A 2 h session is 9–10 changes: position, helmet, key equipment. A 3 h session is 12–15 changes: position, equipment and combinations (11 changes per session on average across all formats). For most riders, 3 h.
You get a detailed report: the data from every tested configuration, CdA values, estimated time savings for your race distance, and the interpretation: what we changed, what each change was worth and what to do with it before your race.
Yes. Amateurs usually have a bigger reserve than pros because nobody has measured their position before. Usually 6–20 W at 40 km/h, which is 4–10 minutes over an Ironman.

The next track date opens in a few weeks.

The form takes two minutes and does not commit you. We reply with a date and a checklist.

Book a session

office@aloneindrag.com