ZwiftBikes
ZRacing 2026 schedule

ZRacing 2026 - September: Zwift Racing Powered by DURA-ACE

Stage 1: Croissant

7-13 Sept - France

Official event info - signup, full rules and results live with Zwift; we rank the bikes.

Scratch raceFlat
TT bikes are disabled for this race
Zwift disables TT frames for scratch races, so they are excluded from the ranking below. Everything listed is a bike you can actually start on.

Distance

21.8 km

Elevation

121 m

Laps

2

Terrain

Flat

PowerUps:AeroDraft

What bike should I ride for ZRacing 2026 - September: Zwift Racing Powered by DURA-ACE Stage 1?

TT bikes are disabled for this scratch race. Over 2 laps of Croissant (21.8 km), our physics model makes the Cervelo S5 with DTSwiss ARC 1100 DICUT 85/Disc the fastest legal combo, finishing in 36:50 (~35.5 km/h).

How this race tends to play out

The month opens in France with two laps of Croissant: 21.8 km of unbroken tarmac and only 122 m of climbing, none of it steep. Nothing on this course rewards a light bike, so it is a flat-out aero race - and with Aero and Draft as the powerups, the field should stay bunched and fast to the line.

Race details from the published round guide.

Best bike & wheel combo for this race

This is a scratch race, but the ranking below is computed for a lone rider with no draft at all. Race draft mode adds the draft a typical mid-pack racer measurably gets, calibrated on thirteen real race fields.

Only show verified frames/wheels
Include hard-to-unlock Halo bikes
Only show items in my garage(edit garage)

Times shown for a 75 kg, 175 cm rider at 225 W - adjust the sliders, or set your profile once.

(edit profile)
Fastest overall: Specialized PROJECT 74 Standard (Road) — 4s quicker. A Halo bike - unlocking it takes three fully upgraded frames of one brand plus ~20 million Drops.
1

DTSwiss ARC 1100 DICUT 85/Disc

36:50

est. finish time35.5 km/h

93 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 88 Climbing: 5
2

DTSwiss ARC 1100 DICUT 85/Disc

+0.02s

slower35.5 km/h

92 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
3

DTSwiss ARC 1100 DICUT 85/Disc

+0.02s

slower35.5 km/h

92 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
4

Shimano C99/Disc

+0.36s

slower35.5 km/h

92 match Standard (Road)allrounder style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
5

Shimano C99/Disc

+0.49s

slower35.5 km/h

92 match Standard (Road)allrounder style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
6

Shimano C99/Disc

+0.50s

slower35.5 km/h

92 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
7

DTSwiss ARC 1100 DICUT 85/Disc

+0.53s

slower35.5 km/h

92 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
8

DTSwiss ARC 1100 DICUT 85/Disc

+0.62s

slower35.5 km/h

92 match Standard (Road)climb style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5
9

Shimano C99/Disc

+0.75s

slower35.5 km/h

92 match Standard (Road)aero style Disc / TT wheels frame verified wheels verified Level 5
Aero (flat/fast): 87 Climbing: 5

Surface

Dynamic physics model active

Every time below is simulated for your weight, height and power over this route’s real, measured elevation data.

Racing a different number of laps, or want this route outside the event? See the full Croissant route analysis.

ZwiftBikes is not affiliated with Zwift. Schedules are curated from public announcements and may lag corrections - always check the official event listing before race day. The bike and wheel recommendations are ours alone.