The fastest bike for Cobbled Crown

24.3 km with the 0.3 km lead-in
288 m of climbing
12.0 m/km climb ratio
4 named climbs, 2 sprints
Surface86.2% tarmac13.8% cobbles

0 km12.2 km24.3 kmThe dashed start is the lead-in, which has no measured profile, so its shape is approximated.

Fastest eligible setup · Standard (Road) · verified data only · Halo bikes hidden

with Cadex 4-Spoke/Disc wheels

45:44

31.9 km/h averageestimated for 1 lap with the lead-in

Data: Frame and wheels bot-tested
Upgrades: Ranked at upgrade stage 5, assumed for bikes you don't own
Rough surfaces: Rough surfaces cost this setup about 15 seconds here

See the full ranking

If time-trial frames are allowed

Canyon Speedmax CFR with Cadex 4-Spoke/Disc (Time Trial)

TT frames are barred in many races.

44:13

1:31 faster

What's the fastest bike for Cobbled Crown?

ZwiftBikes predicts the Specialized S-Works Tarmac SL9 with Cadex 4-Spoke/Disc is the best bike and wheels for Cobbled Crown in Richmond: the fastest road setup for a 75 kg rider at 225 W, finishing in 45:44 (~31.9 km/h). The Cannondale SuperSix EVO LAB71 Team with Cadex 4-Spoke/Disc is 0.71 s behind. Where TT bikes are allowed, the Canyon Speedmax CFR with Cadex 4-Spoke/Disc is 1:31 quicker.

75 kg / 175 cm / 225 W / solo; 1 lap, including any lead-in once. Standard (Road); verified only; unowned Halo bikes excluded.

Every setup, ranked

Gap to the fastest. Open a row for its wheels, upgrades and the numbers behind it.

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Pick up to 3 setups in their rows to compare them.

All columns

#	Frame and wheels	Time	Gap	Aero / climb	Style
1	Cadex 4-Spoke/Disc	45:44	fastest	95 / 83	all-round
2	Cadex 4-Spoke/Disc	45:45	+0.71 s	94 / 82	climbing
3	Cadex 4-Spoke/Disc	45:45	+1.14 s	93 / 83	all-round
4	Same frame in another paint: Canyon Aeroad CFR Alpecin Premier-Tech Cadex 4-Spoke/Disc	45:45	+1.22 s	95 / 74	aero
5	Cadex 4-Spoke/Disc	45:46	+1.81 s	95 / 75	aero
6	Cadex 4-Spoke/Disc	45:46	+1.84 s	96 / 72	aero
7	Cadex 4-Spoke/Disc	45:46	+1.92 s	95 / 75	all-round
8	Cadex 4-Spoke/Disc	45:46	+2.04 s	93 / 81	climbing
9	Cadex 4-Spoke/Disc	45:46	+2.06 s	94 / 78	aero

Something here look wrong? Report it – corrections with a source get folded back into the data.

Why this bike wins here

Cobbled Crown is rolling, with 12.0 m of climbing per kilometre, the kind of course where aerodynamics usually counts for clearly more than low weight. The Specialized S-Works Tarmac SL9 is an all-round frame. Disc or regular wheels is a close call: the Cadex 4-Spoke/Disc is 2.6 s faster than the SwissSide HADRON Ultimate 650, but 0.37 kg heavier.

What the terrain rewards, from its climbing alone: aerodynamics against low weight

Aerodynamics 67%Weight on climbs 33%

Drag area against the stock bike: −0.0360 m²
Mass against the stock bike: −1.59 kg
Rolling resistance change: −0.0003
Time lost to rough surfaces: 15 s
Physics model: Dynamic, measured geometry

The course

1 lap; kilometre positions include the lead-in, ridden once.

Fastest bike for 23rd St. Rev
Climb · km 1.1 to 2.2
1.1 km · 3.5% 39 m
Fastest bike for Richmond KOM Rev.
Climb · km 2.6 to 3.3
0.7 km · 3.4% 23 m
Fastest bike for Richmond Sprint
Sprint · km 11.8 to 12.0
0.2 km · flat
Fastest bike for Broad St.
Sprint · km 15.2 to 15.5
0.3 km · flat
Fastest bike for Richmond KOM
Climb · km 20.0 to 20.7
0.6 km · 6.4% 40 m
Fastest bike for 23rd St.
Climb · km 21.6 to 21.9
0.3 km · 10.0% 28 m

Mapped surfaces; the shares describe one lap.

Surface	Share	Distance	Extra watts
Tarmac	86.2%	20.7 km	-
Cobbles	13.8%	3.3 km	-

Extra watts are what the fastest setup needs to hold its pace on each surface rather than on tarmac, averaged over the ride - they appear once a ranked setup and mapped surface positions are there to simulate .

Dynamic physics model active

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