The fastest bike for Zwift Bambino Fondo

52.4 km with the 0.5 km lead-in
581 m of climbing
11.2 m/km climb ratio
2 named climbs, 1 sprint
Surface74.1% tarmac18.9% dirt6.9% wood and cobbles

0 km26.2 km52.4 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

1:40:07

31.4 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 3:50 minutes 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.

1:37:14

2:53 faster

What's the fastest bike for Zwift Bambino Fondo?

ZwiftBikes predicts the Specialized S-Works Tarmac SL9 with Cadex 4-Spoke/Disc is the best bike and wheels for Zwift Bambino Fondo in Watopia: the fastest road setup for a 75 kg rider at 225 W, finishing in 1:40:07 (~31.4 km/h). The Cannondale SuperSix EVO LAB71 Team with Cadex 4-Spoke/Disc is 1.6 s behind. Where TT bikes are allowed, the Canyon Speedmax CFR with Cadex 4-Spoke/Disc is 2:53 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	1:40:07	fastest	95 / 83	all-round
2	Cadex 4-Spoke/Disc	1:40:09	+1.61 s	94 / 82	climbing
3	Cadex 4-Spoke/Disc	1:40:09	+2.17 s	93 / 83	all-round
4	Same frame in another paint: Canyon Aeroad CFR Alpecin Premier-Tech Cadex 4-Spoke/Disc	1:40:11	+4.41 s	95 / 74	aero
5	Cadex 4-Spoke/Disc	1:40:12	+4.83 s	93 / 81	climbing
6	Cadex 4-Spoke/Disc	1:40:12	+5.23 s	95 / 75	aero
7	Cadex 4-Spoke/Disc	1:40:12	+5.42 s	94 / 78	aero
8	Cadex 4-Spoke/Disc	1:40:13	+5.51 s	95 / 75	all-round
9	Cadex 4-Spoke/Disc	1:40:13	+5.94 s	96 / 72	aero

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

Why this bike wins here

Zwift Bambino Fondo is rolling, with 11.2 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 4.7 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 70%Weight on climbs 30%

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: 3:50
Physics model: Dynamic, measured geometry

The course

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

Fastest bike for Watopia Sprint
Sprint · km 7.6 to 7.9
0.3 km · flat
Fastest bike for Zwift KOM
Climb · km 11.5 to 12.4
0.9 km · 5.0% 44 m
Fastest bike for Watopia Sprint
Sprint · km 16.7 to 17.0
0.3 km · flat
Fastest bike for Volcano KOM
Climb · km 48.7 to 52.4
3.7 km · 3.2% 119 m

Mapped surfaces; the shares describe one lap.

Surface	Share	Distance	Extra watts
Tarmac	74.1%	38.5 km	-
Dirt	18.9%	9.8 km	-
Wood	5.9%	3.1 km	-
Cobbles	1.0%	0.5 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.