The fastest bike for Mech Isle Mayhem

20.4 km with the 2.0 km lead-in
121 m of climbing
6.2 m/km climb ratio
2 sprints
Surface32.3% tarmac55.8% sand and dirt11.9% wood

0 km10.2 km20.4 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

36:13

33.7 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 1:23 minutes here

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If time-trial frames are allowed

Factor Hanzō with Cadex 4-Spoke/Disc (Time Trial)

TT frames are barred in many races.

34:52

1:22 faster

What's the fastest bike for Mech Isle Mayhem?

ZwiftBikes predicts the Specialized S-Works Tarmac SL9 with Cadex 4-Spoke/Disc is the best bike and wheels for Mech Isle Mayhem in Makuri Islands: the fastest road setup for a 75 kg rider at 225 W, finishing in 36:13 (~33.7 km/h). The Cannondale SuperSix EVO LAB71 Team with Cadex 4-Spoke/Disc is 0.31 s behind. Where TT bikes are allowed, the Factor Hanzō with Cadex 4-Spoke/Disc is 1:22 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	36:13	fastest	95 / 83	all-round
2	Cadex 4-Spoke/Disc	36:13	+0.31 s	94 / 82	climbing
3	Same frame in another paint: Canyon Aeroad CFR Alpecin Premier-Tech Cadex 4-Spoke/Disc	36:14	+0.52 s	95 / 74	aero
4	Cadex 4-Spoke/Disc	36:14	+0.55 s	96 / 72	aero
5	Cadex 4-Spoke/Disc	36:14	+0.79 s	95 / 75	all-round
6	Cadex 4-Spoke/Disc	36:14	+0.86 s	93 / 83	all-round
7	Cadex 4-Spoke/Disc	36:14	+0.90 s	95 / 75	aero
8	Cadex 4-Spoke/Disc	36:14	+1.17 s	94 / 78	aero
9	Cadex 4-Spoke/Disc	36:14	+1.39 s	95 / 70	aero

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

Why this bike wins here

Mech Isle Mayhem is rolling, with 6.2 m of climbing per kilometre, the kind of course where aerodynamics usually counts for far 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 3.2 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 88%Weight on climbs 12%

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: 1:23
Physics model: Dynamic, measured geometry

The course

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

Fastest bike for Boardwalk Sprint Rev.
Sprint · km 5.3 to 5.6
0.3 km · 1.0%
Fastest bike for Tidepool Sprint Rev.
Sprint · km 8.5 to 8.8
0.3 km · flat
Fastest bike for Boardwalk Sprint Rev.
Sprint · km 12.0 to 12.3
0.3 km · 1.0%
Fastest bike for Tidepool Sprint Rev.
Sprint · km 20.0 to 20.4
0.3 km · flat

Mapped surfaces; the shares describe one lap.

Surface	Share	Distance	Extra watts
Sand	35.0%	6.4 km	-
Tarmac	32.3%	5.9 km	-
Dirt	20.8%	3.8 km	-
Wood	11.9%	2.2 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.