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Sunn Gp S1

Build SRAM Rival AXS

High endAeroCarbon700cReleased in 2026
Sunn Gp S1, side view

Sunn Gp S1

aero road bike, carbon frame, 700c wheels, 2×12 drivetrain, high end equipment

Key specs

Model year
2026
Weight
7.9 kg
Frame
Carbon
Wheelset
700c · Mavic Cosmic SL45 Carbon
Drivetrain
2×12
Groupset
SRAM Rival AXS E1
Brake model
SRAM Rival AXS E1 Centerlock Paceline 160/140
Seatpost
BRUTE AERO CARBON SEATPOST 0 OFFSET

Spec sheet

Every value is read on the brand’s page; hover it to see its source and date.

Ride type

Ride type
Aero

Frame and fork

Frame
Carbon
Fork
Carbon
Max tyre clearance
32 mm
Axles
Thru-axles
Bottom bracket
PF 86,5 road
Cable routing
Internal

Drivetrain

Groupset brand
SRAM
Groupset
SRAM Rival AXS E1
Shifting
Electronic, wireless
Chainrings
2
Gears at the back
12
Chainring teeth
SRAM Rival AXS Powermeter 48x35
Cassette
SRAM Rival XG-1250 10-36
Rear derailleur
SRAM RIVAL AXS E1 12S AR SRAM RIVAL AXS E1 AV
Power meter fitted
yes

Brakes

Brakes
Hydraulic disc
Brake model
SRAM Rival AXS E1 Centerlock Paceline 160/140

Wheels and tyres

Wheel size
700c / 29"
Wheelset
Mavic Cosmic SL45 Carbon
Rims
Carbon
Rim depth
45 mm
Tubeless ready
yes
Tyres
Michelin Powercup Competition Line TLR 30 mm
Tyre width fitted
30 mm

Cockpit and seatpost

Seatpost model
BRUTE AERO CARBON SEATPOST 0 OFFSET
Integrated cockpit
yes

Weight

Weight
7.9 kg

Geometry

Geometry size
M
Stack
544 mm
Reach
384 mm
Head angle
73.3 °
Seat angle
74 °
Chainstays
410 mm
Wheelbase
984 mm
Bottom bracket drop
74 mm

Spec sheets read at: sunn.fr

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

« Road bike all-round, rather nimble, rather high equipment. »

Terrain
1 bike3 bikes3 bikes5 bikes2 bikes2 bikes · Gp S11 bike6 bikes2 bikes3 bikes9 bikes
EasyDemanding

As at ease on rough ground as most other aero road bikes.

Handling
1 bike3 bikes1 bike1 bike1 bike1 bike1 bike2 bikes · Gp S16 bikes1 bike1 bike2 bikes3 bikes7 bikes2 bikes7 bikes1 bike2 bikes
NimbleStable

Livelier in the turns than most other aero road bikes.

Not enough data yet for the Gearing chart: it fills in once the sheet is complete.

Not enough data yet for the Equipment level chart: it fills in once the sheet is complete.

Gp S1other aero road bikes

Geometry

5 sizes: XS, S, M, L, XL.

Geometry of the Gp S1 per size
Geometry of the Gp S1 per size
Reach (mm) 373379384392399
Stack (mm) 499523544565583
Top tube (effective) (mm) 512529540565572
Seat tube (mm) 450475504532550
Head tube (mm) 91114131155173
Head angle (°) 71.572.373.373.373.3
Seat angle (°) 74.574747373
Chainstays (mm) 410410410410410
Wheelbase (mm) 9709789849891,000
Front centre (mm) 572579585590601
BB drop (mm) 7474747272
BB height (mm) 262262262264264
Fork offset (mm) 4950534341
Trail (mm) 6256475759

The range

Comparable road bikes

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  • Van Rysel XCR, side view

    Van Rysel

    XCR

    • Rival AXS

    Sizes not specified

  • Cervélo R5, side view

    Cervélo

    R5

    • Force AXS

    Sizes not specified

    2 colours

Who is it for?

The sports the brand announces, and the features that go with them.

  • Cycling

    • Ride type: Aero
    • Groupset: SRAM Rival AXS E1
    • Weight: 7.9 kg
    • Max tyre clearance: 32 mm

Frequently asked questions

What kind of riding is the Sunn Gp S1 made for?

Aero, according to the brand.

How wide a tyre fits the Sunn Gp S1?

Up to 32 mm, according to the brand.

Does the Sunn Gp S1 have electronic shifting?

Electronic, wireless, according to the brand.

Specs updated on Nov 7, 2026Some values come from third-party spec databases, cross-checked with the brand where it publishes them.Report an error