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4G Primo Si 5.5 (Ultegra)
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This bike is designed and engineered for racing. It's a no compromise chassis that was designed to give the ultimate in efficiency. If you want to go fast, stay fast, and then go a little bit faster, the 4G is for you.

4G Primo Si 5.5 (Ultegra)

Matt Grey Frame with Gloss Black Decal

£1,999.99

Frameset

Frame

Monocoque carbon frame - integrated cable routing - Di2 Ready

Fork

Carbon aero blades and steerer

Sizes

48, 50, 52, 54, 56, 59cm


Wheelset

Tyres

Continental 700X23C Ultra Sport Black

Rim

Mavic CXP 22

Hub


Drivetrain

Shifters

Ultegra 20 Speed

Front Derailleur

Ultegra 20 Speed

Rear Derailleur

Ultegra 20 Speed

Crank

Ultegra Compact 50 / 34 or 53 / 39 - 172.5

Cassette

Shimano 10-SPEED 11-12-13-14-15-17-19-21-23-25T

Chain

KMC Silver 10 speed


Components

Saddle

Fizik Arione

Seatpost

ICE Carbon Aero

Handlebar

Ritchey LOGIC CURVE COMP

Stem

Ritchey LOGIC COMP

Headset

Nico aluminum / Steel intergated

Brakeset

ICE Dual Pivot Brakes


Accessories

Tape

Velo Gel Tape

4G Primo Si 6.0 (Ultegra Di2)

Gloss Black with Matt Black Decals

£2,799.99

Frameset

Frame

Monocoque carbon frame - integrated cable routing - Di2 Ready

Fork

Carbon aero blades and steerer

Sizes

48, 50, 52, 54, 56, 59cm


Wheelset

Tyres

Continental 700X23C Ultra Sport Black

Rim

Mavic CXP 23

Hub


Drivetrain

Shifters

Ultegra-Di2 20 Speed

Front Derailleur

Ultegra-Di2 20 Speed

Rear Derailleur

Ultegra-Di2 20 Speed

Crank

Ultegra Compact 50 / 34 or 53 / 39 - 172.5

Cassette

Shimano 10-SPEED 11-12-13-14-15-17-19-21-23-25T

Chain

KMC Silver 10 speed


Components

Saddle

Fizik Arione

Seatpost

ICE Carbon Aero

Handlebar

Ritchey LOGIC CURVE COMP

Stem

Ritchey LOGIC COMP

Headset

Nico aluminum / Steel intergated

Brakeset

ICE Dual Pivot Brakes


Accessories

Tape

Velo Gel Tape

4G Primo Si 6.5 (Dura ace)

Matt Black with Gloss Black Decals

£3,499.99

Frameset

Frame

Monocoque carbon frame - integrated cable routing - Di2 Ready

Fork

Carbon aero blades and steerer

Sizes

48, 50, 52, 54, 56, 59cm


Wheelset

Tyres

Continental 700X23C Ultra Sport Black

Rim

Mavic AKSIUM Black M10

Hub


Drivetrain

Shifters

DURA ACE

Front Derailleur

DURA ACE

Rear Derailleur

DURA ACE

Crank

DURA ACE Comapct 50 / 34 or 53 / 39 - 172.5

Cassette

Shimano 10-SPEED 11-12-13-14-15-17-19-21-23-25T

Chain

KMC Silver 10 speed


Components

Saddle

Fizik Arione

Seatpost

Ritchey LOGIC COMP

Handlebar

Ritchey LOGIC CURVE COMP

Stem

Ritchey LOGIC COMP

Headset

Nico aluminum / Steel intergated

Brakeset

TEKTRO Dual Pivot Brakes

4G Primo Si 7.5 (Dura ace Di2)

COMING SOON

£4,999.99

Frameset

Frame

Monocoque carbon frame - integrated cable routing - Di2 Ready

Fork

Carbon aero blades and steerer

Sizes

48, 50, 52, 54, 56, 59cm


Wheelset

Tyres

Continental 700X23C Ultra Sport Black

Rim

Mavic AKSIUM Black M10

Hub


Drivetrain

Shifters

DURA ACE

Front Derailleur

DURA ACE

Rear Derailleur

DURA ACE

Crank

DURA ACE Comapct 50 / 34 or 53 / 39 - 172.5

Cassette

Shimano 10-SPEED 11-12-13-14-15-17-19-21-23-25T

Chain

KMC Silver 10 speed


Components

Saddle

Fizik Arione

Seatpost

Ritchey LOGIC COMP

Handlebar

Ritchey LOGIC CURVE COMP

Stem

Ritchey LOGIC COMP

Headset

Nico aluminum / Steel intergated

Brakeset

TEKTRO Dual Pivot Brakes

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All photos, colours and specifications on this website are based on the latest production information however MEKK reserves the right to make changes at any time, without notice, to colours, materials, equipment, specifications and models. *Guarantee for First Owner Only