Cipollini NK1K review

Built for speed, combining aero and stiffness

Our rating 
4.0 out of 5 star rating 4.0
GBP £7,600.00 RRP

Our review

Cipollini’s NK1K is flamboyant, fast and thrilling to ride
Buy if, Your main concern is speed and your pockets are deep
Pros: Fast, aggressive and brimming with quality
Cons: Super-aggressive position, pricey
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We’ve tested a few Cipollini bikes (RB800, RB1000) and found them aggressive, rock solid and fast. The uncompromising geometry of short wheelbase, low front end and long ride position suits those who like fast blasts rather than long days out.


While the NK1K keeps to that ethos, it has a few more tricks. The front end is low — 541.5mm of stack on my medium bike combined with a 384.5mm reach — but you can choose a second handmade carbon headset cover that raises the front by 15mm, if you want more stack.

The angles are similarly aggressive with a steep 73.5-degree seat angle that puts you square over the cranks, encouraging powerful high-cadence efforts. The head-tube is 72.5 degrees with a 45mm rake that makes for a fine balance between straight-line stability and nimble direction changes.

On climbs the NK1K impresses; even the 53/39 chainset didn’t pose any issues

So far so very Italian sprinting legend, but the bike is designed to take a larger tyre; 28mm on wide rims will fit for more comfort. My bike comes with the mighty FFWD F4R wheels that offer sweet braking and good crosswind control in an aero package. These are shod with 25mm Challenge Strada tyres that feel smooth thanks to their tubular tyre-like 300tpi cotton casing.

The latest 9110 Dura-Ace direct-mount brakes with their twin-bolt connection to the frame and fork offer increased rim width capacity, which is a good match to the FFWD wheels, and in use are loaded with power and full of feel. They’re certainly the closest I’ve seen to disc brake performance from a standard caliper brake.

Plenty of aero-style bikes feel fast once you’re over the 20mph hump, but the neat trick with the NK1K is that it feels lightning quick from a standing start. The solidity through the massive bottom bracket shell and taut front end make for a truly exciting bike under acceleration.

The frame weighs 1,120g, not light in these days of sub-kilo flyweights, and the overall 7.65kg weight isn’t light for a superbike, but the NK1K doesn’t feel heavy. It’s almost the opposite thanks to the lightness of touch you need through turns.

On climbs the NK1K impresses; even the 53/39 chainset didn’t pose any issues. I like its combination with the 11-28 cassette, but more so the efficient way the chassis transfers your energy into propelling you forward without sapping anything from undue flex.

The frame is built using T1000 Toray fibres, very much like the Pinarello F8, and so aggressively styled I’d imagine any nods to comfort being way down on the list, but the Cipo surprises again. It’s never going to match the plushness of the Domane, but it was free of harsh vibrations.

The chassis does communicate the road texture, but never in a wearing manner.

The cockpit, comprising of a Ritchey WCS Logic II carbon bar and 220 stem, offers plenty of stiffness with its vibration-damping qualities.


I’m impressed by the NK1K, and it’s the best I’ve tested yet from Cipollini. While it’s not a bike for everyone, being so focused on speed and getting you down into an aero position, it’s still one to be admired for its design uninfluenced by trends, its wonderful handcrafted-in-Italy construction and its damned exciting ride.

Product Specifications


Name NK1K
Brand Cipollini

Available Sizes XXS XS S M L XL XXL
Rear Wheel Weight 1470
Wheelbase (cm) 99
Top Tube (cm) 57.5
Standover Height (cm) 80
Seat Tube (cm) 50
Chainstays (cm) 41
Bottom Bracket Height (cm) 27
Wheelset FFWD F4R carbon
Weight (kg) 7.65
Trail 6
Stem Ritchey 220 WCS 100mm
Shifters Shimano Ultegra Di2
Seatpost Cipollini aero carbon
Seat Angle 73.5
Saddle Ritchey WCS Ti
Rear Tyre Challenge Strada Pro 700x25mm
Bottom Bracket BB386
Rear Derailleur Shimano Ultegra Di2
Headset Type Cipollini integrated
Head Angle 72.5
Handlebar Ritchey WCS Logic II 42cm
Front Wheel Weight 1070
Front Tyre Challenge Strada Pro 700x25mm
Front Derailleur Shimano Ultegra Di2
Frame Material Carbon T1000
Fork Offset 4.5
Fork Carbon T1000
Cranks Shimano Ultegra Di2 53/39
Chain Shimano
Cassette Shimano Ultegra Di2 11-28T
Brakes Shimano Dura-Ace 9100 direct mount
Frame size tested M