Bimota to introduce the new Kb4 & Kb4RC at EICMA 2021

Bimota to introduce the new Kb4 & Kb4RC at EICMA 2021

As announced, the Bimota Kb4, first shown as a concept bike at the last EICMA in Milan, is now on the production line. Together with it, Bimota announced the addition of a new model based on the Kb4 project, the “Vintage-Inspired” Kb4-RC (RaceCafe’) 

“No other manufacturer has a motorcycle like Kb4 and Kb4RC,” said Pierluigi Marconi, Bimota General Manager. 

The Kb4 & Kb4RC are attention grabber will act as a halo for Bimota by attracting further consumer attention to our impressive vehicle lineup”. 

Marconi noted Kb4 is the second major product announcement from Bimota in the past 20 months – both breakthrough vehicles combine Bimota’s heritage with modern-day function and flair. 

Kb4RC is now completing the Bimota model range for 2022. 

Earlier in November 2019, Bimota announced TesiH2 to create a kind of unique motorcycle. 

Tesi H2 is part sport-exclusive and part hyper-sport motorcycle and can be identified as the latest innovative motorcycle chassis design in 1982. 

Bimota Kb4 & Kb4RC

Tesi H2 is actually on display in Bimota’s shop-in-shop since September 2020. The production Bimota Kb4 & Kb4RC “Vintage Inspired” will be unique by combining the classic design of the iconic Bimota motorcycles of the ’70s with the function and utility of a modern bike. 

In the spirit of Bimota, Kb4 & Kb4RC will be contemporary thoroughbreds – 142hp in-line 4-powered, best-handling street machine with an innovative high-pressure cooling system. 

The one-piece radiator is neatly stowed, diagonally between the seat and the rear wheel. “Kb4 & Kb4RC, they both look sleek and fast — just like the process created it,” said Enrico Borghesan, designer of Bimota. 

“It went from the first sketch to full-size model in a few months using computer-aided design — and without missing any of the passion has made so many Bimota products fun to ride and show off. 

You ride some bikes because you have to, but you ride these Bimota because you want to.” The strong fairing forms are part of Bimot’s rich heritage but arrive stylishly. Other Kb4 exterior design features include the full-width windscreen and prominent Bimota logo currently appear on other Bimotas. 

The Kb4RC allow the Bimota enthusiasts to enjoy the wind stander faces and the glorious past of the CafèRacers bikes. 


Five-spoke forged alloy sport wheels, and performance tires (Pirelli SportEvo) promote the Vintage-InspiredKb4 & Kb4RC look. “Kb4 & Kb4RC will appeal to enthusiasts of all ages because the design draws you in.And the performance keeps you there,” Borghesan said.

 “The Bimota Vintage-Inspired has the soul for spirited, functional motorcycles. Kb4 & Kb4 RC bring the best of both worlds to the extreme, two-spirited Italian Icons with a functional engine and electronic package.” 

The more practical side of the Bimota Kb4 & Kb4RC includes a comfortable leather seat. 

All the electronic controls come optimized for every condition in which the Kb4 & Kb4RC will operate.

 “We have been overwhelmed by the positive public and dealer response to the Kb4 concept,” Marconi said. “

The collective response from motorcycle’s enthusiasts across the world was beyond our wildest expectations. And the expectations won’t be watered down; they will look strikingly similar to the concept Kb4 played to rave reviews.” 

Based on the actual Kawasaki platform, the production version of Bimota Kb4 & Kb4RC will conceal behind a dashboard mounted on a carbon fibre structure, all controls for riding data and Kawasaki’s electronic devices. 

“Bikers from 6 to 80 will turn their heads when Kb4 & Kb4RC come down their street,” Marconi said, “just as they did with the ’78 Kb1, the ’81 Kb2 and the ’83 Kb3. 

The kb4 &Kb4RC recall the fun part of Bimota’s proud history. Oozing Bimota’s heritage, the Kb4 & Kb4RC comes destined to become the next heart-pounding Bimota vintage Inspired motorcycles.


  • Frame type: Front frame trellis made by Hi-resistance steel with Aluminum alloy plates billet machined,
  • Engine type / Valve system: 4stroke, 4-cyl, DOHC, W/C, 4-valve
  • Displacement: 1.043cm³
  • Bore x Stroke: 77.0mm×56.0mm
  • Compression ratio: 11,8:1
  • Max. power: 105kW(142HP)/10,000rpm
  • Max. torque: 111N・m(11.3kgf・m)/8,000rpm
  • Lubrication system: Forced Lubrication (wet sump)
  • Engine oil capacity: 4.0L
  • Fuel systemDFI®: 38mm throttle bodies(4), Euro-5
  • Transmission: 6-speed,
  • Clutch type : Wet, multi-disc
  • Gear ratio: 1st 2.600(39/15); 2nd 1.950(39/20); 3rd 1.600(24/15); 4th 1.389(25/18); 5th 1.238(26/21); 6th 1.107(31/28)
  • Primary reduction ratio: 1.627 (83/51)
  • Final reduction ratio: 2.733(41/15)
  • Gasoline type: Unleaded premium
  • Fuel capacity: 19,5L
  • Length: 2,050mm
  • Width: 774mm
  • Height: 1,150mm
  • Wheelbase: 1,390mm
  • Ground clearance: 140mm
  • Seat height: 810mm ( + / – 8mm )
  • Rake angle/Trail: 24.0°/ 100,8mm
  • Front Suspension: Öhlins front fork FG R&T 43 NIX30
  • Wheel travel front: 130mm
  • Rear Suspension : Aluminum alloy Swingarm billet with Öhlins ttX 36
  • Rear wheel travel: 122mm
  • Tire size front: 120/70ZR17
  • Front Wheel : Forged J17M/C×MT3.50
  • Rear tire size: 190/50ZR17
  • Rear Wheel : Forged J17M/C×MT6.00
  • Brake type (Outer diameter)
  • Front: Dual disc 320mm
  • Rear: Single disc 220mm
  • Dry weight 189kg
  • Curb weight : 194kg
  • Suggested retail price(in Italy): TbD
  • Start of sales: TBD

via Bimota

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