The Calibre Beastnut Is Born!

The arrival of the BEAST 

In the immortal words of Hunter S. Thompson: ‘He who makes a beast of himself, gets rid of the pain of being a man’. The mountain biking world has been a buzz about the arrival of the limited edition, almost mythical ‘Beastnut’ from Calibre, and we’re delighted to say we’ve got the first video footage of it out in the wild.

Before we get to the Beastnut, let’s talk a little about what to expect in 2017 from Calibre. Since it’s inception Calibre has offered well thought out geometry and unrivalled spec for the price.

Leading the charge for Calibre over the last few years has been the Bossnut mountain bike, this bike has won everything from WMB group test and a 5/5 from MBUK to MBR’s Bike of the Year, it truly has changed the market for what a sub £1,000 full sus bike can be.

New Bossnut coming in 2017

For 2017 Calibre challenged themselves to improve on what is already an incredibly fun and capable bike. With a team of passionate riders and the glorious Peak District as a testing ground the improvements on the upcoming 2017 Bossnut are outstanding:

  • Increased the effective top tube length, whilst decreasing the length of the stem to give a more controlled and confident ride
  • Development of a one piece rocker link to stiffen the suspension  laterally
  • Increased tyre clearance for up to a 2.35” tyre
  • Oh yeah and thew new Bossnut will still be sub £1,000!

But you’ll have to wait till later in the year to see the new Bossnut!


Introducing the Calibre Beastnut

To celebrate the efforts of the team, Calibre have created a special edition bike with all the upgrades that they would personally choose to create a straight out the box trail smashing bike. The BEASTNUT was born!

Using the same new frame as the 2017 Bossnut, Calibre have upgraded the forks to 140mm Rock Shox Revelation RL to slacken the head angle out a little more and increase control. The drive chain has been changed to the 1×11 SRAM NX with a narrow-wide 32T chaining and the SRAM Guide RE brakes bring you the stopping power you need. To round the package off a Tranz-X 120mm dropper post has been added.

All this as well as a truly awesome paint job for £1,300!


Wheel Size: 650B
Frame: 6061 aircraft grade hydroformed alloy frame with tapered headtube and forged one piece rocker link – 130mm rear travel
Fork: Rock Shox Revelation RL Solo Air 140mm travel with tapered alloy steerer and 15mm bolt through maxle
No. of Gears: 11
Gear Details: SRAM NX 1×11
Gear Shifters: SRAM NX
Front Derailleur: Beastnut limited edition blanking plate
Rear Derailleur: SRAM NX
Chainset: Samox trail with 32T narrow wide ring
Cassette: SRAM PG1130 11-42
Chainrings: SRAM PC1110
Brakes – Type: Hydraulic Disc
Brakes – Details: SRAM Guide 180 front and 160 rear rotor
Brakes – Levers: SRAM Guide
Rims: WTB ST i23 32H tubeless ready
Tyres: WTB Vigilante 2.3” front, WTB Ranger 2.25” rear
Front Hub: Formula 15mm bolt through 32H
Rear Hub: Formula 32H
Stem: Calibre trail (45mm for 17.5″and 19.5″, 60mm for 21.5″)
Saddle: WTB Volt Sport
Handlebar: Ritchey MTN Trail 760mm width, 20mm rise
Head Set: FSA Orbit tapered No. 57E
Pedals: Alloy platform pedal
Rear Shock: Rock shox Monarch RS 190x51mm
Gender: Mens
Seatpost: Tranz X Dropper – 120mm drop


This bike is truly limited edition, with only 250 being made, with each bike uniquely numbered on the blanking plate, it will be sold on a first come first served basis. To be in the running to get one of these awesome machines please head to the link below and fill in your details.

Register your details for the limited edition Calibre Beastnut here