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Calibre Bossnut V2 Mountain Bike

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Retail Price £1,300.00

Colour: Forge Orange
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Another award-winning full-suspension mountain bike from Calibre that builds and improves on the original Bossnut's success, available exclusively at GO Outdoors.

The frame of the Calibre Bossnut V2 has increased its lateral stiffness with the introduction of a one piece rocker link, which in turn has given greater clearance for a larger rear tyre – great for those UK winters.

It now has wider WTB tubeless ready rims that give an overall stronger wheel, and more importantly a better tyre profile to allow more control and grip.

The effective top tube of the bike has been stretched a little; this gives more room to maneuverer and allows a shorter stem which gives better steering control and confidence in steeper terrain.

A key part of what makes the Bossnut such a great bike is its well thought out and awesome spec list, and this continues for 2017, with the Rock Shox Sektor Silver forks and the Monarch R rear shock keeping the bike in control and wanting to go faster.

Shimano Deore provides the drive while the clutch rear mech keeps the chain on over the roughest terrain, with the Shimano hydraulic brakes keeping everything in control with one finger.

A short Calibre trail stem and wide 760mm Ritchey handlebar give the rider superior control in steep terrain and allow the bike to be thrown around with confidence.

Winner 'Best Bike Under £1000' in the 2017 Singletrack Reader Awards 

  • Increased the effective top tube length, whilst decreasing the length of the stem to give a more controlled and confident ride
  • Developed a one piece rocker link to stiffen the suspension laterally
  • Increased tyre clearance for up to a 2.35” tyre
  • Available in frame sizes 17.5" (M), 19.5" (L) and 21.5" (XL), please check the info tab for geometry details

Already receiving critical acclaim within the industry, the above video review from Dirt shows just how much has been improved from the original Bossnut. 


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 Sektor Silver 130mm travel with tapered alloy steerer and 15mm bolt through maxle
Gear Details: Shimano Deore 10 speed
Gear Shifters: Shimano Deore 2 x 10 speed iSpec
Front Derailleur: Shimano Deore 2 x 10 speed
Rear Derailleur: Shimano Deore 10 speed Shadow Plus
Chainset: Shimano Deore 36x22T
Brakes - Type: Hydraulic Disc
Brakes - Details: Shimano M506 levers with M447 calipers, Shimano 180mm centre lock front rotor and Shimano 160mm centre lock
Brakes - Levers: Shimano M506 levers
Rims: WTB ST i25 32H tubeless ready
Tyres: WTB Vigilante 2.3” front, WTB Bee Line 2.2” 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
Speed: 20
Weight (kg): 14.5
Gender: Mens
Seatpost: Calibre trail 30.9mm 350mm length
Rear Shock: Rock shox Monarch R 190x51mm
Cassette/Freewheel: Sunrace 11-36T


Bossnut V2 Geometry
17.5" (M)
19.5" (L) 21.5" (XL)
Seat Tube 445mm 495mm 546mm
Effective Top Tube  601mm 622mm 640mm
BB Drop 18mm 18mm 33mm
Rear Centre 436mm 436mm 436mm
Seat Angle 73.5° 73.5° 73.5°
Head Angle 66.8° 66.8° 66.8°
Head Tube Length 115mm 125mm 135mm
Reach 429mm 446mm 463mm


Calibre Bossnut V2 Mountain Bike
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