Calibre Bossnut Evo Mountain Bike

Retail Price £1,300.00
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£999.00
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Evolution can take a long time, thankfully the Calibre team are quick to act - let the fun begin!

Lots of small changes have come together to make one big change and produce a new class killer, the Calibre Bossnut Evo.

Having listened to the many magazine reviews, team riders, and customers, Calibre have updated their Bossnut V2 with a view to making the best even better.

The frame stays with its superb geometry but now features both internal and external stealth dropper post routing, letting you choose whichever suits your style.

Rock Shox Recon RL forks are now fitted, still with 130mm travel and 15mm bolt through, but they are stiffer than the previous forks and give greater control in changes of direction and tracking your lines.

A 1x11 SRAM NX drive chain provides simplicity for the rider, yet still gives a huge range of gear ratios to clear any climb. Like everything in life, what’s better than 10? That’s right, turn it up to 11!

Each Bossnut has proven to be a fast bike, so powerful and responsive braking is now even more important. Covering this, the Evo has been fitted with Shimano MT500 brakes – a proven stopper.

Handlebars are a personal choice but several reviews sited the originals as needing to change, so it now comes fitted with a Kore Durox 780mm bar with 5 degree up and 8.5 degree back sweep.

The WTB ST rims now have an increased internal width of 29mm, giving greater strength but also a much better tyre profile which also offers more compliance. 

Giving much more grip that lets you ride faster and harder, the Vigilante front tyre is now paired with the WTB Trail Boss tyre, making the Bossnut Evo even more of a trail weapon.



  • Available in S, M, L and XL. Please see the info tab for geometry details

Attributes

Wheel Size: 27.5"
Frame: 6061 aircraft grade hydroformed alloy frame with tapered headtube and forged one piece rocker link - 130mm rear travel. Stealth and external dropper routing.
Fork: Rock Shox Recon RL 130mm travel with tapered alloy steerer and 15mm bolt through maxle stealth
Gear Details: SRAM NX 1x11
Gear Shifters: SRAM NX
Rear Derailleur: SRAM NX 1 x 11 speed
Chainset: Samox trail with 32T narrow wide ring
Brakes - Type: Hydraulic Disc
Brakes - Details: Shimano MT500 with Shimano 180mm front and 160mm rear rotors
Rims: WTB ST i29 32H tubeless ready
Tyres: WTB Vigilante 2.3" front and WTB Trail Boss 2.25" rear
Front Hub: Formula 15mm bolt through 32H
Rear Hub: Shimano TX505 32H QR
Stem: Calibre trail 45mm
Saddle: WTB Volt Sport
Handlebar: Kore Durox 780mm width 20mm rise
Head Set: FSA Orbit tapered No. 57E
Pedals: Alloy platform pedal
Weight (kg): 14.5
Seatpost: Calibre trail 30.9mm 350mm length
Speed: 11
Rear Shock: Rock shox Monarch R 190x51mm
Recommended Use: Cycling, Weekend
Gender: Mens
Cassette/Freewheel: SRAM PG1130 11-42
Bossnut Evo Geometry  
 15.5" (SM) 17.5" (M)
19.5" (L) 21.5" (XL)
Seat Tube  395mm 445mm 495mm 546mm
Effective Top Tube   580mm 601mm 622mm 640mm
BB Drop  18mm 18mm 18mm 33mm
Rear Centre  436mm 436mm 436mm 436mm
Seat Angle 73.5° 73.5° 73.5° 73.5°
Head Angle 66.8° 66.8° 66.8° 66.8°
Head Tube Length  110mm 115mm 125mm 135mm
Reach  411mm 429mm 446mm 463mm
Reviews(14)
Calibre Bossnut Evo Mountain Bike
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