Calibre has today officially released the 27.5-inch wheel Triple B, a more aggressive and upgraded version of its wildly popular Bossnut.
The bike is actually an evolution of the Beastnut, a short run of limited-edition higher-spec versions of the Bossnut that sold out very quickly when they were released in January of last year. The Triple B is the permanent replacement of that crowd favorite.
Frame: Alloy frame, 130mm rear travel, stealth and external dropper routing. 142 x 12mm bolt through rear axle
Rear shock: RockShox Monarch R 190x51mm
Fork: RockShox Reba RL, 140mm
Drivetrain: SRAM NX 1×11 speed
Cassette: SRAM PG1130 11-42
Chainset: Samox trail with 32t narrow wide ring
Brakes: SRAM Guide T
Rims: WTB ST i29 32H tubeless ready
Tyres: WTB Vigilante 27.5 x 2.3in front and WTB Trail Boss 2.25in rear
Front hub: Formula 15mm bolt through 32H
Rear hub: Shimano MT500 142mm
Stem: Calibre trail 45mm
Saddle: Calibre Triple B
Handlebar: Kore Durox 780mm width 20mm rise
Headset: FSA Orbit tapered No. 57E
Pedals: Alloy platform pedal
Calibre Triple B highlights
The bike looks properly sorted for the moneyGo Outdoors
Compared to the V2 version of the Bossnut, which costs £999 (£1,300 without the discount card), you can buy the Triple B for £400 more at £1,399 (£1,600 without the discount card), with some substantial upgrades.
Starting from the back, the rear triangle gains a thru-axle, and up front, a higher spec 140mm travel RockShox Reba RL fork replaces the 130mm Sektor used on the Bossnut.
The 2x Deore groupset has been swapped out in favour of a 1×11 SRAM NX. A Tranz-X dropper post and a set of SRAM Guide brakes have also been fitted.
The wheels also see an upgrade, moving to WTB’s slightly wider i29 rims, giving the WTB Trail Boss/Vigilante tyres a better profile.
We take a closer look at the Bossnut V2 on our YouTube channel
While Go Outdoors is a UK-based retailer, it’s worth bearing in mind that the outdoor mega-retailer offers world wide shipping.
It’s no secret that we’re big fans of the Calibre Bossnut — Go Outdoors has done a stellar job putting together a properly sorted, inflation-dodging bike and we’re really looking forward to trying out the Triple B, which on the surface at least, seems to feature many of the upgrades we would recommend making to the Bossnut.
Jack has been riding and fettling bikes for his whole life. Always in search of the hippest new niche in cycling, Jack is a self-confessed gravel dork, fixie-botherer, tandem-evangelist, hill-climbing try hard, and thinks nothing of taking on a daft challenge for the BikeRadar YouTube channel. With a near encyclopaedic knowledge of cycling tech — from the most esoteric niche nonsense to the most cutting edge modern kit — Jack takes pride in his ability to seek out tech and stories that would otherwise go unreported. Jack has been a Senior Staff Writer at BikeRadar for three years now and is currently testing an All-City Mr Pink as his long term test bike.