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2022 Calibre

BOSSNUT

A 27.5″ aluminum frame full suspension trail bike with upper mid-range components.

Weight33.5 lbs  
FrameAluminum
SuspensionFull, 130 / 130mm
ForkRockShox Recon Silver RL
ShockRockShox Monarch R
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetSX Eagle
BrakesSRAM Level T Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
BOSSNUT
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

24 mph

BOSSNUT

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Calibre Bossnut is a highly praised trail bike that offers exceptional value for money, delivering performance that rivals more expensive models. Its efficient suspension system, contemporary geometry, and balanced ride quality make it a standout for both climbing and descending. While it has some limitations in component quality and upgrade options, its overall trail manners and fun factor are frequently highlighted.

Pros
  • Exceptional value for money

  • Efficient suspension system

  • Contemporary geometry

  • Balanced and fun ride quality

  • Good performance on both climbs and descents

Cons
  • Basic aluminum frame with steel pivot hardware

  • No dropper post included

  • Limited water carrying options

  • Non-Boost axles limit wheel upgrade options

  • SRAM Level T brakes lack power

Key Quotes
It’s no surprise the Bossnut is so popular because it provides the best all-round trail performance of any bike at this price.
BikeRadar logoBikeRadar
The Bossnut does a remarkable job of hiding its low-cost price tag on the climbs, trucking along just as well as bikes costing more than twice as much.
Pinkbike
I’m going to basically go on about how good this bike is.
Singletrack World logoSingletrack World

Feedback?

View all reviews

Pinkbike
Field Trip: Calibre's $1,400 Bossnut - The Boss of Low Cost

Mar 2020 · Mike Levy

With a price tag of just $1,400, can the Bossnut keep up with its more expensive competition?

Read Review

BikeRadar
2020 Calibre Bossnut review

Jan 2020 · Tom Marvin

Impeccable trail performance for the money and an excellent-value spec too

Highs
  • Good shape

  • Great kit for the money

  • Amazing trail manners

Lows
  • Non-Boost axles limit your wheel upgrade options

  • SRAM Level T brakes lack power with stock 160/180mm rotors

Read Review

MBR
Calibre Bossnut - MBR

Dec 2019 · Alan Muldoon

Calibre Bikes do it again. If you want a full-suspension bike that's a total blast without blowing your budget, you have to get the Calibre Bossnut.

Highs
  • New sleeker frame profile reflects the improved ride quality.

Lows
  • It’s no longer the best bike for under £1k.

Read Review

off.road.cc
Calibre Bikes Bossnut 3 review

Sep 2019

The 2020 Calibre Bikes Bossnut 3 hit the Go Outdoors shelves in August this year boasting new geometry, better components and dare I say it, even better value. Here at off-road.cc, we love this budget busting trail bike, its fun, its upgradable and in its full suspension form it’s a great, accessible introduction to mountain biking.

Read Review

Singletrack World
2020 Calibre Bossnut First Ride Impressions - Super affordable fun!

Aug 2019 · Andi Sykes

First ride impressions of the 2020 Calibre Bossnut, a bike that proves that you don't need to spend a fortune to have fun on 2 wheels.

Read Review

Geometry
Specs
Build
Frame

6061 Hydroformed alloy frame, tapered headtube, forged rocker link, 130mm travel, 12 x 142mm bolt through rear end

Fork

Rockshox Recon RL Solo Air 130mm, alloy tapered steerer, 15 x 100mm Maxle, gloss black with fast black stanchions

Travel130mm

Spring TypeAir

Shock

Rockshox Monarch R, custom tune, 130mm travel, 190 x 51 eye to eye, gloss black.

Travel130mm

Headset

FSA No. 57E Orbit tapered

Stem

Calibre 45mm length, 31,8mm bar

Handlebar

Calibre Alloy, 780mm length, 30mm rise, 31.8mm OD

Saddle

Calibre Trail

Seatpost

Calibre Alloy, 30.9 x 350mm

TypeRigid

Pedals

Plastic platform test pedals

Groupset
Rear Derailleur

SRAM SX Eagle

Crank

SRAM SX Eagle Powerspline, 170, 32T

Shifters

SRAM SX Eagle

Cassette

SRAM 12 Speed, 11 - 50T

Brakes

SRAM Level T

TypeSRAM Level T Hydraulic Disc

Wheels
Rims

WTB ST i29 TCS 2.0

Front Hub

Formula 32H, 6 bolt

Rear Hub

Formula 32h, 6 bolt

Tires

WTB Vigilante High-Grip Comp, 27.5 x 2.3 front. WTB Trail Boss comp, 27.5 x 2.25 rear

Rider Notes
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First added March 27

Last updated May 6

Not listed for 1,119 days