Mountain Bikes


The Triple B is the Bossnut's big brother.

It has the upgrades that the Calibre team wanted and they turn our award winning Chassis into a right badboy.


For 2018 we've taken on board all the feedback from the last few years and put together a spec package to address every upgrade suggested by reviewers and customers alike.

Ladies Bossnut

The Ladies Bossnut is the same as our award winning flagship mountain bike but with woman’s specific components and suspension tuning.


The Line 10 is our new UK trail focused bike. It comes with a dropper post, 1X drivetrain and a long, slack front end that keeps you in control at speed.


The Astronut is our dirt jump bike.
We developed it so we could go down to Bolehills race track and Monkey bumps trails in Sheffield and have some fun. A purly self indulgant bike by the Calibre team.


The Rake is our 29” wheel trail bike. It is built for speed and effective cornering on UK trails.


We love the Dune and so everyone that rides one, it’s gained a cult-like following in the fat bike world due to it’s on point geometry and high end lightweight spec.


If you are looking for the best entry level bike money can buy then this is the one!