Calibre Bike Covers — Bossnut, Two.Two & Sentry

Calibre is a British brand making value-focused mountain bikes — the sort bought as a first proper trail bike and then ridden all year round. They earn their keep in the wet, and with wide bars and mud-caked tyres they rarely make it past the hallway, so they tend to live outside against a wall or under a lean-to.

Every Calibre model in our fit database takes the XL / MTB, the wider of our two covers.

Which BikeParka fits your Calibre?

Accessories change the shape of a bike more than the frame does. A rack, panniers, a bar bag, a top box or a rear child seat all add bulk, and mudguards add length at both ends. If you are unsure how yours will sit under the cover, send us your exact bike model and accessories and we'll check before you order.

All BikeParka covers are made from waterproof, seam-sealed ripstop fabric, and they're PFAS- and PFC-free. Adjustable toggles draw the cover in around the bike on windy days, and each one packs into its own Stuff Sac. The URBAN has built-in lock-through panels so cover and bike can be secured together; the STASH and XL / MTB have brass eyelets at the hem for threading a cable lock.

Which size cover?

It comes down to handlebar width. The XL / MTB takes handlebars up to 100cm, so it is the one for mountain bikes, trekking bikes, bigger frames, bulkier e-bikes, or a standard bike with a rear child seat — and it is the cover we recommend across the whole Calibre range. The STASH and the URBAN are the same size and the same fit as each other, and they suit standard bikes with handlebars up to 63cm: road, gravel, hybrid, commuter, city and standard e-bikes. Between those two, the difference is locking: the URBAN has built-in lock-through panels, while the STASH has brass eyelets at the hem for a cable lock.

Calibre cover questions

Which cover fits a Calibre Bossnut?

The XL / MTB. It is cut for handlebars up to 100cm, which gives the Bossnut room to spare.

Is there a cover for the Calibre Two.Two?

Yes, the XL / MTB. The Two.Two, the Line, the Dune and the Triple B all sit within its 100cm handlebar limit.

What about the Calibre Sentry?

The Sentry takes the XL / MTB too. Every Calibre in our fit database takes the same cover, so there is no guesswork between models. If yours carries a rack or a rear child seat, the XL / MTB is still the right choice.