Calibre Bossnut Calibre Sentry Triple B Beast Headset Bearing Kit

Service the headset on your Calibre Bossnut Calibre Sentry Triple B Beast with this replacement bearing kit. Each kit contains sealed cartridge bearings matched to the original sizes and angles – a straight swap for the worn bearings in your frame.

What's included

Upper and lower headset bearings for the Calibre Bossnut Calibre Sentry Triple B Beast. Bearings only: no crown race, spacers or other hardware are included.

When to fit new bearings

Headset bearings live right where water and grit collect, so they wear long before the rest of the bike. If your steering has become rough, indexed or noisy, a new set restores the light, precise feel the bike had when new.

Bearing details

• Double-sealed against water, grit and road spray
• Precision-ground races for a long service life
• Direct replacement for the original bearings – no modification needed

Please note: photos are for reference only. The bearings you receive are correct for the listed sizes but may differ in appearance from those shown.

Can't find a kit for your bike? Get in touch with your make, model, year and any measurements you have (inner diameter, outer diameter, height, angle). We'll help you find the right bearings – and if you're the first to confirm sizes for a bike we don't yet cover, we'll send you a discount code as a thank you.

EasyBikeParts is an independent supplier of aftermarket cycle components. We are not affiliated with, endorsed by or connected to Calibre. Brand and model names are used solely to identify fitment.