Long days in the saddle, muddy trails, sand, grit and dirt – after a while even with plenty of TLC you're going to need to change a few components. So why not upgrade while you're at it? With bargain mountain bike groupsets like these, you'll get a whole lot more for your money.
Don't forget to check out our buyer's guide to mountain bike groupsets for all the info you need, and once you've got your new components, keep them in tip-top condition with a regular clean and lubrication.
Shimano XTR M9000 1x11spd groupset
For those yet to switch to a 1x11 setup, this could be the perfect opportunity. We put this groupset through its paces and were impressed by the precise shifting, solid chain retention and light action.
Shimano XT M785 MTB groupset with double crankset
With a whopping 60% off this Shimano XT groupset will give you all the gears you need for winter trail riding. The double chain ring may be falling out of favour in some quarters, but it does give you a good range to get up those hills. XT promises smooth shifting and we rated crankset 4.5 out of 5 when we reviewed it. Durable, efficient and at this price - great value for money.
Shimano XTR-XT M985 Race Transmission groupset
Get ready to race with the Shimano XTR-XT groupset. With 30 and 42t double chainrings and 11-34t on the cassette, this 2x10 set combines an XTR M985 chain set with XT shifters for a setup that's designed for pushing your riding hard and fast.
Shimano XT M8000 2x11spd MTB groupset
Fancy 2015 tech at a discount price? The Shimano XT M8000, revealed to the world in April 2015, and includes a whopping 11-40t cassette and a clutch-equipped rear derailleur to prevent those annoying chain drop moments.
Shimano XTR M9050 Di2 11spd groupset (2x11)
Electronic shifting for mountain bikes arrived this year in what was probably the most hotly anticipated product of the year: Shimano XTR Di2.
Get the lowdown on what we thought of the Shimano XTR M9050 Di2 Groupset when it landed in our offices earlier this year, and read how it fared after several months of use and abuse in our groupset review.
You'll have to be quick with this one though – numbers are extremely limited!
Now you've treated yourself, how about sorting out Christmas presents for everyone else? We've got a huge range of Christmas gift ideas all in one handy location.