Blog

12-speed just got real with Shimano's new Deore XT and SLX groupsets

12-speed just got real with Shimano's new Deore XT and SLX groupsets

If you've been longing after a 12-speed drivetrain but don't have XTR cash to drop then today is a good day: Shimano has announced its new Deore XT and SLX groupsets, both bringing 12-speed technology to the masses. 

XT M8100 and SLX M7100 both use the new MicroSpline freehubs, meaning you can run the 10-51 or 10-45t cassette, enabling a huge gear range when used in conjunction with the 1x12 or 2x12 speed cranksets. On top of that, all cassettes from both groupsets use Shimano's Hyperglide+ technology, so shifting is better than ever. Weight-wise you're looking at 470g for an XT 10-51, and 461g for 10-45, and with SLX it's 534g for the 10-51 and 513g for the 10-45. Of course, the XT and SLX cassettes aren't groupset-specific, so you can use and SLX cassette with an XT rear mech or vice-versa. 

Both also come with 2 or 4-piston brake options, which is the first time SLX has offered a 4-piston brake, and use the brand new IPSEC-EV standard shifters that bolt neatly to the brake levers. For anyone wanting to run 2x, the new MONO left-hand shifter shifts the front mech up and down with precision using just the single shift paddle. 

Cranksets for both groupset are availble in three chainline options:

- 52mm for O.L.D (Over Lock-Nut Dimension) of 142 or 148mm, giving the narrowest 172mm Q-factor

- 55mm for an O.L.D of 148mm for a wider tyre and frame clearance (Q-Factor 178mm)

- 56.5mm for an O.L.D of 157mm and a wide Q-Factor of 181mm

They're available in 1x or 2x depending on your preference and continue with Shimano's tried and tested Hollowtech II technology blending the best combination of stiffness and weight. 

Because both groupsets are 12-speed, the chain has had to be updated, and the new XT chain features an extended inner plate to improve both chain engagement and retention. It also has chromized roller links which will improve shift smoothness and increase durability. 

Both XT and SLX rear derailleurs use Shimano's Shadow+ tecnology, which keeps them tucked in at the rear end and less likely to pick up damage in a spill, and they have 13t pulley wheels to make your riding quiter and more enjoyable. 

If you want more information and full tech specs on the groupsets you can check them out on the Shimano website and, as ever, when products become available you'll be able to buy them right here on Freewheel

Share