New Shimano XT and SLX groupsets go 12-speed

Building on the experiences of the world’s best mountain bike racers, Shimano has brought its race-winning technology to competitive and enthusiastic mountain bike riders.

Shimano XT SLX 12 speed-8.jpg

 

The new DEORE XT M8100 series, the latest iteration of the original MTB groupset, continues its legacy with high performance features for today’s demanding and adventurous mountain bikers, available from mid-June - July 2019.

 

At the same time the new SLX M7100 series, moulded from the same DNA as XTR and DEORE XT, has been designed to deliver quality performance for those exploring their mountain bike calling, available from end August 2019.

 

DEORE XT - durability and performance for today’s mountain bikers


The new DEORE XT M8100 series includes features such as Shimano’s groundbreaking 12-speed MICRO SPLINE cassette sprockets with either a 10-45T or 10-51T range, 1x12 or 2x12 HOLLOWTECH II cranksets, powerful 2-piston or 4-piston brakes, fully adjustable ISPEC-EV shifters, 12-speed precision-shifting front and rear derailleurs, rapidly cooling ICE TECHNOLOGIES FREEZA rotors and complete XC or Enduro wheelsets, all perfected for today’s mountain bikers.

 

XT_group-set-image_101_zz_zz_zz_zz_zz_zz_img101.jpg

 

Cranksets: The newDEORE XT 1X12 crankset features HOLLOWTECH II crank arms with an integrated bottom bracket axle and hollow crank arm. Chainrings come with a Dynamic Chain Engagement+ tooth profile, which, with its narrow/wide teeth, is key to the improved chain retention, smoothness and quietness of the drivetrain. For secure and fast mounting of the chainring the crank has a direct mount system to simplify how chain rings are changed.

 

FC-M8100-1_32T_C219_2_zz_zz_32_zz_zz_STD_S2.jpg
FC-M8100-2_36-26T_C219_1_zz_zz_36-26_zz_zz_STD_S1.jpg

 

The crankset comes with 28T, 30T, 32T, 34T and 36T chainring options, interchangeable with XTR and SLX rings, has crank length options of 165mm, 170mm, 175mm and 180mm. DEORE XT cranksets are available for three chain lines:

  • 52mm (FC-M8100-1) for Over Lock-Nut Dimensions (O.L.D.) of 142mm or 148mm, giving the narrowest 172mm Q-factor
  • 55mm (FC-M8120-1) for an O.L.D. of 148mm for wider tyre and frame clearance (Q-factor 178mm)
  • 56.5mm (FC-M8130-1) for an O.L.D. of 157mm and a wide Q-factor of 181mm
  • Crankset weights: FC-M8100-1: 620g, FC-M8120-1: 628g, FC-M8130-1: 636g (All 32T; 175mm, w/o BB)
The DEORE XT 2X12 HOLLOWTECH II 36-26T crankset offers the ultimate range when matched with the 10-45T cassette, maximizing the possibilities on all sorts of terrain whilst maintaining small gear steps for a consistent cadence.

 

Shimano XT SLX 12 speed.jpg

 

Two 2x cranksets are available, both featuring a 2-bolt system for fixing the left side crank arm in place on the spindle.The FC-M8100-2 crankset has a 142mm O.L.D. for chain lines of 48.8mm and a Q-factor of 172mm. The FC-M8120-B2 crankset has a 148mm O.L.D. for chain lines of 51.8mm and a Q-factor of 178mm.

 

Weight for the FC-M8120-B2 (36-26T, 175mm, w/o BB) is 672g and for the FC-M8100-2 36-26T, 175mm, w/o BB) is 654g.

 

Cassette: DEORE XT12-speed cassettes come with the MICRO SPLINE fitting system and are available in a 10-45T option for small gear steps or a 10-51T option for maximum range. Both cassettes also feature HYPERGLIDE+, allowing for quick up and downshifts and an extremely quiet drivetrain. The cassettes have an aluminium spider to house ten steel sprockets and two aluminium sprockets for optimum durability and weight. The CS-M8100-12 10-51T cassette weighs 470g and the 10-45T option weighs 461g.

 

CS-M8100-12_10-51T_C260_4_zz_zz_10-51_zz_zz_Standard_S4.jpg
CS-M8100-12_10-51T_C260_3_zz_zz_10-51_zz_zz_Standard_S3.jpg

 

Chain: The new DEORE XT 12-speed HG chain has been redesigned with an extended inner plate to improve chain engagement and retention and comes with chromized roller link plates for enhanced durability and smoother and faster shifting both up and down the cassette. The CN-M8100 chain (113 links + Quick Link) weighs 252g.

 

CN-M8100_C260_1_zz_zz_zz_zz_zz_Standard_S1.jpg

 

Derailleurs: Coming in either single (RD-M8100-SGS) or double (RD-M8120-SGS) chainring variants, the DEORE XT rear derailleur enables precise and quick shifting over a huge gear range. Both derailleurs feature SHIMANO SHADOW RD+ positioning, bump stoppers and 13T pulley wheels to make rides quieter and more enjoyable. Rear derailleurs weights: RD-M8100-SGS: 284g, RD-M8120-SGS: 290g.

 

RD-M8100-SGS_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg
RD-M8120-SGS_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg

 

The DEORE XT front derailleur comes in one specification for both 48.8mm & 51.8mm chain lines but is available forD-type, E-type or M-type mountings. Front derailleur weights: FD-M8100-D: 135g, FD-M8100-E: 106g, FD-M8100-M: 114g.

 

Shifters: With side adjustment and rotational adjustment options the ISPEC-EV shifters, which bolt neatly to the brake lever, offer solutions for tailoring the riding feel. Rubber padding on the paddles and a two-way release enhances shifting even further. The right hand shifter (SL-M8100-IR) uses a multi-release feature to quickly dump cassette gears and, for riders using a 2x12 set-up, a MONO lever on the left (SL-M8100-IL) shifts the front derailleur both up and down with precision. DEORE XT M8100 shifters are also available in a clamp band version. Shifter weights: SL-M8100-IR: 120g, SL-M8100-IL: 73g, SL-M8100-R: 117g, SL-M8100-L: 78g.

 

SL-M8100-R_C219_1_R_zz_zz_zz_zz_STD_S1.jpg
SL-M8100-IR_C219_2_zz_zz_zz_zz_zz_STD_S2.jpg
Shimano XT SLX 12 speed-6.jpg

 

Brakes: DEORE XT brakes calipers are available in an XC-specific 2-piston version or a Trail/Enduro 4-piston version. The 2-piston version shares the same design as the previous XT M8000 version, which means the previous G02A/3A/J02A/3A resin brake pads or G04S/J04C metal pads are compatible, whereas the 4-piston version is a new completely new construction drawn from the XTR M9100 design, sharing the same N03A (resin) or N04C (metal) finned pads (compatible also with D03S or D02S pads).

 

Shimano XT SLX 12 speed-4.jpg

 

The DEORE XT brake levers work with both the XC and Trail/Enduro calipers and come equipped with Shimano’s SERVO WAVE system for quicker engagement, improved power and a shorter free stroke. The brake levers are now angled in two positions against the handlebar for a stiffer brake sensation. The levers also feature a reach adjust dial and a free stroke adjustment screw for simple brake tune-ups on the trail.

 

Shimano XT SLX 12 speed-5.jpg

 

XC style brake kits (BR-M8100-BL-M8100) with rotors (160 mm RT-MT800) and brake pads weigh 392g and Enduro style brake kits (BR-M8120-BL-M8100) weigh 410g including rotors and pads.

 

Rotors: The redesigned DEORE XT-level ICE TECHNOLOGIES FREEZA rotors (RT-MT800) are designed to maximize cooling, resulting in consistent brake performance and longer lasting brake pads. A sandwiched aluminium core, fused in a durable steel outer layer, dissipates heat via the heat fins in the centre.

 

Sizes available are 140mm (88g), 160mm (109g), 180mm (132g) and 203mm (164g).

 

Wheels: Unlike the XTR M9100 series, the Shimano DEORE XT M8100 series offers complete 27.5 and 29” wheels for XC and Trail/Enduro riding.Shimano XC wheels offer a 24mm wide tubeless ready, fully closed rim bed for tyres up to 2.35”.The 28 double-butted straight-pull spokes offer a perfect mix of stiffness and weight (WH-M8100-27.5: 1764g, WH-M8100-29: 1840g) for fast XC riding.

 

WH-M8100-TL-R12-B-275_C219_2_zz_R_zz_zz_zz_zz_S2_draft.jpg
FH-M8110-B_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg

 

On the other hand, DEORE XT Trail/Enduro-specific wheelsets offer a 30mm internal rim width made for tyres up to2.6”. Rear hubs come with zero-dish (O.L.D. 148mm) and the aluminium rims take 28 J-bend spokes to keep these tubeless wheels strong yet light for aggressive riders and riding conditions (WH-M8120-27.5: 1846g, WH-M8120-29: 1932g).

 

Both the XC and Trail/Enduro rear wheels feature E-THRU axles (15mm front, 12mm rear), 148mm O.L.D. widths and come with Shimano’s MICRO SPLINE cassette interface on the rear hubs.

 

Individual DEORE XT front hubs and freehubs are also available in widths of 100mm and 142mm, 110mm and 148mm, and 157mm. Hub weights: HB-M8110: 142g, HB-M8110-B: 147g, HB-M8110-BS: 158g, FH-M8110: 305g, FH-M8110-B: 307g, FH-M8110-BS: 306g, FH-M8130-B: 310g.

 

Main DEORE XT differences to XTR:

  • Complete wheels only at DEORE XT level
  • 28T not 38T chainring
  • I-SPEC EV has 20 degrees rotational angle rather than 60 degrees
  • No dedicated XC brake lever
  • No bottom bracket
  • Less rear derailleur options
  • No dropper post lever
  • 365g weight difference to XTR in like-for-like specification

SLX – for those exploring their mountain bike calling


Like DEORE XT, the new SLX M7100 series also features Shimano’s groundbreaking 12-speed MICRO SPLINE cassette with either a 10-45T or 10-51T range, 1x12 or 2x12 cranksets, a dedicated SLX-level 12-speed chain, 2-piston or 4-piston brakes, fully adjustable ISPEC-EV shifters, optimized front and rear derailleurs and 12-speed ready hubsets, bringing premium technologies to those discovering true mountain biking.

 

SLX_group-set-image_101_zz_zz_zz_zz_zz_zz_img101.jpg

 

Cranksets: The new SLX 1x12 crankset features HOLLOWTECH II technology with an integrated bottom bracket axle and hollow crank arms. Chainrings come with a Dynamic Chain Engagement+ tooth profile, which, with its narrow/wide teeth, aids chain retention, smoothness and quietness of the drivetrain. To securely and quickly mount the chainring the crank is equipped with a direct mount system. The crankset comes with 30T, 32T and 34T chainring options, interchangeable with XTR and DEORE XT rings, and has crank length options of 165 mm, 170 mm and 175 mm.

 

Shimano XT SLX 12 speed-11.jpg

 

SLX M7100 cranksets are available in three chain lines:

  • 52mm (FC-M7100-1) for Over Lock-Nut Dimensions (O.L.D.) of 142mm or 148mm to give the narrowest 172mm Q-factor
  • 55mm (FC-M7120-1) for an O.L.D. of 148mm for wider tyre and frame clearance (Q-factor 178mm)
  • 56.5mm (FC-M7130-1) for an O.L.D. of 157mm and a Q-factor of 181mm
  • Crankset weights: FC-M7100-1: 631g, FC-M7120-1: 638g, FC-M7130-1: 656g (all 32T; 175mm, w/o BB).
The SLX 2x12 HOLLOWTECH II 36-26T crankset offers the ultimate range when matched with the 10-45T cassette, maximizing your possibilities on all sorts of terrain while maintaining small gear steps.

 

FC-M7120-B2_36-26T_C219_1_zz_zz_36-26_zz_zz_STD_S1_draft.png

 

Two 2x cranksets are available, both featuring a 2-bolt system for fixing the left side crank arm in place on the spindle. Much like DEORE XT, the FC-M7100-2 crankset has a 142mm O.L.D. for chain lines of 48.8mm and a Q-factor of 172mm. The FC-M7120-B2 crankset has a 148mm O.L.D. for chain lines of 51.8mm and a Q-factor of 178mm.

 

Weight for the FC-M7120-B2 (36-26T, 175mm, w/o BB) is 682g and for the FC-M7100-2 (36-26T, 175mm, w/o BB) is 674g.

 

Cassette: SLX12-speed cassettes come with the MICRO SPLINE fitting system and are available in a 10-45T option for small gear steps or a 10-51T option for maximum range. Both cassettes also feature HYPERGLIDE+, allowing for quick up and downshifts and an extremely quiet drivetrain. The cassettes have an aluminium spider to house eleven steel sprockets and one aluminium sprocket for the best balance of durability, weight and riding styles. The CS-M7100-12 10-51T cassette weighs 534g and the 10-45T option weighs 513g
Chain: The SLX new 12-speed HG chain has been redesigned with an extended inner plate to improve chain engagement and retention and comes with SIL-TEC roller link plates for smoother running and more durability in all conditions.The CN-M7100 chain (113 links + Quick Link) weighs 252g.

 

CS-M7100-12_10-51T_C260_1_zz_zz_10-51_zz_zz_Standard_S1.jpg
CS-M7100-12_10-51T_C260_3_zz_zz_10-51_zz_zz_Standard_S3.jpg

 

Derailleurs: Coming in either single (RD-M7100-SGS) or double (RD-M7120-SGS) chainring variants, the SLX rear derailleur enables precise and quick shifting over that huge 12-speed gear range. Both derailleurs feature SHIMANO SHADOW RD+ positioning as well as bump stoppers and 13T pulley wheels to make rides quieter and more enjoyable. Rear derailleurs weights: RD-M7100-SGS: 316g, RD-M7120-SGS: 322g.

 

Shimano XT SLX 12 speed-10.jpg

 

The SLX front derailleur comes in one specification for both 48.8mm & 51.8mm chain lines but is available for D-type, E-type or M-type mountings. Front derailleur weights: FD-M7100-D: 135g, FD-M7100-E: 166g, FD-M7100-M: 114g.

 

Shifters: With side adjustment and rotational adjustment options the ISPEC-EV shifters, which bolt neatly to the brake lever, offer solutions for tailoring the riding feel. For riders using a 2x12 set-up, a MONO lever (SL-M7100-IL) on the left shifts the front derailleur both up and down with an extremely light and precise action. SLX M7100 shifters are also available in a clamp band version. Shifter weights: SL-M7100-IR: 121g, SL-M7100-IL: 73g.

 

SL-M7100-IL_C219_1_zz_zz_zz_zz_zz_STD_S1_draft.png
SL-M7100-IR_C219_1_zz_zz_zz_zz_zz_STD_S1_draft.png

 

Brakes: SLX brakes calipers are available in an XC-specific 2-piston version or a Trail/Enduro 4-piston version.The 2-piston version shares the same design as the previous version, which means the previous SLX-level G02S/J02A resin brake pads or G04S/J04C metal pads brake pads are compatible, whereas the 4-piston version is a new completely new construction drawn from the XTR M9100 design, using D03S (resin) or D02S (metal) brake pads pad (compatible also with N03A and NO4C finned pads).

 

BR-M7100_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg
BR-M7120_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg

 

The SLX brake levers work with both the XC and Trail/Enduro calipers and come equipped with Shimano’s Servo wave system for quicker engagement, improved power and a shorter free stroke. The brake levers are now angled in two positions against the handlebar for a stiffer brake sensation. The levers also feature a reach adjust dial for simple brake tune-ups on the trail.

 

XC style brake kits (BR-M7100-BL-M7100) with rotors (160 mm SM-RT70) and brake pads weigh 425g and the Enduro style brake kits (BR-M7120-BL-M7100) weigh 444g including rotors and pads.

 

Rotors: The SLX-level ICE TECHNOLOGIES rotors (SM-RT70) are designed to cool rapidly thanks to a sandwiched aluminum core, fused in a durable steel outer layer, resulting in consistent brake performance and longer lasting brake pads. Sizes available are 140mm (121g), 160mm (133g), 180mm (159g) and 203mm (193g).

 

FH-M7110_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg
HB-M7110_C219_1_zz_zz_zz_zz_zz_STD_S1.jpg

 

Hubs: Individual SLX front hubs and rear FREEHUBs are available in widths of 100mm and 142mm, 110mm and 148mm, or 157mm. The freehub (FH-M7110) features a cassette body with Shimano’s MICRO SPLINE design. Hub weights: HB-M7110: 142g, HB-M7110-B: 147g, FH-M7110: 350g, FH-M7110-B: 354g, FH-M7130-B: 359g.

 

Main SLX differences to DEORE XT:

  • No free stroke adjust on brake lever
  • One aluminium cassette sprocket
  • Less chainring options
  • No complete wheels
  • No multi release on right shifter
  • No textured padding on either shift levers
  • SIL-TEC coating on chain roller link plates
  • No FREEZA technology on rotors
  • 148g difference to XT in like-for-like specification




33 Comments

Mr Anderson, May 30 2019 05:08

Any sort of indication of what the price brackets are going to be for these..?

splat, May 30 2019 05:37

https://www.bike24.c...15.html?q=m8100

 

999,00 €

 

At the launch of the Shimano Deore XT M8100 series, the delivery of the 1x12-speed groupset takes place in a limited packaging including cup and cap.

 

330715_00_d.jpg?v1219d6b738210bd15712dcf

TDFN, May 30 2019 06:14

So why no 9?

DuncanCT, May 30 2019 06:17

Interesting that Bike24 will still ship Shimano stuff to SA. Seem like not a lot left.

DirtyDan, May 30 2019 07:21

Micro spline... It was going well until that point.

Hairy, May 30 2019 07:27

Never thought I would ever say this again .. .but that SLX 2 x crankset looks sexy!

daniemare, May 30 2019 07:30

Dan, Imagine how many people lost interest when Shimano introduced the freehub. Those beloved freewheels, how did we ever move on.

morneS555, May 30 2019 07:32

the death of NX has arrived imo.everybody knows SLX will be better...

EDIT: well...the death of GX then... before you correct me and say GX=slx :P

FrancoisdeVille, May 30 2019 08:58

All that rivets on the SLX cassette looks like zits. I'll probably buy the XT set just for the mug.

Matchstix, May 30 2019 09:13

Come on shimano open the patent

CAAD4, May 31 2019 06:44

Hello Sunrace?

Funsave, May 31 2019 07:36

Amazingly boring video. XT Never going to displace the GX Eagle (which is also cheaper)

Dirt Tracker, May 31 2019 08:48

So, what I need to know is:

 

1) do I need new hubs / free hubs to sport the new 12? 

2) on SLX you don't get the multiple shifting on the rear changer?

3) why did they make the crank so fugly?

 

Nice to see the brakes have 4 pot options on both ranges. To be honest I'm not seeing much reason to change from my NX (maybe I got the only good one judging by the distain for NX here).12 speed, same Hope freehub as I had, full group set internationally cost less than upgrade kit locally. No issues at all. 

Odinson, May 31 2019 08:49

XT stands head and shoulders above GX.

SLX drivetrain with an XT shifter FTW!

Dirt Tracker, May 31 2019 08:57

XT stands head and shoulders above GX.

SLX drivetrain with an XT shifter FTW!

 

Had a couple fo GX 11 sets on different bikes and never liked them at all and always went back to XT. GX aways just felt 'odd'. The NX I've got now actually seems to works better than the GX did on my Evil (slightly bendy shifter leaver aside).

Iron, May 31 2019 10:07

So, what I need to know is:

 

1) do I need new hubs / free hubs to sport the new 12? 

2) on SLX you don't get the multiple shifting on the rear changer?

3) why did they make the crank so fugly?

 

Nice to see the brakes have 4 pot options on both ranges. To be honest I'm not seeing much reason to change from my NX (maybe I got the only good one judging by the distain for NX here).12 speed, same Hope freehub as I had, full group set internationally cost less than upgrade kit locally. No issues at all. 

 new micro spline freehubs for all 12 speed Shimano it looks like .......

DieselnDust, May 31 2019 11:37

Never thought I would ever say this again .. .but that SLX 2 x crankset looks sexy!

You've seem to have strange tastes in aesthetics...

DieselnDust, May 31 2019 11:40

the death of NX has arrived imo.everybody knows SLX will be better...

EDIT: well...the death of GX then... before you correct me and say GX=slx :P

 

 

Nah,....to many GX groupsets committed to OEM's for 2020 model year. The big issue is the Microspline.

And I'll bet they'll have supply issues and we won't actually see any groupsets till November

DieselnDust, May 31 2019 11:41

I do like the hubs. Just wish they made them with an XD Driver...

 

 

And what mounting spline standard are they using on the cranks? Definitely not SRAM but looks similar to Cannondale

L46, May 31 2019 01:50

Can someone please give me a few pointers what the microspline is that everyone is complaining about and what are the cons with this?  Does it break, increase maintenance, cease, attract mud, hates water?  What makes it worse than the Sram 12 speed for instance?

 

I like shimano and currently run an oldish moddified 1x10 Xtr setup and would want to have the pros and cons should I one day be in need for an upgrade to 1x11 or 1x12.

 

Much appreciated

CAAD4, May 31 2019 01:58

You will need a Shimano specific microspline hub to accommodate the 12 speed Shimano cassettes, like an XD driver for Eagle, excluding NX cassettes.

BaGearA, May 31 2019 08:01

Hope are apparently pushing Shimano hard for a license

CAAD4, Jun 01 2019 05:29

I do HOPE they get it.

jaxtersb6, Jun 02 2019 05:20

Outside of Shimano, a DT Swiss Microspline feehub adaptor is available for all Dt Swiss 240 & 350 hubs. Also Industry Nine makes mircospline hubs.  The other worthwhile hubs will catch up eventually.

Ascension, Jun 03 2019 10:14

Sram GX weight : 1754g

XT 1x12 weight : 2117g

 

shimano fail