Shimano Deore XT M8120 Upgrade Kit

The complete conversion kit for Shimano XT 12 x 2-speed components

Shimano XT M8100:

The new Shimano XT 12-speed components, designed for use ranging from cross-country to enduro. The XT components designated 8100 are designed for 1x12 and 1x12-speed drivetrains. The legendary durability and performance of XT MTB parts is now also available in a 12-speed version. The new Deore XT M8100 series boasts a host of technical highlights, including Shimano’s groundbreaking 12-speed Micro Spline cassettes, available with a range of 10-45T or 10-51T, 1x12- or 2x12-speed Hollowtech II cranksets, powerful two- and four-piston brakes, I-Spec EV shifters, high-precision 12-speed rear derailleurs and front derailleurs, Ice Tech Frezza brake discs with their outstanding heat dissipation, as well as the WH-M8100 and WH-M8120 wheelsets for XC and enduro use.

Shimano XT RD-M8120 rear derailleur:

The XT RD-M8120 SGS long cage rear derailleur for use with Shimano 12x2 drivetrains. Designed for the maximum cassette range of 10–45 teeth. The XT Shadow Plus 8100 rear derailleur shifts with extreme precision, speed and smoothness. The new, slimmer design and extremely precise machined fits ensure high shifting precision and a long service life. With the ability to adjust the friction damper as desired via a screw mechanism, the system can be tuned to prioritise maximum stability or minimal operating forces. Furthermore, the rear derailleur features an even slimmer profile, which protects it from damage and further reduces operating forces thanks to the flat angle of attack.

Shimano XT FD-M8100 Front Pull derailleur:

The XT 12-speed FD-M100 front derailleur utilises Side-Swing technology. This delivers significantly better shifting performance. Designed specifically with modern trail bikes in mind, the Side-Swing derailleur offers 15 mm more clearance between the seat tube and the tyre, whilst the completely new and optimised cable routing and actuation drastically reduce the operating forces required for shifting. These front pull derailleurs are only compatible with frames designed for them. The shift cable is routed from the front and the outer cable housing is routed all the way to the derailleur. A classic shift cable routing from above or below is not possible with these derailleurs.

• Shimano XT High Direct Mount Derailleur:
  with the High Direct Mount, the derailleur is mounted directly onto frames designed for this purpose; the bolt spacing is 60 mm vertically. Thanks to the slotted holes, this derailleur can be adjusted for height.
• Shimano XT Low Direct Mount Derailleur:
  the Low Direct derailleurs are mounted either directly onto frames designed for this purpose; the bolt spacing is 22.1 mm horizontally and features an offset at the mount. Not compatible with E-Type derailleur mounts
• Shimano XT Mid Clamp Mount Front Derailleur:
  The seat tube clamp is mounted approximately 10 cm above the centre of the bottom bracket. The inner diameter of the clamp is 34.9 mm; reducer sleeves for 31.8 mm and 28.6 mm are included in the scope of delivery.

Shimano XT SL-M8100 Rapidfire shift lever:

The XT Rapidfire 12-speed SL-M8100 shifters can be fitted via I Spec EV direct mounting to current Shimano disc brakes with I Spec EV mounts, or via classic mounting with a handlebar clamp. Operating forces have been reduced by 35 per cent thanks to a modified gear ratio combined with lower cage tension at the rear derailleur. However, thanks to a redesigned internal mechanism, the M8100 shifter shifts 20 per cent faster, allowing the rider to react even more quickly to changing road conditions. The shifters feature a dual-textured, non-slip surface and are equipped with all the latest high-end technologies such as Multi-Release, Instant-Release and 2-Way-Release.

Shimano I Spec EV:

The new I-Spec version of the Shimano XTR shifters and brakes offers a wide adjustment range – 14 mm laterally and 60 degrees of rotation – ensuring optimal shifting ergonomics. With the I-Spec EV version, the shifter can be mounted on XTR M9100/9120 brake levers in a space-saving manner. Furthermore, mounting via the new standard provides a 14-millimetre lateral adjustment range, and the shifter can also be rotated by 60 degrees. The new I-Spec EV version is not compatible with older brakes.

Optional Shimano XT CS-M8100 cassette:

The Shimano XT 12-speed CS-M8100 cassette, available with 11–45 teeth for 2x12-speed drivetrains, offers maximum gear range. At the same time, it is also the most carefully spaced cassette and, thanks to Hyperglide+, shifts superbly even under load. The close spacing enables precisely calculated gear changes without large, noticeable jumps or gaps, which saves power and energy and helps maintain flow on the trail in all situations. The cassettes feature an aluminium spider construction; the two largest sprockets are also made of aluminium, whilst the remaining ten are made of steel, ensuring an excellent, balanced ratio of robustness and durability on the one hand, and low weight on the other.

Optional Shimano XT CN-M8100 chain:

The chain is perfectly matched to the 1x and 2x 12-speed Shimano MTB chainrings with Dynamic Chain Engagement+ (DCE+) tooth profiles. The XT HG chain has been completely redesigned and features even finer, precision-machined contact surfaces with the sprockets and chainrings, particularly on the inner links. Furthermore, the inner links are chrome-plated, making them even more durable whilst delivering outstanding shifting performance when both upshifting and downshifting.

Contents of the Deore XT 8100 12x2 groupset:

• Shimano XT rear derailleur RD-M8100
• Shimano XT shift lever SLM 81000, Rapidfire 12x2-speed, with handlebar clamp, or I-Spec EV direct mount
• Shimano XT cassette CS-M8100, 10-45 tooth, Micro Spline 12-speed
• Shimano XT chain CN-M8100, 114, 126 or 138 links including chain lock
• Inner cables and outer cable housing, black

Compatible bottom bracket shell / bottom bracket:

• BSA thread: BC - 1.37 x 24T, bottom bracket width 68–73 mm, Shimano BBMT800B bottom bracket
• Pressfit 92:Press-fit diameter 41 mm, bottom bracket width 89.5–92 mm, Shimano BBMT800PA bottom bracket
• BB30 OS: Press-fit diameter 42 mm, bottom bracket width 84.5 mm, Shimano SMBB9142A bottom bracket
• BB30: Press-fit depth 42 mm, bottom bracket width 68–73 mm, compatible bottom bracket cups
  Wheels Outboard Item No.: BB30-OUT
• BB30A: Press-fit depth 42 mm, bottom bracket width 73 mm (asymmetrical), compatible bottom brackets:
  Wheels Outboard Item No.: BB30A-OUT-SHIM
• Pressfit 30: Press-fit diameter 46 mm, bottom bracket width 68–73 mm, compatible bottom brackets:
  Wheels Outboard Item No.: PF30-OUT
• Pressfit 30A: Press fit 46 mm, bottom bracket width 73 mm asymmetrical, compatible bottom brackets:
  Wheels Outboard Item No.: PF30A-OUT-SHIM
• BBright: Press fit 46 mm, bottom bracket width 79 mm, compatible bottom brackets:
  Wheels Outboard Item No.: BBRIGHT-OUT-1
• 386EVO: Press fit 46 mm, bottom bracket width 86.5 mm, compatible bottom brackets:
  Wheels Outboard Item No.: 386EVOBB-SHIMAC
• Trek BB90/95 press-fit 37 mm, bottom bracket width 90/95 mm, compatible bottom brackets:
  Wheels replacement bearings Part No: SB-24X37 plus seals and spacers Part No: SHIM-SPACER-PK
• T47 thread: M47x1, bottom bracket width 68–132 mm, compatible bottom brackets:
  Wheels Outboard Part No: T47-BB-SHIM-AC

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com