Shimano XT SL-M8000-B-I 2-/3-/11-speed Shifter w/ I-Spec - black/11-speed

Shimano XT SL-M8000-B-I 2-/3-/11-speed Shifter w/ I-Spec

Item number: 43931
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The XT SL-M8000-B-I shifter by Shimano - I-Spec and improved ergonomics


The Shimano XT SL-M8000-B-I shifter is designed according to the I-Spec (B) principle, which allows for a space-saving integration of shifter and brake lever. This also saves weight on the handlebars and improves the look. The handle, which can be flexibly adjusted in its position, has ergonomic levers with different structures. It comes with an Optislick inner cable, which reduces the effort required for shifting by 20%. The Vivid Index mechanism, always known for crisp feedback, has been further optimised. The left XT shifter can be used for 2x11-speed as well as for 3x11-speed drivetrains without a mode converter.
As a Rapidfire Plus shifter, the SL-M8000-B-I can downshift several gears at once and features 2-Way Release technology, which allows the shift cable to be released by both pulling it with the index finger and pushing it with the thumb. Of course, Instant Release for accelerated gear changes and - in the 11-speed version - Multi Release for the fastest possible shifting in both directions are also on board.

Specifications:

Series:
Deore XT M8000
Application:
Cross Country, All Mountain
Gearing:
2/3x, 11-speed
Mount:
I-Spec I (B)

Technical Information:

Type:
Rapidfire Plus
Body Material:
Aluminium
Lever Material:
aluminium (main lever), composite material (GFRP)/ steel (release lever)
Cable:
stainless steel (Optislick)
Cable Housing:
OT-SP41

Adjustment Options:

  • cable adjust
  • position adjust

Compatibility:

MTB 2x11-speed:
Front Derailleur:
FD-M9020, FD-M9025, FD-M8020, FD-M8025, FD-M7020-11, FD-M7025-11, FD-M5100
Crank:
FC-M9000-2, FC-M9020-2, FC-M9020-B2, FC-M8000-2, FC-M8000-B2, FC-M7000-2, FC-M7000-B2, FC-M5100-2, FC-M5100-B2, FC-MT700-2, FC-MT700-B2, FC-MT600-2, FC-MT600-B2
Rear Derailleur:
RD-M9000, RD-M8000, RD-M7000-11, RD-M5120, RD-M4120
Cassette:
CS-M9001, CS-M8000, CS-M7000-11, CS-M5100-11
Chain:
CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500
Brake Lever:
I-Spec B

MTB 3x11-speed:
Front Derailleur:
FD-M9000, FD-M8000
Crank:
FC-M9020-3, FC-M8000-3
Rear Derailleur:
RD-M9000-SGS, RD-M8000-SGS
Cassette:
CS-M9001, CS-M8000, CS-M7000-11, CS-M5100-11
Chain:
CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500
Brake Lever:
I-Spec B

Features:

  • max. number of gears per shift: 4 (main lever, rear)
  • ergonomic design for long untroubled riding pleasure
  • 20% easier rear shifting
  • longer lever body: uniformly stable shifting operations
  • non-slip main lever - thumb operation
  • wider operating surface of the release lever - thumb operation
  • improved Vivid Index mechanism (compared to SL-M780)
  • Optislick inner cable with a minimal galvanic coating for more efficient cable routing and corrosion resistance
  • 2x bearings
  • painted body and main lever

Technology:

Rapidfire Plus
Rapidfire Plus is a type of Shimano shift lever construction that has been common in the mountain bike sector since 1985. Two levers, the main lever and the release lever, are used instead of a twist shifter. Rapidfire Plus shift levers, as the name suggests, ensure fast shifting. In addition, depending on the model, it is possible to downshift up to three gears with one shift stroke.

2-Way-Release
With 2-Way-Release, the shifter can be pressed and pulled to shift to the smaller sprocket or chainring. This allows you to adjust the shifting process to your personal preferences. Most Rapidfire Plus shifters are equipped with 2-Way Release.

Instant Release
With Instant Release, the spring and thus the cable are released immediately when the lever is actuated, which ensures an enormously fast shifting process. The delay caused by a two-step shifting process with click and release is eliminated, so that the gear change is considerably accelerated and improved.

Multi Release
With the Multi Release, which only affects the right-hand shift lever, two gears can be shifted with one actuation of the release lever without loss of shifting speed. This is independent of whether you use a Top-Normal or a Low-Normal rear derailleur.

I-Spec
I-Spec enables the connection between the brake lever and shift lever on MTB derailleurs from Shimano. The main advantages are a cleaner look at the cockpit, more space on the handlebars and, of course, weight savings.

Note from the manufacturer:

The I-Spec shifters have a new mount (Version B) as of 2014. First of all, there is no compatibility with brake levers with the old I-Spec mount. However, they can be made compatible with the old I-Spec brake levers by using a connecting bolt , provided the handle diameter on the handlebar is smaller than 32 mm. For handlebar grip diameters from 32 to 36 mm, there is no possibility to combine the XT I-Spec B shifter with older I-Spec brake levers.

Models:

2/3x:
Mount:
left
Manufacturer Number:
I-SLM8000BILBP

11-speed:
Mount:
right
Manufacturer Number:
I-SLM8000BIRAP

Contents:

  • 1 x Shimano XT SL-M8000-B-I shifter
  • 1 x Shimano cable (1800 mm or 2050 mm)
  • 1 x Shimano cable housing (1320 mm or 1880 mm)
  • 2 x or - 3 x Shimano 6 mm sealed end caps
  • 1 x Shimano long nose end cap (only for 11-speed)


Weight:

  • black/2/3 speed: 107 g
  • black/11-speed: 117 g
  • 100 day return period
  • Online since 1998

Models:

  • black/2/3 speed, in stock
    51.92€
  • black/11-speed, in stock
    34.61€

Customer Reviews (6)

4.5

Customer Reviews (6)

4.5/5.0
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Give us your opinion on this product.

by Jamie H. on 09.02.2024
verified purchase
item: black/11-speed

It's a very good product, but if course you are a little limited with bar adjustment being Ispec B.

Is this review helpful?
by Jan B. on 17.07.2020

Habe von SLX auf XT 1x11 gewechselt und der Unterschied ist verblüffend! Die Schaltvorgänge sind präziser und schneller, die Hebelwege kürzer. Im Zusammenspiel mit dem XT-Schaltwerk funktioniert die Schaltung auch auf einer Sunrace 11-46T Kassette einwandfrei.

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by Kai-Uwe K. on 19.03.2019
verified purchase
item: black/11-speed

Habe von XT 3x10 auf XT 1x11 umgerüstet . Bin begeistert vom knackigen Schaltverhalten und der Präzision . Rad sieht einfach aufgeräumter aus , ohne das 3-fach Gedöns .

Is this review helpful?
by Samuel B. on 24.07.2017
verified purchase
item: black/11-speed

Knackiges Schalten. Langer Daumenschalthebel. Einfache Montage an Bremshebel. Super aufgeräumtes Cockpit.

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by Samuel B. on 24.07.2017
verified purchase
item: black/11-speed

Habe meinen 3x10 XT Antrieb auf 1x11 umgerüstet. Kurbel behalten und mit neuem 10fach Kettenblatt bestückt. Funktioniert. Leider ist die Kettenlinie für 11fach sehr steil, so dass die Zähne des 10fach Kettenblatts nicht gleich gut führen wie die eines 11fach Kettenblatts.

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by Patrick T. on 07.12.2015
verified purchase
item: black/11-speed

Modèle de shifter compatible avec des freins XT de génération précédente (M785) pour autant qu'ils soient compatible i-spec B!
Ne pas oublier d'acheter le kit à 4.95€ qui va avec...

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Give us your opinion on this product.