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Shimano Deore XT M8100 Upgrade Kit - 1x12-speed

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Description of Shimano Deore XT M8100 Upgrade Kit - 1x12-speed

Shimano Deore XT M8100 - The world is your canvas.

The original MTB group continues its legacy of remaining the standard for mountainbikers everywhere. Nearly three decades in, the Deore XT brand is defined by its trail-tested durability, reliability and performance. As mountainbiking becomes faster and faster and the terrain even more technical, the M8100 series aims to give the rider the necessary feeling of confidence and safety.

Following the principle of passing on the experiences and technologies of the top series, the Deore XT incorporates the innovations of the high-end XTR components. Accordingly the new 12-speed groupset features of course Micro Spline and Hyperglide+.

Content of the Shimano Deore XT M8100 1x12-speed Upgrade Kit:

  • Deore XT SL-M8100-IR Rapidfire Plus shifting lever - I-Spec EV - right
  • Deore XT RD-M8100-SGS Shadow RD+ rear derailleur - long
  • Deore XT CS-M8100 cassette - 10-51 teeth
  • Deore XT CN-M8100 chain - 126 links
    (incl. SM-CN910-12 Quick Link chain connector)

Please note that the compatibility of the existing components must be guaranteed. In case of doubt please contact the Bike24 Service Team.

Shimano Deore XT SL-M8100 Rapidfire Plus shifting lever

The Shimano Deore XT SL-M8100 shift lever allows quick and easy shifting, so the rider can solely focus on the Trail ahead. Compared to its predecessor, the SL-M8000, the shifting operation force could be reduced by 35 % while the main lever access is now 20 % faster thanks to a clever design. In addition, the lever's rubberized contact surface ensures maximum ergonomics.

The I-Spec EV construction already familiar from the XTR M9100 has also found its way into the Deore XT M8100 components. With this technology the shifting levers can be mounted directly to the brake lever, what makes it possible to dispense with a clamp and to significantly increase the adjustment range. I-Spec EV allows 14 mm for longitudinal and 60° for rotational adjustment so that each rider can make a setup to suit his or her individual anatomy or preferences.

Proven features such as Rapidfire Plus, 2-Way-, Instant- and Multi-Release have of course been adopted by the SL-M8100 shifting levers from its predecessors.

Shimano Deore XT RD-M8100-SGS Shadow RD+ rear derailleur

The Deore XT RD-M8100-SGS rear derailleur provides fast and precise shifting operations over a wide gear range. Guide and tension pulleys with 13 teeth and sealed bearings as well as a rubber damper reduce noise and increase ride comfort. They also improve the chain's grip under all conditions.

Shimano Deore XT CS-M8100 cassette

The Shimano Deore XT CS-M8100 cassette features the Hyperglide+ technology which guarantees high shifting speed, precision and smoothness when shifting up and down and contributes to an extremely quiet drivetrain.

The 10-51 teeth cassette covers a wide gear range and has an aluminium spider construction. The two largest sprockets are made of aluminium as well. This not only reduces the weight, but improves also robustness and longevity.

Shimano Deore XT CN-M8100 chain

The Deore XT chain has been optimized from the ground up and is an integral part of the new 12-speed drivetrain. With its high precision formed contact surfaces to Dynamic Chain Engagement+ chainring and Hyperglide+ cassette teeth, the Shimano Deore XT CN-M8100 chain provides fast, precise and smooth shifting in both directions even under highest loads. Chrome-plated inner plates increase the durability noticeably.

Including Shimano SM-CN910-12 Quick Link connector.

If you need more detailed information about the single parts of the groupsets check the articles in the referring categories.
Included in delivery: 12-speed Upgrade Kit consisting of:
SL-M8100-IR Rapidfire Plus shifting lever (right)
RD-M8100-SGS Shadow RD+ rear derailleur (long)
CS-M8100 cassette (10-51 teeth)
CN-M8100 chain (126 links)
Material: aluminium (painted), glass fiber reinforced polymer (GFRP), steel
Material of sprocket: sprockets 1 to 10: steel
sprockets 11 & 12: aluminium (anodized)
spider: aluminium (painted)
  • Description
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Fact Sheet of Shimano Deore XT M8100 Upgrade Kit - 1x12-speed

Product Name: Shimano Deore XT M8100 Upgrade Kit - 1x12-speed
Manufacturer: Shimano Parts
Item Code: SHI442565
activity: Bike
usage bikesport: MTB
gear ratio: 10-12-14-16-18-21-24-28-33-39-45-51
number of chainrings: 1, 2
shifting system: 12-speed
front derailleur max. teeth: 51
rear derailleur cage: long
rear derailleur capacity: 41
Color: Black
manufacturer item code: ISLM8100IRAP (shifting lever)
IRDM8100SGS (rear derailleur)
ICSM8100051 (cassette)
ICNM8100126Q (chain)
Manufacturer page:
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Item includes
Currently not in stock Delivery time 7-8 weeks Shimano Deore XT SL-M8100 Rapidfire Plus Shifting Lever - I-Spec EV - 12-speed - right
Still 10+ in stock in stock, delivery time 10-14 days Shimano Deore XT RD-M8100-SGS Shadow RD+ Rear Derailleur - long - 1x12-speed
Currently not in stock Not deliverable Shimano Deore XT CS-M8100 Cassette 12-speed – Sprocket Ratio 10-51 teeth
Still 10+ in stock in stock, delivery time 10-14 days Shimano Deore XT CN-M8100 Chain 12-speed - with Quick Link – Number of Links 126
  • Description
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(3 Ratings)
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Customer Reviews
Ich machte das Upgrade von einer 1x11 GX Schaltung mit einem 28er Kettenblatt und einer e13 trs 9-46 Kasette aus.
Der Einbau ging problemlos und war innerhalb einer Stunde inkl. Freilaufumrüstung erledigt.
- kürzere Schaltwege für das schalten auf ein grösseres Ritzel
- bei den kleinen Ritzel ist der Hebel sehr leichtgängig, je grösser das Ritzel, desto grösser wird auch die Bedienkraft

- subjektiv grössere Bandbreite mit einem 30er Kettenblatt als mit der 'alten' e13 9-46er mit 28er Blatt

- das Schaltwerk ist recht lang
- einfach einzustellen
Just to comment previous reviewer.
Triggered... You should do you research before upgrading. For eg. my 2016 Canyon frame needs a new derailleur hanger to be able to fit any 12spd kit... Not sure about chainrings, though. Some say chain's internal width have not changed compared to 11spd.
Upgrade Kit??? Wollte mein Bike mit der XT M8000 von 11fach auf 12fach upgraden, leider musste ich feststellen das der Kit nicht mit einer Shimano M8000 kompatiebel ist, man benötigt zusätzlich noch Kettenblatt und Kurbel von der 12fach Gruppe M81000, da das Kettenblatt der M8000 mit der 12fach HG+ Kette nicht kompatiebel ist. Des weiteren habe ich bemerkt, das das Schaltauge von meinem BMC FS01 (mit XT M8000 11fach) nicht mit dem Schaltwerk der M8100 kompatiebel ist! Man kann trotz komplett lösens der Anschlagschraube und einstellen des Zuges nicht auf den 1. Gang schalten! (und ich bin kein Bäcker😜) UPGRADEKIT??? Für was? wenn es nicht mit einer 11fach Schaltung kompatiebel ist!

Bike24: Manchmal erfüllt ein Produkt einfach nicht unsere Erwartungen. Schön ist das selten, dafür so gut wie immer lösbar. Nimm bitte Kontakt mit unserem Kundeservice auf und wir besprechen gemeinsam anhand Deiner Anforderungen und Wünsche die beste Lösung.
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