The Deore XT M8100 is Shimano’s newest weapon in search of mountain bike fun and adventure. As the first group of components designed specifically for mountain bikes ever, the Deore XT M8100 continues its success story based on high durability and reliable performance.
The original mountain bike group continues its legacy: XT M8100 from Shimano
The original mountain bike group continues its legacy of remaining the standard for mountain bikers everywhere. Nearly three decades in, the DEORE XT brand is defined by its trail-tested durability, reliability and performance. Recognizing that today’s mountain bikers are riding faster and confidently on more technical terrain, the legacy of DEORE XT is more important than ever. In 2019, our pinnacle mountain bike technologies will trickle down to SHIMANO DEORE XT M8100.
Scope of delivery – Shimano XT M8100 1×12-speed Upgrade-Kit 10-51 I-Spec EV
- XT SL-M8100 12-speed Shift Lever with I-Spec EV right incl. gear wire 2050mm & gear cable 1800mm
- XT RD-M8100 12-speed Rear Derailleur SGS
- XT CS-M8100 12-speed Cassette 10-51 incl. lock ring
- XT CN-M8100 12-speed Chain 126 Links with Quick-Link SM-CN910-12
The Shimano XT RD-M8100 12-speed rear derailleur for 10-45 cassette features an elegant yet aggressive angled design and an attractive anodised aluminium surface. The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.
The Shimano CS-M8100 is the suitable cassette for new XT 12-speed group with MICRO SPLINE. HYPERGLIDE+ drivetrain’s redesigned cassette and chain promotes the next generation of MTB riding by enhancing speed, shifting efficiency and smoothness over any terrain.
The special design of the new Shimano XT CN-M8100 12-speed chain ensures improved shifting performance and smoother running – even in rough terrain. The SM-CN910-12 Quick-Link closure, which is also new, makes installation easy.
Features – Shimano XT SL-M8100 I-Spec EV 12-speed Shift Lever right Rapidfire Plus
- I-Spec EV – securing the shift lever on the brake lever
- 20% quicker lever access time
- Compact design and lightweight
- Quicker lever access and light operation force maintains rider concentration
- Greater flexibility and action-optimized cockpit layout
- 2-WAY RELEASE for instant push/pull movements
Product features
- Use: MTB
- Group: XT M8100
- Model: RD-M8100-IR
- Shifter Type: Rapidfire Plus
- Mounting: I-Spec EV
- Gear rear: 12-speed
- Optical Gear Display: No
- Instant Release: Yes
- Multi Release: Yes
- 2-Way Release: Yes
- Cable adjust: Yes
Material
- Main lever body: Aluminum Painted
- Lever body:Â Aluminium, GFRP
Weight
- Â approx. 117g (manufacturer information)
Features – Shimano XT RD-M8100 12-speed Rear Derailleur
- Shadow RD+ For optimal chain retention
- RD-M8100-SGS Works with 12-speed 10-51-teeth cassettes
Product features
- Use: MTB
- Group: XT M8100
- Model: RD-M8100
- Mount: Direct Mount
- Technology: Shadow RD+
- Gradations:Â SGS-Type
- Compatible chain:Â CN-M8100 12-speed
- Max. teeth large sprocket: 51T
- Min. teeth large sprocket: 45T
- Max. teeth small sprocket: 10T
- Min. teeth small sprocket: 10T
- Max. Front Difference:Â 0T
- Total Capacity: 41T
Pulley cage
- Type-SGS long
Material
- Aluminum
- GFRP
- Stainless steel
- Steel
Weight
- approx. 284g (manufacturer information)
Features – Shimano XT CS-M8100 12-speed Cassette 10-51
- Hyperglide+Â quicker shifting
- Material Aluminium & steel
- BEAM SPIDER construction Increased acceleration
- MICRO SPLINE 10T lowest sprocket realized by new FREEHUB body construction
Product features
- Use: MTB
- Group:Â XT M8100
- Model: CS-M8100-12
- Type: Hyperglide+
- Gear:Â 12-speed
- Compatible chain:Â CN-M8100 12-speed
Gradation
- 10-51 (10-12-14-16-18-21-24-28-33-39-45-51 teeth)
Material
- Aluminium
- Steel
Weight
- approx. 470g (manufacturer information)Â
Features – Shimano XT CN-M8100 12-speed Chain 126 Links with Quick-Link SM-CN910-12
- New Drive System Dedicated Design Chain
- Greater chain retention to extend portion on the end of inner plate to firmly hold the tooth both front and cassette sprocket
- Enhancements to shifting performance
- Easy connect
- Smoother driving even over bumpy terrain
- Compatible with new generation of drive train
- Quick-Link (SM-CN910-12)
- Quick-Link connecting & removing pliers (TL-CN10) – Not included!
Product features
- Use:Â MTB, E-Bike
- Group: XT M8100
- Model:Â CN-M8100
- Gear front: 1/2-speed
- Gear rear: 12-speed
- Type: HG
- Hollow Pin: Yes
- Pin Link Plate: SIL-TEC
- Roller Link Plate:Â Chromizing
- Roller: SIL-TEC
- Connector: Quick-Link SM-CN910-12
Compatibility
- XT M8100
- SLX M7100
- XTR M9100
- DEORE M6100
- 12-speed E-Bike
Links
- 126
Weight
- approx. 252g / 116 Links (manufacturer information)
Technologies
2-Way Release
Rapidfire Plus
Rapidfire Plus Mono
RAPIDFIRE PLUS MONO LEVER provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever.
Benefits & Features
- Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration.
- Front double shifting with natural finger positioning supports intuitive shifting operation.
- Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions.
RAPIDFIRE PLUS MONO LEVER’s simple and intuitive lever operation allows riders to shift both up and down with a single lever. It supports front double shifting with natural finger positioning and intuitive shifting operation while maintaining a solid grip on the handlebar. 2WAY-RELEASE functionality delivers instantaneous push & pull movements to help riders respond quickly and accurately to rapidly changing conditions.
I-Spec-EV
I-SPEC EV creates a clean and action-optimized cockpit that provides greater focus and flexibility for a wider range of riders.
Benefits & Features
- Wider adjustment range allows riders of various styles, preferences and body styles to adjust to the optimal position.
- Ergonomic design, quicker lever access, and light operation enhance rider comfort and concentration.
With its wider adjustment range, I-SPEC EV levers can be adjusted to the optimal position to match a wider range of riding styles (ENDURO/XC/etc.), rider preferences and rider anatomies (hand and arm alignment). I-SPEC EV increases brake lever rigidity by moving the brake clamp position inward to create an extra point of contact between the bar and the lever. This additional bracing drastically increases bike control and braking engagement while maintaining space between the clamp and support point for other handlebar accessories.
MICRO SPLINE
MICRO SPLINE delivers lightweight aluminum FREEHUB body to reduce weight and 10 teeth top gear. Use combination with MICRO SPLINE cassette sprocket and FREEHUB.
Benefits & Features
- Lightweight aluminum MICRO SPLINE FREEHUB seamlessly integrates with small 10-tooth top gears.
- Smaller and more widely distributed splines limit cog damage on lightweight aluminum FREEHUB.
HYPERGLIDE+
HYPERGLIDE+ drivetrain’s redesigned cassette and chain promotes the next generation of MTB riding by enhancing speed, shifting efficiency and smoothness over any terrain.
Benefits & Features
- Better chain engagement, stronger retention, and smoother pedaling provide greater power and confidence over rapidly changing terrain.
- Definitive up & down shifting in both directions boosts riders’ concentration and acceleration.
- Ultra-efficient drivetrain with smoother power transmission increases comfort and reduces rider stress.
- A wide range of gearing choices, cassette options and the choice of a single or double front chainring, support a wide variety of MTB riding styles, abilities and preferences.
HYPERGLIDE+ will help kickstart the next generation of mountain bike riding by introducing continuous pedaling over virtually any terrain. This revamped drive system and dedicated chain deliver fast shifting, efficient power transfer and chain stability like you’ve never experienced before. It helps riders adapt to drastically changing trail conditions by precisely judging the optimal shifting moment for consistently smooth operation. HYPERGLIDE+ helps riders seamlessly maneuver rough trails by reducing pedaling shock and cutting shifting times by a 1/3. (vs. current HG system).




















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