Shimano XTR 1x12-speed Upgrade Kit

Item number: 78067
XTR 1x12-speed Upgrade Kit - grey/clamp / 10-51
XTR 1x12-speed Upgrade Kit - grey/clamp / 10-51
XTR 1x12-speed Upgrade Kit - grey/clamp / 10-51
XTR 1x12-speed Upgrade Kit - grey/clamp / 10-51
XTR 1x12-speed Upgrade Kit - grey/clamp / 10-51
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.89 / 5.00

The XTR 1x12-speed upgrade kit by Shimano - get one more sprocket

The Shimano XTR 1x12-speed upgrade kit is aimed at all those who do not ride a Shimano crank, but want to enjoy a 12-speed Shimano shifting system as easily as possible. It consists of cassette (10-45 t), rear derailleur, Quick-Link chain and shifter, whereby you can choose between clamp and I-Spec EV. So add a sprocket and get ready for off road challenges with the 12-speed XTR upgrade.


Series: XTR M9100
Application: Cross Country, Enduro
Shifters & Derailleurs: 12-speed (mechanical)

Technical Information - Cassette:

Type: XTR CS-M9100-12 (Hyperglide+)
Gearing: 12-speed
Gradation: 10-12-14-16-18-21-24-28-32-36-40-45 T
Sprocket Material: steel (sprockets 1 to 4), titanium (sprocket 5 to 9), aluminium (sprocket 10 to12)
Freehub Compatibility: Shimano Micro Spline
Spider: 1 (aluminium)

Technical Information - Rear Derailleur:

Type: XTR RD-M9100 short/mid (GS) or long (SGS)
Attachment: standard
Capacity: 35 teeth (GS), 41 teeth (SGS)
Largest Sprocket Teeth (max.): 45 teeth (GS), 51 teeth (SGS)
Largest Sprocket Teeth (min.): 45 teeth (GS), 51 teeth (SGS)
Smallest Sprocket Teeth (max.): 10-tooth
Smallest Sprocket Teeth (min.): 10-tooth
Chainring Difference (max.): 0-tooth
Compatibility: Shimano MTB 12-speed
Derailleur Pulleys: 13-tooth
Outer Cage Material: carbon (CFRP)
Inner Cage Material: Aluminium
Other Materials: aluminium, stainless steel, carbon (CFRP)

Technical Information - Chain:

Type: XTR CN-M9100 (HG)
Number of Links: 126
Closure Type: master link (Quick-Link)
Pin Type: chromium-plated, hollow
Directional: yes
Material: steel

Technical Information - Shifter:

Type: XTR SL-M9100 or SL-M9100-I (Rapidfire Plus)
Mount: clamp (closed) or I-Spec EV
Body Material: Aluminium
Lever Material: aluminium (main lever), carbon (CFRP, release lever)
Cable: stainless steel, polymer coating
Cable Housing: OT-SP41
Adjustment Options: cable adjust, position adjust (I-Spec EV only), rotation adjust (I-Spec EV only)
Features: Instant Release, Multi Release, 2-Way Release


Freehub / Rear Hub: Shimano Micro Spline. Various manufacturers offer conversion kits.

Brake Lever: According to Shimano, only I-Spec EV, but there are adapter solutions for I-Spec (B) or I-Spec II from other manufacturers, e.g. Wolf Tooth.

Chainring: Shimano 12-speed or a chainring made for Shimano Hyperglide+ 12-speed.


- 1 x Shimano XTR CS-M9100-12 cassette
- 1 x Shimano XTR RD-M9100 Shadow+ rear derailleur
- 1 x Shimano XTR CN-M9100 chain
- 1 x Shimano XTR SL-M9100 shifter or (SL-M9100-I mm, right)
- 1 x Shimano cable (2050 mm)
- 1 x Shimano cable housing (1800 mm)
- 1 x Shimano aluminium cassette lockring
- 1 x cassette plastic spacer
- 1 x Shimano SM-CN910-12 Quick-Link master link


  • grey/I-Spec EV / 10-45, out of stock
  • grey/clamp / 10-45, out of stock

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