The boost M8120 crank with 178 mm Q-factor, 55 mm chainline and 148 mm boost stands for highest drive efficiency at low weight. It offers optimum power transmission and maximum speed for the new XT system, which only use 1 chainring.
The new XT 1x12-speed cranks are characterised by DYNAMIC CHAIN ENGAGEMENT+ technology, whose special high-precision tooth profile ensures that the chain finds optimum grip on the upper part of the chainring on rough terrain, but detaches equally well from the chainring at the bottom, thus ensuring efficiency, smoothness and low noise of the drive. The cranks are equipped with a direct-mount system for quick and safe assembly of the chainrings, enabling chainrings to be changed in no time at all. The crank is available in boost and super boost specifications.
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.
Dcbikes Product Features :
⚠ Note 🌟 Our M8120 Boost arms comes with 1 X 3mm spindle spacer only and M8130 arms comes with 2 X 4mm spindle spacers
⚠️No chain ring tool is included
🌟XT Boost FC-M8120 1 12-SPEED CRANK
FC-M8120-1 Q-Factor 178mm
Chain line: 55mm
Spacing: 148mm (Boost)
Compatibility 1x12-speed Shimano products
Mounting system Direct mount (Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release)
Chainring SM-CRM85: Included
Group: XT M8100
Gear rear: 11/12-speed
Construction: Hollowtech II
Compatible Chain: CN-M8100 12-speed
Crank arms: 4 arm
Chain line: 55mm
Crank Arm Length: 170mm
WEIGHT Approx 608g with chainring (manufacturer information)
🌟Shimano's XT FC-M8130 1x Crank Arms
Feature a lightweight design for aggressive trail riding. Direct mount chainrings and a special gear tooth profile for improved chain retention are included with a completely new design, along with a 181mm Q-factor.
⚠️Note🌟Chainring is not included
Arm Materia l: Aluminum Arm Length: 170mm
Technical details of the 1x12-speed SuperBoost+ crank
Material: Crank arms: aluminium (anodized) Axle: steel Chainline: 56.5 mm Q-Factor: 181 mm Recommended rear O.L.D.: 157 mm Weight : approx. 636 grams (175 mm, incl. 32 teeth chainring, manufacturer's specs)
Package Includes :
1 X New Set Of Crank Arms As Picture Only
⚠️Note🌟No Chainring Tool is Included
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