Shimano XT Boost M8120 | M8130 Super Boost 11 | 12 Speed Crank ArmsShimano XT Boost M8120 M8130 Super Boost 11 12 Speed Crank Arms Made in Japan 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

With its wide 35mm rim

Folding Bike Front Derailleur 40mm Adapter Clamp For SP8 Single Disc Crankset To 2/3 Disc Using this adapter

The top-choice for City bikes

Recommended air pressure : 75-85PSI

An E-Type fit chainguide

letters and numbers

Rated power: 100w

Head Weight: 680g (24oz)

and the bike component responsible for that is the rear derailleur hanger

crisp shifting sets the standard at this price point

(PRICE VARIES / PEAK HRS additional $10-$25 IF DISTANCE IS FURTHER)

700c X 25c