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The development of the Hollowtech II crankset took place with a view to optimal and efficient power transmission. Hollowtech technology enables extremely light, hollow crank arms manufactured using Shimano's exclusive forging technology for maximum rigidity. The result is mountain bike components that provide the right setup for almost every biker.
The 2x11 cranks with Dyna-Sys 11 system philosophy were especially designed to minimise shifting jumps during chainring changes. This results in fewer compensating circuits and the cadence remains more constant. The new SLX 2-speed cranks continue to have a difference of ten teeth and are available in 34-24, 36-26 and 38-28 ratios. 1-speed and 2-speed cranks can be used with the 11-40Z. or 11-42Z. SLX cassettes. In addition, the Hollowtech II cranks are also available as so-called B versions (outboard), which allow a further outer chain line for the BOOST standard with 148 mm rear hubs. They all have in common compatibility with shorter chainstays and larger wheels and tyres, making them ideally suited to the requirements of modern mountain bikes.
Side Swing The new front derailleur design allows a more efficient, shorter cable feed and a cage that moves horizontally in the chain running direction. Side Swing front derailleurs also offer more leeway in the design of the chainstays, as there are no more joints behind the seat tube.
Shoulder diameter: 34.9mm, with adapter 31.8 / 28.6mm