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DUAL SIS FRONT AND REAR INDEX SHIFTING

DUAL SIS FRONT AND REAR INDEX SHIFTING

The SIS rear index shifting system was adopted at the front. With the index system at the front shifting operation is easier and more comfortable.

Benefits & Features

・ Indexed front and rear derailleur shifting allows for easy shifting and comfortable riding.

FRONT SIS + REAR SIS = DUAL SIS

USEFUL INFORMATION TIPS

Make cycling more enjoyable for entry level riders:

*1: Gear spike

Front chain wheel

To shift front gears while pedaling force is applied,the chain must be set onto a gear spike first and then transferred onto another gear. SHIMANO front chain wheels feature special gear spike to enable reliable gear changes for a long period of time.

*1: Special bulge

Front derailleur

One quick click of the shifter lever gets you into gear.

The derailleur is aligned automatically without the need to over-shift or tune. The DUAL SIS front derailleur features a special bulge on the inner chain guide flange to provide fast and smooth SIS shifting with DUAL SIS index compatible Front chain wheel.

*1: Chainline stabilizer

Bottom bracket

Chainline stabilizer on bottom bracket spindle secure accurate chainline control for genuine shifting performance in combination with DUAL SIS compatible items.

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