Derailleurs are the components that guide the chain between the cogs. These usually work by having a cable pull them in one direction, and then relying on spring tension within the derailleur to pull opposite direction. With the rear derailleur made of a series of springs, rough terrain in mountain biking can see this component slap around, often leading to lots of noise and potential of a dropped chain. In recent years ‘clutch’ equipped rear derailleurs have become the standard for intermediate and better mountain bike derailleurs. This clutch creates friction in the cage that the chain runs through, and offers a quieter ride with a greater reduced chance of a dropped chain. New electronic technology sees small servomotors added to some derailleurs, which control the movement. This is known as electronic shifting. Such technology comes at a premium price, but removes risk of mud, water or general wear affecting shift performance. This is because a cable-operated (mechanical) system relies on precise cable tension and cable condition to accurately move the derailleur between gears.
SHIMANO SLX M7000 Rear DerailleurRM189.00
Shimano’s Rider Tuned philosophy is on display with SLX M7000, as the group offers a broad spectrum of drivetrain range options, and supports the latest trail and recreational bikes with bigger tires, wider hub flange spacing or both. New Shimano SLX M7000 has been redesigned from the ground up to perform in any trail situation.
The rear derailleur RD-M7000 was totally redesigned and incorporates premium features from XTR and DEORE XT. It features Shimano Shadow RD+ technology and a refined geometry for increased stability. The medium cage 11-speed rear derailleur (RD-M7000-11-GS) offer a drivetrain capacity of 41-teeth, whilst the long cage 10-speed rear derailleur (RD-M7000-10-SGS) offer a larger drivetrain capacity of 43-teeth to accommodate its triple chainring.