The Shimano Tourney Rear Derailleur is a great choice for 6 - 7 speed drivetrains. It's the ideal replacement part that ensures smooth gear shifting. Here are its key specs: Compatible with HG - UG 7/6 - speed chains. The low sprocket has a max/min of 28/11, the pulley has 11 teeth, and the top sprocket max/min is 14 - 11. More details: SKU is ERDFT35AMB, UPC is 4524667543107, size is UNI. It's available for Click & Collect and Delivery.

Using your Shimano Tourney Rear Derailleur is easy. First, make sure it's properly installed on your bike's hanger mount. When you're riding and want to change gears, just use your bike's shifter. The derailleur will move the chain between the sprockets smoothly. As for maintenance, regularly clean the derailleur with a soft cloth to remove dirt and grime. You can also use a light lubricant on the moving parts to keep them working well. Be careful not to apply too much force when shifting gears to avoid damaging the derailleur. If you notice any unusual noises or difficulty in shifting, it might be a sign that the derailleur needs adjustment or further inspection.