Product dimensions (L x W x H) 15 x 5 x 5 cm 317 grams Color Black Item weight 317 Grams About this item Band adjustment screw folding bike bicycle B of the tension adjustment band easy to adjust even the starter can be easily operated. The rear derailleur is made of aluminum alloy material. It is firm and wear-resistant anti-rust and anti-corrosion. It can be used for a long time. Precise gears provide smooth and stable shifting performance and make riding easy and comfortable. Suitable for MTB mountain bikes road bikes variable speed bikes folding bikes and city bikes. It is your must-have bicycle accessory during your cycling trip. With a guide wheel beautiful appearance and low noise the 7/8-speed rear derailleur is an ideal choice for mountain bike enthusiasts.