Sell Shimano Acera M310 8 Speed Groupset Shifter M390 Rear Derailleur Rd MTB Mountain Bike Shipter LTWOO best price

Model: M310 Specifications: Right 8 Speed Material: Aluminum&Plastics Color: BlackMount: right(8 Speed) Size: L 6.2 x W 4.7 x H 4.5 inches Model: RD-M390 Speed: 7/8 speed Cage length: long Max sprocket: 34 teeth Total capacity: 45T Descrption: Made from high quality aluminum alloy material, which is very durable. Suitable for mountain bike. Large guide wheel, long life, low noise. Features: -- Right shifter is a trigger-type 8 speed shifter, with one lever for down-shifts and a thumb button for up-shifts. -- For 8 speed indexed SIS shifting. Optical gear display for convenient verification of gear position -- It works perfectly for optimum performance and maximum safety and longevity.