SHIMANO RD-RX820 GRX 12SPD REAR DERAILLEUR 十二速波腳

描述

RD-RX820 相容於 11-34T 及 11-36T 12 速飛輪，提供寬廣檔位範圍，讓您不論在何種地形，都能以舒適的迴轉速騎乘。SHIMANO GRX 12 速後變速器也配備整合式鏈條穩定裝置，可在崎嶇地形騎乘時更安靜變速，並提升鏈條管理安全性。鏈條張力裝置則配備開啟/關閉開關，以配合在平滑路面騎乘的需求。 FEATURE 可調整的鏈條穩定裝置能防止鏈條甩動和掉落 SHIMANO SHADOW RD+ 可配合地形開啟/關閉的穩定裝置開關 BENEFIT 安靜且安全的後變速系統，適合在崎嶇地形上使用 混合路面上的變速效能順暢穩定 最大前齒盤差：17T 高位後飛輪齒片：最大 11T/最小11T 低位飛輪齒片：最大 36T/最小 34T 總齒容量：42T   PRODUCT SPECIFICATION RD-RX820 Previous slideNext slide Series GRX Model no. RD-RX820 Color 1 Series color 2 – Rear speeds 12 Compatible chain HG 12-speed RD construction SHIMANO SHADOW RD – SHIMANO SHADOW RD+ ✔ Double servo – Applicable derailleur hanger SHIMANO MTB type Direct attachment (conventional) – Direct mount – SHIMANO ROAD type Direct attachment (conventional) ✔ Direct mount ✔ UDH standard ✔ Riveted adapter ROAD type – BMX-track type – Cable adjuster ✔ Max. front difference 17T Total capacity 42T Low sprocket Max. 36T Min. 34T Top sprocket Max. 11T Min. 11T Fluoric coated link bushings 4 Pulley Guide pulley bearing ✔ Tension pulley bearing ✔ Teeth 11/13T Screws material SUS Sunken type pulley screw ✔ Bracket Material Aluminum Finish Painted B-axle Hollow axle ✔ Material Stainless steel Finish Passivation B-axle 2 Hollow axle – Material Aluminum Finish Anodized Bracket body Material Aluminum Finish Painted P-axle Material Steel Finish – Plate body Material GFRP Finish – Outer link Material Aluminum Finish Painted Inner link Material GFRP Finish – Outer plate Material Aluminum Finish Painted Inner plate Material Aluminum Finish Painted Cable fixing screw Material Stainless steel Finish Passivation Stroke adjusting screw Material Steel Finish Plated Average weight (g) 270 Note