Chainring size 52-36T & 50/34T Crank ARM size is 170mm (100% Original with Package) PRODUCT SPECIFICATIONS MODEL NO FC-4700 SERIES TIAGRA 4700 Series Color Series color Threaded bottom bracket shell width (mm)_70 ✔ 2-PIECE CRANKSET ✔ Chainring combination 48-34T 50-34T 52-36T Compatible bottom bracket type_Outboard ✔ Crank fixing screw included ✔ Crank arm length (mm)_165 ✔ Crank arm length (mm)_170 ✔ Crank arm length (mm)_172.5 ✔ Crank arm length (mm)_175 ✔ Spider/Gear arms 4 Optional chain guard_Without chain/bash guard ✔ Recommended bottom bracket_Press-fit BB-RS500-PB Recommended bottom bracket_Threaded (normal) BB-RS501 Threaded bottom bracket shell width (mm)_68 ✔ Q-factor (mm) 150 Chain line (mm) 43.5 Compatible chain HG-X 10-speed P.C.D. left / right (mm) 110 P.C.D. (mm) 110 Rear speeds 10 READY STOCK, PUCHONG, MALAYSIA. Can Whatsapp / Call . https://wa.me/60126960321 Vince . https://wa.me/60126105929 Shop . office 03-8060 8967 Operation Hour Monday to Saturday (10.30AM TO 7PM) *Sunday Close* ----------------------------------------------- SANTA CRUZ (VK CYCLES PUCHONG) Map - https://goo.gl/maps/8y79tAyzkEE2 (LOCATION) No 39, Jalan BP 7/2 , Bandar Bukit Puchong, 47100, Selangor , Puchong Facebook - https://www.facebook.com/SpecialistRepairBicycles/ Instagram - VK CYCLES buy on shopee: VK CYCLES PUCHONG https://shopee.com.my/product/78112047/1771860991/ buy on LAZADA: VK CYCLES PUCHONG https://www.lazada.com.my/products/i3190879704.html?spm=a1zawi.24863640.table_online_product.1.61a84edfwEZUvq