Chain guide, with lower pulley to keep the chain taut. CNC milled from aluminum 7075 T651 to maintain the highest quality but at the same time keep the weight down. Specifications: chainring range: 32T – 38T backplate made out of aluminum 7075 T651 Backplate thickness 5.5mm hardware made out of forged aluminum 7075 ISCG hardware made out of stainless steel ISCG & ISCG05 compatible ISCG05 : 157g ISCG: 152g
