ABSOLUTE BLACK 2x For Sram 110 BCD oval chainring

Our premium shimano 110/5(bolt pattern) oval chainrings are designed for pre 2014 cranks like shimano dura-ace fc7950, ultegra fc6750, shimano 105 -5750 and many more with 5 bolt fitting. these are finest shift-able oval chainrings on the market. specifications: - weight: 30g compatibility: - shimano dura-ace 7950, ultegra 6750, shimano 105- 5750, tiagra 4650, fsa, rotor 3d & 3d+, s-works and many more older cranks. also fits sram force and red but not compatible with sram cranks that have 1 hidden chainring bolt (force22, red22). compatible with di2 bolts: - for outer chainring please order long bolts - changing inner chainring to oval only? use original bolts material & finish: - cnc machined 7075 txxx aluminum. long-lasting construction, type ii anodizing ovality: - optimized to each size separately. 34t- 6.5% ; 36t- 11.4%, 38t- 11.4%, 50/52 - 10.3% ; timing of 108 -109.5° after tdc (top dead center) - ideal for road climbing. patent pending