Absolute Black AbsoluteBLACK 130/5 BCD 2v 39D Oval Chainring Black

The absoluteBLACK oval 130/5 BCD 2v chainring is designed for all Shimano 5-bolt cranksets such as Dura-Ace 7950, Ultegra 6750, Shimano 105 -5750.

Both the inner and outer oval plates are optimised for smooth shifting. For this reason, the back of the Oval plate has no trimmings, like other oval products on the market. Instead, they design smooth, angled surfaces to help the chain slide quickly and accurately between the chainrings. The outer oval plates have 6 ramps for easy and fast gear changes, even under load. Each outer plate also has 12 down shift points. Instead of steel shifting pins, we use a CNC-machined “ramp and gap” solution. Special raised ramps work in conjunction with the tooth pockets to stabilize the chain when changing position. Oval plates do NOT require any modification to the front derailleur (standard) to function properly.

Features:
– Includes screws
– Material: CNC machined aluminium 7075
– Weight: 63 g
– Compatibility: Shimano Dura-Ace 7950, Ultegra 6750, Shimano 105-5750, Tiagra 4650, FSA. Also fits SRAM cranks with a removable compressor adjuster that has 1 hidden plate pin
– Mastered oval plate, so you can get the best possible advantage from the oval / elliptical shape
– Thinner design for excellent weight-to-strength ratio
– Special one-of-a-kind oval shape
– Greatly improves traction and climbing capabilities
– Special 3D tooth machining for reduced mud effect and reduced wear and noise
– Ovality: Optimized for each size separately. 34- 6.5% ; 36- 11.4%, 38- 11.4%, 50/52 – 10.3%, 39- 6.5%, 53 – 10.3%