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Our Winter line of Shimano 110/4 bcd oval chainrings is designed for new type of Shimano cranks like Dura-Ace 9000, Ultegra 6800, 105- 5800 and others. This is a simplified version of our Premium line. Same aluminium, teeth and shifting ramps, but less material machined out on the outer side for easy maintenance and cleaning on winter training bikes. Weight is increased on these chainrings as compared to our Premium line for that reason.
Winter line chainrings are a simplified version of our state-of-the-art Premium line. They use same aluminium, teeth and shifting ramp design. However they are less machined out from the front for easy maintenance and cleaning when used on winter bikes. This chainring is designed for your winter/training bike where weight is not an issue, but easiness of cleaning is.
Compatibility:Shimano Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and other power meters
Material: CNC machined 7075 Txxx Aluminum. Long-lasting construction
Mounting: 110 BCD x 4
Bolts: For Outer chainring please order Long bolts. Changing Inner chainring to oval only? Simply use original bolts.
Ovality: Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending
Advantages of Absolute Black Winter Oval chainrings:
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I have now changed two inner and outer chainrings on two cycles. I bought them all from you. They we the cheapest offered that I could find on the internet. Delivery was swift and staff helpful. The change has been well worth it. The winter ring is not as pretty but is more practical. Thank you.