Overview
Our premium 2X Cannondale Hollowgram compatible direct mount Oval chainrings are designed for Hollowgram crank family like SI, SISL, SISL2. Incredibly stiff and light. Super fast shifting thanks to our patented shifting ramp design. Sold as set only.
ADVANTAGES OF OUR SPECIAL DIRECT MOUNT CHAINRINGS:
- Finest design to provide excellent weight to strength ratio
- One of a kind special oval shape (Patent Pending)
- They save weight because they don't need the spider and chainring bolts.
- Superb quality and great look.
- You will ride faster using ovals.
- You will not "feel" the oval shape at all
- Reduces stress on knees
- We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape.
Specs
Size (Mass +/-1g): 50/34T (178g), 52/36T - coming soon
Color: Black
Compatibility: Cannondale Hollowgram Si, SiSL, SiSL2. chain: 10, 11spd
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%, 50/52T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending
Designed in United Kingdom, manufactured in Poland using German materials. Truly European products.
Warranty
absoluteBLACK warranties its products, when used under normal non-abusive conditions, to be free from defects in materials or workmanship for a period of 1 year from the original date of purchase. Any absoluteBLACK product that is found by absoluteBLACK to be defective in materials or workmanship will be repaired or replaced at the sole discretion of absoluteBLACK. (for HOLLOWcage please refer to the next question).
This warranty is expressly limited to the repair or replacement of a defective item, and said repair or replacement is the sole remedy of the warranty. This warranty extends from the date of purchase, is offered only to the original retail purchaser, and is not transferable. This warranty does not cover damage or failure resulting from accident, misuse, abuse, alteration, neglect, normal and reasonable wear & tear (chainrings are wear items), crash or impact, failure to perform routine maintenance as instructed, or use other than that for which the product was intended. It also does not cover fading or wearing of anodizing. In no event shall absoluteBLACK be liable for any loss inconvenience or damage, whether direct, incidental, consequential or otherwise resulting from breach of any express or implied warranty or condition of merchantability, fitness for a particular purpose, or otherwise with respect to this product except as set forth herein. Under no circumstance shall absoluteBLACK or its third party suppliers be liable for any direct, indirect, incidental, special, consequential or any other kind of damages. This written express warranty is in lieu of all other warranties, implied or expressed, and does not cover any representation or warranty made by dealers beyond the provisions of this warranty.
