They come in two versions to fit either M/A/R/G 30 cranks or ENO/Square Taper Road cranks. Individual VBC rings are are available on the "Inner VBC Chainrings" page or the "Outer VBC Chainrings" page. When Doug saw the limitations presented by all the different bolt-circle diameters required to manufacture chainrings, he figured there had to be a better way. , and the VBC chainring system was born.
VBC stands for "Variable Bolt Circle" and replaces several different bolt patterns with one simple, slotted outer chainring design that accepts a wide range of our inner VBC chainrings. The outer chainring mounts directly to the crank and serves as the mounting point for the inner chainring. As bikes, drivetrains, and riding styles have changed in the last decade, the VBC system has found a following among riders tired of being told what gear ratios they should be using.
Available in 39 "recommended" combinations, there's no other system that allows this level of customization! Compatible with White Industries cranks only. Chainrings are made from U. Sourced 7075-T6 aluminum (except 48t-52t which are 6061-T6).Available in black anodize only. Available to fit either M/A/R/G cranks (30mm) or ENO/Road Square Taper cranks (17mm). The outer rings are specific to which style of crank you have, i. Each crank uses a different spline configuration for the outer ring. Inner VBC chainrings are the same for either crank style.
Chainring "sets" come assembled together with White Industries VBC-specific hardware. Hardware available separately (see Chainrings>VBC Bolt/Shift Hardware Set).Outer VBC chainrings cannot be used without an inner chainring! They are not stiff enough by themselves!
Inner VBC rings are engraved with "Inside", which should face toward the frame. 24T inner is not engraved and the wider/deeper tooth "shelf" should face toward the frame. Compatible with 9, 10, and 11 speed drivetrains only.
12 speed chains are too narrow and will fall/jam between the rings. We recommend Shimano front derailleurs only for best shifting performance. To ensure proper shifting we recommended inner/outer chainring combinations of. A difference no smaller than 10 teeth. A difference no bigger than 22 teeth.Inner chainrings are available from 24t to 38t in 2 teeth increments. Outer chainrings are available from 38t to 52t in 2 teeth increments.
VBC bolts: 9 ft lbs (12 Nm). NOTICE: When you get your order make sure that you inspect the items before assembly.The large pin on the outside of the Outer Chain Ring. Reduces the risk to have the chain locked between the outer ring and the crank arm. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Chainrings & BMX Sprockets".
The seller is "hdubbas" and is located in this country: US. This item can be shipped to United States, Fiji, Papua New Guinea, Wallis and Futuna, Gambia, Malaysia, Taiwan, Poland, Oman, Suriname, United Arab Emirates, Kenya, Argentina, Guinea-Bissau, Armenia, Uzbekistan, Bhutan, Senegal, Togo, Ireland, Qatar, Burundi, Netherlands, Slovakia, Slovenia, Equatorial Guinea, Thailand, Aruba, Sweden, Iceland, Macedonia, Belgium, Israel, Kuwait, Liechtenstein, Benin, Algeria, Antigua and Barbuda, Italy, Swaziland, Tanzania, Pakistan, Burkina Faso, Panama, Singapore, Kyrgyzstan, Switzerland, Djibouti, Chile, China, Mali, Botswana, Republic of Croatia, Cambodia, Indonesia, Portugal, Malta, Tajikistan, Vietnam, Cayman Islands, Paraguay, Saint Helena, Cyprus, Seychelles, Rwanda, Bangladesh, Australia, Austria, Sri Lanka, Gabon Republic, Zimbabwe, Bulgaria, Czech Republic, Norway, Côte d'Ivoire (Ivory Coast), Kiribati, Turkmenistan, Grenada, Greece, Haiti, Greenland, Yemen, Afghanistan, Montenegro, Mongolia, Nepal, Bahamas, Bahrain, United Kingdom, Bosnia and Herzegovina, Hungary, Angola, Western Samoa, France, Mozambique, Namibia, Peru, Denmark, Guatemala, Solomon Islands, Vatican City State, Sierra Leone, Nauru, Anguilla, El Salvador, Dominican Republic, Cameroon, Guyana, Azerbaijan Republic, Macau, Georgia, Tonga, San Marino, Eritrea, Saint Kitts-Nevis, Morocco, Saint Vincent and the Grenadines, Mauritania, Belize, Philippines, Democratic Republic of the Congo, Republic of the Congo, Western Sahara, Colombia, Spain, Estonia, Bermuda, Montserrat, Zambia, South Korea, Vanuatu, Ecuador, Albania, Ethiopia, Monaco, Niger, Laos, Ghana, Cape Verde Islands, Moldova, Madagascar, Saint Pierre and Miquelon, Lebanon, Liberia, Bolivia, Maldives, Gibraltar, Hong Kong, Central African Republic, Lesotho, Nigeria, Mauritius, Saint Lucia, Jordan, Guinea, British Virgin Islands, Canada, Turks and Caicos Islands, Chad, Andorra, Romania, Costa Rica, India, Mexico, Serbia, Kazakhstan, Saudi Arabia, Japan, Lithuania, Trinidad and Tobago, Malawi, Nicaragua, Finland, Tunisia, Luxembourg, Uganda, Brazil, Turkey, Tuvalu, Germany, Egypt, Latvia, Jamaica, Niue, South Africa, Brunei Darussalam, Honduras.