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Onyx Road/CX Disc Custom Handbuilt Rear Wheel With Enve G27 Carbon Rim 650b

Select Onyx Road/CX Rear Road Disc Hub


The Onyx CX CL HG-142/12mm Thru-bolt Rear Hub combines a lightweight 7075 Aluminum alloy hub shell with ceramic hybrid bearings to create a smooth rolling and strong hub. The patented dual sprag clutch mechanism provides instant clutch engagement during your power stroke and instant disengagement when coasting. The hub is totally silent before, during and after clutch engagement; a truly silent hub. The adjustable side load for the ceramic bearings ensure a smooth ride and the hardened stainless steel driver provides durability. Made in the U.S.A. with a 5-year limited warranty and is compatible with 142x12mm Thru-bolt. Center Lock Disc. (Individual hub images are for color reference only.)

Hub Spacing: 142x12mm TA
Cassette Body:Shimano HG Stainless Steel
Spoke Drilling: 24, 28, 32 or 36 hole
Weight: 462 grams
Thru-axle Not Included

Select Onyx Rear Hub Color


Onyx Candy Purple
Select Enve G27 Rear Disc Rim 650b


The ENVE G27 Tubeless Clincher Disc Rim is the G23's little big brother. Smaller in diameter and lighter in weight, the G27 is designed for the higher volume tires demanded by many riders on rougher and looser terrain. At 320 grams, ENVE's lightest tubeless rim is 27mm wide and designed for tires marked 27.5 or 650B. With an inner rim width of 27mm the G27 is designed to be paired with 650B gravel and road plus treads from 42mm-60mm, and 27.5 XC mountain treads from 1.9"-2.25". Armed against pinch flats with the patent pending Wide Hookless Bead, the G27 is at home off-road and capable on tamer stretches of singletrack. Those seeking the challenge of drop-bar riding over more technical terrain that is typically frequented by mountain bikes will benefit from the additional air volume, durability, and anti-flat performance benefits provided by the G27. If your path leads you to rough roads, single tracks, and multi-day bike packing adventures, the G27 may be for you. Made in Ogden, Utah. Rim is sized for 42-60c tire widths.

Weight: 320 grams
Size:650B (27.5")
Internal/External Dimension: 27/35.5mm
Drilling: 24 hole
Tubeless Compatible
Recommended Tire Size:42-60c (2.25")
Tubeless Rim Tape, Valves, Nipples Included
Disc Only

Available Only in 24-hole Rear


High spoke counts (having a lot of spokes) and 3X lacing increase the robustness and durability but come with a weight penalty (heavier). Low spoke counts (having less spokes) and 2X lacing decreases the robustness and durability but come with a weight advantage (less weight). You can run a lower spoke count on carbon rims because of the stiffness/strength of carbon. If you need some help or advice, feel free to call or email us. We'll make recommendations based on your unique needs. 1-800-688-8600 or
Select Spokes, Rear Wheel


Estimated weight each: 6.94g (264mm length)
Estimated weight of 32 spokes: 222g (264mm length)

The Performance Chart below is intended to help guide you to the correct spoke usage. Please note that the spoke rating can vary based on rider weight or riding terrain. If you need help, please give us a call (800-688-8600) .

The straight guage DT champion® 2.0mm (14 gauge) spoke offers great performance over the full spectrum of wheel builds. Whether you're building a reliable set of road wheels or a set of hard-charging enduro wheels, these spokes build a strong, sturdy wheel.
*Optional - Add Cassette, Shimano/SRAM


Use the pulldown to search cassettes
*Optional - Rear Road Rotor – Centerlock


Use the pulldown to search rotors
*Optional - Rear Road Rotor - 6-bolt


Use the pulldown to search rotors
*Optional - Add Cassette, Shimano HG (Sram)


Use the pulldown to search cassettes
*Optional - Add Tubeless Ready Rear Tire 650b


Use the pulldown to search tires
*Optional - Add Sealant


Use the pulldown to search sealant
*Optional - Add Rear Quick Release Skewer


No rear quick release skewer needed.
(This wheel does not include a rear quick release skewer. A rear skewer may be purchased from the pulldown menu.)


Your Onyx Road/CX custom rear wheel with Enve G27 Carbon Disc rim is proudly handbuilt in Colorado Springs, Colorado, USA.
Every wheel we turn out is built completely by hand to your specifications. All wheels are tensioned, stress-relieved, then re-tensioned before final truing. We have been building custom wheels since 1977 and take great pride in building the finest wheels available.

These rims can be used with standard tires and tubes, or tubeless tires. (For tubeless ready, please order tubeless tape and valves.) Never exceed your tire's recommended tire pressure.

Please Note:

  • Our wheels are built with a 2-cross or 3-cross lacing pattern (3-cross recommended.)
  • If you intend to use tubeless tires, make sure to select tubeless tape (from the rim tape pull-down menu) and to purchase tubeless valves (available in optional items at the bottom of your build.) Further, select tires from the "Tubeless Ready" tire selection.
  • If you choose to select optional items they will be installed on your wheels (with the exception of the sealant) unless otherwise specified. The sealant is not added because it can leak during shipping. If you are picking up your wheels at our retail location, we can add the sealant for you.
  • Manufacturer warranties are honored for the parts included in your build.
  • Custom wheels typically ship from our shop between 1-3 weeks after you've placed your order depending on how busy our shop is. However, if a part is not immediately available - from us or from our vendors - your build may take longer. We do our best to keep you updated on the situation, and are always happy to provide updates if you reach out. The easiest way to contact us for updates is to send us an email to and we will respond as quickly as we can.
Nipple Information
Alloy nipples are much lighter than brass nipples (approximately 20g per wheel) and are recommended for light weight builds. Brass nipples are stronger and less expensive. We've been successfully building wheels with both for many years.

Spoke Information
Colorado Cyclist primarily uses DT Swiss stainless spokes in our builds. This has been our choice for wheel building since the late 1970's and we certainly owe part of our wheel building success to the strength and longevity that DT Swiss spokes offer. We also use the very popular, lightweight and bladed Sapim CX-Ray spokes and have had excellent success with them. Spoke weight, as well as a spoke Performance Chart, are provided in the pull-downs that you'll use to pick your spokes. The Perfomance Chart should be used as a guide to compare the various spokes. However, there are so many variables involved in building a wheel properly (ie. rider weight, terrain, intended use, price, etc.), you may end up with questions. If you need some help or advice, feel free to call or email us. We'll make recommendations based on your unique needs. 800-688-8600 or