The Absolute Black Cyclocross Chainring can augment your CX rig even further with its' lightweight, stiff construct, and clean good-looks. The cross-specific chainring is available in common CX 38 tooth and 42 tooth options, and features specifically designed chamfers that are optimized to efficiently shed mud, making those filthy mid-race dashed less of a threat to the functionality of your drivetrain. The narrow-wide tooth profile retains the chain snugly, allowing you to end things with your chainguide and bashring. This can potentially save you more than 100 grams on an existing 1x setup and more than 200 grams on a 2x setup.
Absolute Black Cyclocross Chainring SPECIFICATIONS:
Size (Mass +/-1g): 130BCD: 42T - 64g ; 38T - 49g
110BCD: 42T - 81g : 38T - 59g
Color: Black, Racing Red
Compatibility: All 5 arm cranks with 110 or 130 BCD
Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction
Finish: type II anodizing
Mounting holes: 110mmx5 or 130mmx5
Chain options: 10 or 11spd chain for geared bike or 6-8 spd for SS. If used in 1x9 drivetrain - 10spd chain must be used to obtain the performance. (yes - 10spd chain will work great on 9spd cassette)
Chainguide needed?: No, but chainlength is important as you don't run clutch type rear mech. Short cage really recommended.
Important information for SHIMANO derailleur users.
In order to get best results we recommend increasing cage return spring tension. New derailleurs are assembled with the spring in the mount that allows the most relaxed position of the spring. However there is another position on the cage which will increase that tension.
Sram users are not required to do that as OEM springs are already in high tension position.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
I needed a 38t ring to fit on my Sram Force 1x crank set up. The one I was replacing was a Wolf Tooth 42t ring, which I liked but was too stout gearing for the climbing I was about to do at an event coming up. I ordered a Wolf Tooth 38t ring, but couldn't get it mounted up. There was not enough clearance at the crank arm. I'd either have to file a millimeter or two off of the ring or the arm! So I had one of these fast-shipped to me hoping I could get it all to work before my event. Note in the photo how the Absolute Black ring has chamfering on the internal diameter to make it thinner towards the center. That is what did the trick to allow this to fit to my cranks. Worked great on my 50 mile adventure race, no chain drops!
Comparison of a Wolf Tooth 38t chainring on left, with an Absolute Black 38t CX ring on the right.
Lightweight, looks good, and stopped my chain-drop problem
The previous owner of my bike installed a regular 2x ring on my CX bike. It wasn't good since it resulted in frequent chain drops. I was hoping for a smaller ring, but this was the smallest that would fit on my130BCD crank. It installed easily. I've used this for a handful of training sessions and a few races. No issues at all and no more dropped chains. I'm not sure if the design actually helps reduce mud build up, but at least it doesn't appear to hurt. And it looks good!
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